Form 10-Q - Quarterly report [Sections 13 or 15(d)]

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

(Mark One)


☑			QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2024


☐			TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number 001-36569


LANTHEUS HOLDINGS, INC.
(Exact name of registrant as specified in its charter)


Delaware		35-2318913
(State or other jurisdiction of incorporation or organization)		(IRS Employer Identification No.)

201 Burlington Road, South Building		01730
Bedford,	MA
(Address of principal executive offices)		(Zip Code)


(978)			671-8001
(Registrant’s telephone number, including area code)

Not Applicable
(Former name, former address and former fiscal year, if changed since last report

Securities registered pursuant to Section 12(b) of the Act:


Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common stock, par value $0.01 per share	LNTH	The Nasdaq Global Market

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☑ No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files). Yes ☑ No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer

☑

Accelerated filer

☐

Non-accelerated filer

☐

Smaller reporting company

☐

Emerging Growth Company

☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

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Indicate by check mark whether the registrant is a shell company (as defined by Rule 12b-2 of the Act) Yes ☐ No ☑

The registrant had 69,430,642 shares of common stock, $0.01 par value, outstanding as of July 25, 2024.

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LANTHEUS HOLDINGS, INC.

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			Page
PART I. FINANCIAL INFORMATION			1
Item 1. Financial Statements (Unaudited)			1
Condensed Consolidated Balance Sheets			1
Condensed Consolidated Statements of Operations			2
Condensed Consolidated Statements of Comprehensive Income			3
Condensed Consolidated Statements of Changes in Stockholders’ Equity			4
Condensed Consolidated Statements of Cash Flows			5
Notes to Condensed Consolidated Financial Statements			7
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations			22
Item 3. Quantitative and Qualitative Disclosures About Market Risk			35
Item 4. Controls and Procedures			36
PART II. OTHER INFORMATION			37
Item 1. Legal Proceedings			37
Item 1A. Risk Factors			38
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds			45
Item 3. Defaults Upon Senior Securities			45
Item 4. Mine Safety Disclosures			45
Item 5. Other Information			45
Item 6. Exhibits			46
SIGNATURES			47

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PART I. FINANCIAL INFORMATION

Item 1. Financial Statements (Unaudited)

Lantheus Holdings, Inc.

Condensed Consolidated Balance Sheets

(Unaudited)

(in thousands, except par value)


	June 30, 2024		December 31, 2023
Assets
Current assets
Cash and cash equivalents	$	757,018	$	713,656
Accounts receivable, net	372,288		284,292
Inventory	70,516		64,029
Other current assets	24,165		16,683
Assets held for sale	7,159		7,159
Total current assets	1,231,146		1,085,819
Investment in equity securities	116,423		—
Property, plant and equipment, net	158,158		146,697
Intangibles, net	172,239		151,985
Goodwill	61,189		61,189
Deferred tax assets, net	151,185		150,198
Other long-term assets	49,491		55,261
Total assets	$	1,939,831	$	1,651,149
Liabilities and stockholders’ equity
Current liabilities
Current portion of long-term debt and other borrowings	$	868	$	823

Accounts payable	49,774		41,189

Accrued expenses and other liabilities	212,643		145,338

Total current liabilities	263,285		187,350
Asset retirement obligations	23,130		22,916
Long-term debt, net and other borrowings	563,188		561,670
Other long-term liabilities	63,543		63,321
Total liabilities	913,146		835,257
Commitments and contingencies (See Note 18)
Stockholders’ equity
Preferred stock ($0.01 par value, 25,000 shares authorized; no shares issued and outstanding)	—		—
Common stock ($0.01 par value, 250,000 shares authorized; 70,750 and 69,863 shares issued as of June 30, 2024 and December 31, 2023, respectively)	708		699
Additional paid-in capital	775,545		757,727
Treasury Stock at cost - 1,339 shares as of June 30, 2024 and December 31, 2023	(75,000)		(75,000)
Retained earnings	326,642		133,503
Accumulated other comprehensive loss	(1,210)		(1,037)
Total stockholders’ equity	1,026,685		815,892
Total liabilities and stockholders’ equity	$	1,939,831	$	1,651,149

The accompanying notes are an integral part of these condensed consolidated financial statements.

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Lantheus Holdings, Inc.

Condensed Consolidated Statements of Operations

(Unaudited)

(in thousands, except per share data)


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Revenues	$	394,091	$	321,700	$	764,066	$	622,484
Cost of goods sold	138,317		119,053		266,446		342,761
Gross profit	255,774		202,647		497,620		279,723
Operating expenses
Sales and marketing	45,035		36,456		90,581		69,073
General and administrative	47,409		26,151		95,304		49,422
Research and development	60,601		15,901		108,625		46,433
Total operating expenses	153,045		78,508		294,510		164,928
Gain on sale of assets	—		—		6,254		—
Operating income	102,729		124,139		209,364		114,795
Interest expense	4,862		4,933		9,721		9,924
Investment in equity securities - unrealized loss (gain)	22,537		—		(38,167)		—
Other income	(9,044)		(4,482)		(17,832)		(7,713)
Income before income taxes	84,374		123,688		255,642		112,584
Income tax expense	22,301		29,557		62,503		21,260
Net income	$	62,073	$	94,131	$	193,139	$	91,324
Net income per common share:
Basic	$	0.89	$	1.38	$	2.80	$	1.34
Diluted	$	0.88	$	1.33	$	2.74	$	1.31
Weighted-average common shares outstanding:
Basic	69,356		68,371		69,056		68,062
Diluted	70,601		71,014		70,364		69,957

The accompanying notes are an integral part of these condensed consolidated financial statements.

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Lantheus Holdings, Inc.

Condensed Consolidated Statements of Comprehensive Income

(Unaudited)

(in thousands)


	Three Months Ended June 30,				Six Months Ended June 30,
	2024		2023		2024		2023
Net income	$	62,073	$	94,131	$	193,139	$	91,324
Other comprehensive income (loss):

Foreign currency translation	(32)		426		(173)		307


Comprehensive income	$	62,041	$	94,557	$	192,966	$	91,631

The accompanying notes are an integral part of these condensed consolidated financial statements.

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Lantheus Holdings, Inc.

Condensed Consolidated Statements of Changes in Stockholders’ Equity

(Unaudited)

(in thousands)


	Six Months Ended June 30, 2024
	Common Stock			Treasury Stock		Additional Paid-In Capital		Retained earnings		Accumulated Other Comprehensive Loss		Total Stockholders’ Equity
	Shares	Amount			Shares									Amount
Balance, January 1, 2024	69,863	$	699		1,339	$	(75,000)	$	757,727	$	133,503	$	(1,037)		$	815,892
Net income	—	—			—	—		—		131,066		—			131,066

Other comprehensive loss	—	—			—	—		—		—		(141)			(141)
Stock option exercises and employee stock plan purchases	86	1			—	—		2,756		—		—			2,757
Vesting of restricted stock awards and units	988	9			—	—		(9)		—		—			—
Shares withheld to cover taxes	(302)	(3)			—	—		(19,415)		—		—			(19,418)
Stock-based compensation	—	—			—	—		15,384		—		—			15,384
Balance, March 31, 2024	70,635	$	706		1,339	$	(75,000)	$	756,443	$	264,569	$	(1,178)		$	945,540
Net income	—	—			—	—		—		62,073		—			62,073

Other comprehensive loss	—	—			—	—		—		—		(32)			(32)
Stock option exercises and employee stock plan purchases	68	1			—	—		1,548		—		—			1,549
Vesting of restricted stock awards and units	58	1			—	—		(1)		—		—			—
Shares withheld to cover taxes	(11)	—			—	—		(924)		—		—			(924)
Stock-based compensation	—	—			—	—		18,479		—		—			18,479
Balance, June 30, 2024	70,750	$	708		1,339	(75,000)		$	775,545	$	326,642	$	(1,210)		$	1,026,685


	Six Months Ended June 30, 2023
	Common Stock			Treasury Stock		Additional Paid-In Capital		Accumulated Deficit		Accumulated Other Comprehensive Income		Total Stockholders’ Equity
	Shares	Amount			Shares									Amount
Balance, January 1, 2023	68,851	$	689		1,339	$	(75,000)	$	715,875	$	(193,158)	$	(1,259)		$	447,147
Net loss	—	—			—	—		—		(2,807)		—			(2,807)

Other comprehensive loss	—	—			—	—		—		—		(119)			(119)
Stock option exercises and employee stock plan purchases	120	1			—	—		2,781		—		—			2,782
Vesting of restricted stock awards and units	813	8			—	—		(8)		—		—			—
Shares withheld to cover taxes	(154)	(2)			—	—		(11,152)		—		—			(11,154)
Stock-based compensation	—	—			—	—		9,667		—		—			9,667
Balance, March 31, 2023	69,630	$	696		1,339	$	(75,000)	$	717,163	$	(195,965)	$	(1,378)		$	445,516
Net income	—	—			—	—		—		94,131		—			94,131
Other comprehensive income	—	—			—	—		—		—		426			426
Stock option exercises and employee stock plan purchases	73	1			—	—		1,346		—		—			1,347
Vesting of restricted stock awards and units	68	1			—	—		(1)		—		—			—
Shares withheld to cover taxes	(16)	—			—	—		(1,467)		—		—			(1,467)
Stock-based compensation	—	—			—	—		12,692		—		—			12,692
Balance, June 30, 2023	69,755	$	698		1,339	$	(75,000)	$	729,733	$	(101,834)	$	(952)		$	552,645

The accompanying notes are an integral part of these condensed consolidated financial statements.

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Lantheus Holdings, Inc.

Condensed Consolidated Statements of Cash Flows

(Unaudited)

(in thousands)


	Six Months Ended June 30,
	2024		2023
Operating activities
Net income	$	193,139	$	91,324
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation, amortization and accretion	30,264		30,375
Impairment of long-lived assets	—		138,050

Amortization of debt related costs	2,145		2,155
Changes in fair value of contingent assets and liabilities	100		(8,975)



Provision for excess and obsolete inventory	1,925		3,179
Stock-based compensation	33,863		22,359
Gain on disposal of assets	(6,254)		—


Unrealized gain on investment in equity securities	(38,167)		—
Charges incurred in connection with acquired IPR&D	66,000		—
Deferred taxes	(7,629)		(39,616)
Long-term indemnification receivable	—		(327)
Long-term income tax payable and other long-term liabilities	1,588		1,386
Other	4,582		1,735
Changes in assets and liabilities which provided (used) cash:
Accounts receivable	(88,028)		(39,078)
Inventory	(7,975)		(19,255)
Other current assets	3,166		(9,260)
Other long-term assets	(353)		—
Accounts payable	6,873		14,186
Accrued expenses and other liabilities	16,719		(112,004)
Net cash provided by operating activities	211,958		76,234
Investing activities
Capital expenditures	(19,448)		(19,865)
Acquisition of assets, net	(33,911)		(45,345)
Proceeds from sale of assets	8,000		—
Purchases of investment in equity securities	(78,256)		—
Acquisition of exclusive license option	(28,000)		—
Net cash used in investing activities	(151,615)		(65,210)
Financing activities

Payments on long-term debt and other borrowings	(628)		(528)



Contingent value rights settlement	—		(3,700)
Proceeds from stock option exercises	2,483		3,189
Proceeds from issuance of common stock	1,823		940
Payments for minimum statutory tax withholding related to net share settlement of equity awards	(20,424)		(12,621)
Net cash used in financing activities	(16,746)		(12,720)
Effect of foreign exchange rates on cash, cash equivalents and restricted cash	(213)		139
Net increase (decrease) in cash, cash equivalents and restricted cash	43,384		(1,557)
Cash, cash equivalents and restricted cash, beginning of period	715,285		417,241
Cash, cash equivalents and restricted cash, end of period	$	758,669	$	415,684

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Lantheus Holdings, Inc.

Condensed Consolidated Statements of Cash Flows (Continued)

(Unaudited)

(in thousands)


	Six Months Ended June 30,
	2024		2023
Reconciliation to amounts within the condensed consolidated balance sheets
Cash and cash equivalents	$	757,018	$	414,076
Restricted cash included in other long-term assets	1,651		1,608
Cash, cash equivalents and restricted cash at end of period	$	758,669	$	415,684


	Six Months Ended June 30,
	2024		2023
Schedule of non-cash investing and financing activities
Additions of property, plant and equipment included in liabilities	$	7,937	$	9,826
Acquisition of IPR&D included in liabilities	$	37,000	$	—
Lease liability settled through transfer of lease	$	376	$	—

The accompanying notes are an integral part of these condensed consolidated financial statements.

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Lantheus Holdings, Inc.

Notes to Condensed Consolidated Financial Statements

(Unaudited)

Note Regarding Company References and Trademarks

Unless the context otherwise requires, references to the “Company” and “Lantheus” refer to Lantheus Holdings, Inc. and its direct and indirect wholly-owned subsidiaries; references to “Lantheus Holdings” refer to Lantheus Holdings, Inc. and not to any of its subsidiaries; references to “LMI” refer to Lantheus Medical Imaging, Inc., the direct subsidiary of Lantheus Holdings; references to “Lantheus Alpha” and “Meilleur” refer to Lantheus Alpha Therapy, LLC and Meilleur Technologies, Inc., respectively, each a direct subsidiary of Lantheus Holdings; references to “Cerveau,” “Lantheus Real Estate,” “Lantheus Two,” “Lantheus Three” and “Progenics” refer to Cerveau Technologies, Inc.; Lantheus MI Real Estate, LLC; Lantheus Two, LLC; Lantheus Three, LLC; and Progenics Pharmaceuticals, Inc., respectively, each a wholly-owned subsidiary of LMI, and references to “EXINI” refer to EXINI Diagnostics AB, a wholly-owned subsidiary of Progenics. Solely for convenience, the Company refers to trademarks, service marks and trade names without the TM, SM and ® symbols. Those references are not intended to indicate, in any way, that the Company will not assert, to the fullest extent permitted under applicable law, its rights to its trademarks, service marks and trade names.

1. Basis of Presentation

The accompanying unaudited condensed consolidated financial statements include the accounts of Lantheus and have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these condensed consolidated financial statements do not include all of the information and notes required by generally accepted accounting principles in the United States (“U.S. GAAP”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal and recurring adjustments) considered necessary for a fair statement have been included. The results of operations for the three and six months ended June 30, 2024 are not necessarily indicative of the results that may be expected for the year ended December 31, 2024 or any future period.

The condensed consolidated balance sheet at December 31, 2023 has been derived from the audited consolidated financial statements at that date but does not include all the information and notes required by U.S. GAAP for complete financial statements. These condensed consolidated financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and notes thereto included in Item 8 of the Company’s most recent Annual Report on Form 10-K for the year ended December 31, 2023 filed with the Securities Exchange Commission (“SEC”) on February 22, 2024.

Progenics Acquisition

On June 19, 2020 (the “Closing Date”), pursuant to the Amended and Restated Agreement and Plan of Merger, dated as of February 20, 2020 (the “Merger Agreement”), by and among Lantheus Holdings, Plato Merger Sub, Inc., a wholly-owned subsidiary of Lantheus Holdings (“Merger Sub”), and Progenics, Lantheus Holdings completed the acquisition of Progenics by means of a merger of Merger Sub with and into Progenics, with Progenics becoming an indirect subsidiary of Lantheus Holdings following the completion of such merger (the “Progenics Acquisition”).

In connection with the Progenics Acquisition, Lantheus Holdings issued 26,844,877 shares of Lantheus Holdings common stock and 86,630,633 contingent value rights (each a “CVR”) tied to the financial performance of PYLARIFY to former Progenics stockholders and option holders. Each CVR entitled its holder to receive a pro rata share of aggregate cash payments equal to 40% of United States (“U.S.”) net sales generated by PYLARIFY in 2022 and 2023 in excess of $100.0 million and $150.0 million, respectively. The Company’s aggregate payments in respect of the CVRs, together with any other non-stock consideration treated as paid in connection with the Progenics Acquisition, was capped at 19.9% of the total consideration the Company paid in the Progenics Acquisition. Based on the Company’s 2022 PYLARIFY net sales, the Company determined that the aggregate payment obligation under the CVRs was $99.6 million, which was the maximum amount payable. The Company paid out this amount in May 2023 in full satisfaction of the CVRs.

2. Summary of Significant Accounting Policies

Investments

Equity investments with readily determinable fair values for which the Company does not have significant influence over the investee are measured at fair value on a recurring basis. Equity investments without readily determinable fair values for which the Company does not have significant influence over the investee are measured at cost with adjustments for observable changes in price or impairments (referred to as the measurement alternative). For equity investments for which the Company does not have significant influence over the investee, changes in the value of unsold equity investments are recorded in investment in equity securities – unrealized gain (loss). Equity investments for which the Company has significant influence over the investee are measured using the equity method unless the Company elects to apply the fair value option to account for the investment.

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Recent Accounting Pronouncements

In December 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires all public entities, including public entities with a single reportable segment, to provide in interim and annual periods one or more measures of segment profit or loss used by the chief operating decision maker to allocate resources and assess performance. Additionally, the standard requires disclosures of significant segment expenses and other segment items as well as incremental qualitative disclosures. The guidance in this update is effective for fiscal years beginning after December 15, 2023, and interim periods after December 15, 2024. The Company is currently in the process of evaluating the effects of this pronouncement on our related disclosures.

In December 2023, the FASB also issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires enhanced income tax disclosures, including specific categories and disaggregation of information in the effective tax rate reconciliation, disaggregated information related to income taxes paid, income or loss from continuing operations before income tax expense or benefit, and income tax expense or benefit from continuing operations. The requirements of the ASU are effective for annual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently in the process of evaluating the impact of this pronouncement on our related disclosures.

3. Revenue from Contracts with Customers

The following table summarizes revenue by revenue source as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
Major Products/Service Lines (in thousands)	2024		2023		2024		2023
Product revenue, net(1)	$	392,756	$	314,084	$	762,069	$	606,340
License and royalty revenues	1,335		7,616		1,997		16,144
Total revenues	$	394,091	$	321,700	$	764,066	$	622,484

________________________________

(1)The Company’s product revenue includes PYLARIFY and DEFINITY among other products. This category represents the delivery of physical goods. The Company applies the same revenue recognition policies and judgments for all its principal products.

The Company classifies its revenues into three product categories: Radiopharmaceutical Oncology, Precision Diagnostics, and Strategic Partnerships and Other Revenue. Radiopharmaceutical Oncology includes PYLARIFY and AZEDRA. In the first quarter of 2024, the Company discontinued the production of AZEDRA. Precision Diagnostics includes DEFINITY, TechneLite and other diagnostic imaging products. Strategic Partnerships and Other Revenue includes strategic partnerships and other arrangements related to other products of the Company. On August 2, 2023, the Company sold its rights to the RELISTOR net sales royalty asset (the “RELISTOR royalty asset”) under its license agreement with Bausch Health Companies, Inc. (“Bausch”); the Company retained the rights to future sales-based milestone payments.

Revenue by product category on a net basis is as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2024		2023		2024		2023
PYLARIFY	$	273,255	$	210,522	$	532,125	$	405,992
Other radiopharmaceutical oncology	—		818		384		1,535
Total radiopharmaceutical oncology	273,255		211,340		532,509		407,527
DEFINITY	78,100		70,529		154,664		139,353
TechneLite	28,186		21,594		49,900		42,580
Other precision diagnostics	5,825		5,454		11,757		11,261
Total precision diagnostics	112,111		97,577		216,321		193,194
Strategic partnerships and other revenue	8,725		12,783		15,236		21,763
Total revenues	$	394,091	$	321,700	$	764,066	$	622,484

The Company is required to allocate a portion of its revenue received from commercial contracts to future reporting periods to the extent the Company had performance obligations that extended beyond one year. However, the Company’s performance

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obligations are typically part of contracts that have an original expected duration of one year or less. As such, the Company is not disclosing the aggregate amount of the transaction price allocated to performance obligations that are unsatisfied (or partially satisfied) as of the end of the reporting period.

4. Fair Value of Financial Instruments

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. In order to increase consistency and comparability of fair value measurements, financial instruments are categorized based on a hierarchy that prioritizes observable and unobservable inputs used to measure fair value into three broad levels, which are described below:

•Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

•Level 2 — Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.) and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs).

•Level 3 — Unobservable inputs that reflect a Company’s estimates about the assumptions that market participants would use in pricing the asset or liability. The Company develops these inputs based on the best information available, including its own data.

The Company’s financial assets and liabilities measured at fair value on a recurring basis consist of money market funds, contingent consideration liabilities, and equity investments. The Company invests excess cash from its operating cash accounts in overnight investments and reflects these amounts in cash and cash equivalents in the consolidated balance sheets at fair value using quoted prices in active markets for identical assets. The Company recorded the investment securities resulting from the Perspective strategic agreements at fair value and are adjusted for price changes observable in the market. The Company recorded the contingent consideration liabilities resulting from the Progenics Acquisition at fair value based on inputs that are not observable in the market.

The tables below present information about the Company’s assets and liabilities measured at fair value on a recurring basis:


	June 30, 2024
(in thousands)	Total Fair Value		Level 1		Level 2		Level 3
Assets:
Money market funds	$	575,974	$	575,974	$	—	$	—
Investment securities	116,423		116,423		—		—

Total assets	$	692,397	$	692,397	$	—	$	—
Liabilities:
Contingent consideration liabilities	$	2,800	$	—	$	—	$	2,800
Total liabilities	$	2,800	$	—	$	—	$	2,800


	December 31, 2023
(in thousands)	Total Fair Value		Level 1		Level 2		Level 3
Assets:
Money market funds	$	574,131	$	574,131	$	—	$	—


Total assets	$	574,131	$	574,131	$	—	$	—
Liabilities:
Contingent consideration liabilities	$	2,700	$	—	$	—	$	2,700
Total liabilities	$	2,700	$	—	$	—	$	2,700

During the three and six months ended June 30, 2024, there were no transfers into or out of Level 3.

The Company assumed contingent consideration liabilities related to a previous acquisition completed by Progenics in 2013 (“2013 Acquisition”). These contingent consideration liabilities include potential payments of up to $70.0 million if the Company attains certain net sales targets primarily for AZEDRA and 1095 (also known as 131 I-MIP-1095) and a $5.0 million 1095

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commercialization milestone. Additionally, there is a potential payment of up to $10.0 million commercialization milestone related to a prostate cancer product candidate the Company refers to as “1404” that was outlicensed to ROTOP Pharmaka GmbH. The Company’s total potential payments related to the 2013 Acquisition are approximately $85.0 million. The Company considers the contingent consideration liabilities relating to the 2013 Acquisition each a Level 3 instrument (one with significant unobservable inputs) in the fair value hierarchy. The estimated fair value of these was determined based on probability adjusted discounted cash flows and Monte Carlo simulation models that included significant estimates and assumptions pertaining to commercialization events and sales targets. The most significant unobservable inputs with respect to 1095 and 1404 are the probabilities of achieving regulatory approval of those development projects and subsequent commercial success.

Significant changes in any of the probabilities of success, the probabilities as to the periods in which sales targets and milestones will be achieved, discount rates or underlying revenue forecasts would result in a significantly higher or lower fair value measurement. The Company records the contingent consideration liability at fair value with changes in estimated fair values recorded in general and administrative expenses in the condensed consolidated statements of operations. The Company can give no assurance that the actual amounts paid, if any, in connection with the contingent consideration liabilities, will be consistent with any recurring fair value estimate of such contingent consideration liabilities.

The following tables summarize quantitative information and assumptions pertaining to the fair value measurement of liabilities using Level 3 inputs at June 30, 2024.


	Fair Value at						Assumptions
(in thousands)	June 30, 2024		December 31, 2023		Valuation Technique	Unobservable Input	June 30, 2024		December 31, 2023
Contingent consideration liability:



1095 commercialization milestone	1,800		1,800		Probability adjusted discounted cash flow model
						Period of expected milestone achievement	2026		2026
						Probability of success	40	%	40	%
						Discount rate	4.5	%	4.1	%



Net sales targets - AZEDRA and 1095	1,000		900		Monte Carlo simulation
						Probability of success and sales targets	0% - 40%		0% - 40%
						Discount rate	15%		15%
Total	$	2,800	$	2,700

For those financial instruments with significant Level 3 inputs, the following table summarizes the activities for the periods indicated:


	Financial Liabilities
(in thousands)	Six Months Ended June 30,
		2024		2023
Fair value, beginning of period		$	2,700	$	111,600

Changes in fair value included in net income		100		(8,975)
Cash payments		—		(99,625)
Fair value, end of period		$	2,800	$	3,000

The change in fair value of the contingent financial liabilities resulted in an increase of general and administrative expense of $0.1 million for the six months ended June 30, 2024 and was primarily due to the passage of time.

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As of June 30, 2024, the carrying value of the Company’s convertible debt was $575.0 million and the fair value of the Company’s convertible debt was estimated to be approximately $715.1 million based on quoted market prices of these instruments and was classified as a Level 1 measurement within the fair value hierarchy.

5. Income Taxes

The Company calculates income taxes at the end of each reporting period based on the estimated effective tax rate for the full year, adjusted for any discrete events which are recorded in the period they occur. Cumulative adjustments to the tax provision are recorded in the reporting period in which a change in the estimated annual effective tax rate is determined. The Company’s income tax expense and effective tax rate are presented below:


	Three Months Ended June 30,						Six Months Ended June 30,
(in thousands)	2024			2023			2024			2023
Income tax expense	$	22,301		$	29,557		$	62,503		$	21,260
Effective tax rate	26.4		%	23.9		%	24.4		%	18.9		%

The increase in the effective income tax rate for the three and six months ended June 30, 2024 is primarily due to the decrease in the Company’s stock compensation deductions and the change in fair value of our contingent consideration liabilities.

6. Inventory

Inventory consisted of the following:


(in thousands)	June 30, 2024		December 31, 2023
Raw materials	$	29,571	$	31,259
Work in process	20,108		13,807
Finished goods	20,837		18,963
Total inventory	$	70,516	$	64,029

Inventory costs associated with products that have not yet received regulatory approval are capitalized if the Company believes there is probable future commercial use of the product and future economic benefit of the asset. If future commercial use of the product is not probable, then inventory costs associated with such product are expensed during the period the costs are incurred. The Company has no inventory pending regulatory approval as of June 30, 2024.

7. Property, Plant and Equipment, Net

Property, plant and equipment, net, consisted of the following:


(in thousands)	June 30, 2024		December 31, 2023
Land	$	9,480	$	9,480
Buildings	78,040		73,441
Machinery, equipment and fixtures	103,772		102,576
Computer software	52,601		27,259
Construction in progress	26,648		40,964
	270,541		253,720
Less: accumulated depreciation and amortization	(112,383)		(107,023)
Total property, plant and equipment, net	$	158,158	$	146,697

Depreciation and amortization expense related to property, plant and equipment, net, was $4.6 million and $3.3 million for the three months ended June 30, 2024 and 2023, respectively, and $10.0 million and $6.7 million for the six months ended June 30, 2024 and 2023, respectively.

During the three months ended June 30, 2023, as a result of a decline in expected future cash flows related to the AZEDRA marketed intangible asset, the Company determined certain impairment triggers had occurred. The Company reviewed revised undiscounted cash flows that were estimated to be generated by the asset group as of June 30, 2023. Based on the undiscounted cash

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flow analysis, the Company determined that the asset group had net carrying values that exceeded their estimated undiscounted future cash flows. The Company then estimated the fair value of the asset group based on their discounted cash flows. The carrying value exceeded the fair value and as a result, the Company recorded a noncash impairment of $6.0 million for the six months ended June 30, 2023 in cost of goods sold in the condensed consolidated statements of operations.

On January 8, 2024, the Company entered into an agreement with Perspective Therapeutics, Inc. (“Perspective”) to transfer the sublease for the property at 110 Clyde Rd, Somerset, New Jersey (the “Somerset Facility”) and sell the associated assets at the Somerset Facility for $8.0 million. The transfer of the sublease and completion of the asset sale occurred on March 1, 2024. The sale of assets resulted in a derecognition to the right-of-use asset of $0.4 million, the lease liability of $0.4 million and remaining property, plant and equipment of $0.8 million. The Company also incurred commission expense of $1.0 million related to the transaction. The Company recorded a gain of $6.3 million for the six months ended June 30, 2024 within operating income.

See Note 19, "Acquisition of Assets" for further discussion of the Perspective transaction.

Long-Lived Assets Held for Sale

During the first quarter of 2023, the Company committed to a plan to sell a portion of its land and buildings associated with its Billerica, Massachusetts campus. Effective March 16, 2023, the Company entered into a purchase and sale agreement (the “P&S”) with a prospective buyer. The assets were classified as held for sale and comprised entirely of property, plant and equipment, net. The Company determined that the fair value of the net assets being sold exceeded the carrying value as of June 30, 2024. The purchase price for the campus sale is $10.0 million in cash. The transaction is expected to close in 2024.

8. Accrued Expenses, Other Liabilities and Other Long-Term Liabilities

Accrued expenses, other liabilities and other long-term liabilities are comprised of the following:


(in thousands)	June 30, 2024		December 31, 2023
Compensation and benefits	$	30,629	$	36,331
Freight, distribution and operations	85,778		67,529
Accrued rebates, discounts and chargebacks	17,247		16,070
Accrued professional fees	18,819		10,244
Accrued research and development expenses	43,371		3,258
Other	16,799		11,906
Total accrued expenses and other liabilities	$	212,643	$	145,338

Operating lease liabilities (Note 15)	$	54,125	$	54,453
Long-term contingent liabilities (Note 4)	2,800		2,700
Other long-term liabilities	6,618		6,168
Total other long-term liabilities	$	63,543	$	63,321

9. Asset Retirement Obligations

The Company considers its legal obligation to remediate its facilities upon a potential decommissioning of its radioactive-related operations as an asset retirement obligation. The Company has a production facility that manufactures and processes radioactive materials at its North Billerica, Massachusetts site. As of June 30, 2024, the asset retirement liability is measured at the present value of the asset retirement liability expected to be incurred and is approximately $25.1 million.

The following table provides a summary of the changes in the Company’s carrying value of asset retirement obligations:


(in thousands)	Amount
Balance at January 1, 2024	$	22,916
Accretion expense	214

Balance at June 30, 2024	$	23,130

The Company is required to provide the Massachusetts Department of Public Health financial assurance demonstrating the Company’s ability to fund any decommissioning of its North Billerica, Massachusetts production facility in the event of any closure. The Company has provided this financial assurance in the form of a $30.3 million surety bond.

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10. Intangibles, Net

Intangibles, net, consisted of the following:


	June 30, 2024
(in thousands)	Useful Lives (in years)	Amortization Method	Cost		Accumulated Amortization		Net
Trademarks	15 - 25	Straight-Line	$	13,540	$	(12,289)	$	1,251
Customer relationships	15 - 25	Accelerated	157,901		(127,143)		30,758

Currently marketed products	9 - 15	Straight-Line	132,800		(45,655)		87,145
Licenses	11 - 16	Straight-Line	22,233		(10,587)		11,646
Developed technology	7 - 9	Straight-Line	42,706		(1,267)		41,439

Total			$	369,180	$	(196,941)	$	172,239


	December 31, 2023
(in thousands)	Useful Lives (in years)	Amortization Method	Cost		Accumulated Amortization		Net
Trademarks	15 - 25	Straight-Line	$	13,540	$	(12,216)	$	1,324
Customer relationships	15 - 25	Accelerated	157,995		(117,574)		40,421
Currently marketed products	9 - 15	Straight-Line	132,800		(38,277)		94,523
Licenses	11 - 16	Straight-Line	22,233		(7,972)		14,261
Developed technology	9	Straight-Line	2,400		(944)		1,456

Total			$	328,968	$	(176,983)	$	151,985

The Company recorded amortization expense for its intangible assets of $10.2 million and $12.4 million for the three months ended June 30, 2024 and 2023, respectively and $20.1 million and $23.5 million for the six months ended June 30, 2024 and 2023, respectively.

In March 2023, the Company stopped all development activities in relation to a future indication associated with AZEDRA, which was classified as an in-process research and development (“IPR&D”) intangible asset. The asset group, which consisted of the IPR&D asset and a currently marketed product (the “AZEDRA intangible asset group”), was assessed for impairment. The Company considered several factors in estimating the future projections of revenues and cash flows of the AZEDRA intangible asset group as part of the impairment testing. The Company concluded that the carrying amount exceeded the fair value of the AZEDRA intangible asset group, which had no value. The Company recorded a non-cash impairment charge of $15.6 million in research and development expenses relating to the IPR&D asset and $116.4 million in cost of goods sold relating to the currently marketed indication of AZEDRA in the consolidated statement of operations for the quarter ended March 31, 2023.

On August 2, 2023, the Company sold the right to its RELISTOR royalty asset under its license agreement with Bausch; the Company retained the rights to future sales-based milestone payments. The Company received an initial payment of approximately $98.0 million in connection with the sale and has the right to receive an additional payment from the buyer of $5.0 million if worldwide net sales of RELISTOR in 2025 exceed a specified threshold. The additional payment would be recognized upon achievement of the specified threshold. Decreases of $63.6 million of license assets and $17.5 million of associated accumulated amortization, as well as a gain of $51.8 million were recorded as a result of the sale.

On August 15, 2023, the Company announced that it would discontinue the production and promotion of AZEDRA and would be winding down its Somerset Facility. The Company continued manufacturing AZEDRA until the first quarter of 2024 to provide doses of AZEDRA to then-current patients so they could complete their treatment regimen. No AZEDRA was manufactured after March 1, 2024, when the Company transferred the tangible assets and associated lease of its Somerset Facility to Perspective. See Note 7, "Property, Plant and Equipment, Net" for impairment analysis.

In February 2023, the Company entered into an agreement with the stockholders of Cerveau (which holds the rights under a license agreement to develop and commercialize MK-6240) to purchase all of the outstanding capital stock of Cerveau for approximately $35.3 million. In May 2023, upon successful completion of a technology transfer, the Company paid $10.0 million to

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the stockholders of Cerveau (the “Cerveau Stockholders”). This additional contingent payment was capitalized as part of the asset cost and increased the Company’s customer relationship intangible assets. See Note 19, "Acquisition of Assets" for further discussion of the Cerveau acquisition.

In June 2024, the Company entered into an agreement with the stockholders of Meilleur (“Meilleur Stockholders”) to purchase all of the outstanding capital stock of Meilleur (which holds the rights under a license agreement to develop and commercialize NAV-4694) for approximately $32.9 million. The Company recorded a developed technology intangible asset of $40.3 million as a result of the purchase price and the specific assets and liabilities of Meilleur that were acquired as part of the asset acquisition based on their value at the agreed upon closing date. See Note 19, “Acquisition of Assets” for further discussion of the Meilleur acquisition.

The below table summarizes the estimated aggregate amortization expense expected to be recognized on the above intangible assets:


(in thousands)	Amount
Remainder of 2024	$	22,741
2025	30,167
2026	30,965
2027	25,438
2028	21,953
2029 and thereafter	40,975
Total	$	172,239

11. Long-Term Debt, Net, and Other Borrowings

As of June 30, 2024, the Company’s maturities of principal obligations under its long-term debt and other borrowings are as follows:


(in thousands)	Amount
Remainder of 2024	$	—
2025	—
2026	—
2027	575,000


Total principal outstanding	575,000

Unamortized debt issuance costs	(12,174)

Finance lease liabilities	1,230

Total	564,056
Less: current portion	(868)
Total long-term debt, net and other borrowings	$	563,188

2022 Revolving Facility

In December 2022, the Company entered into a $350.0 million five-year revolving credit facility (the “2022 Revolving Facility”). Under the terms of the 2022 Revolving Facility, the lenders are committed to extending credit to the Company from time to time until December 2, 2027 consisting of revolving loans (the “Revolving Loans”) in an aggregate principal amount not to exceed $350.0 million (the “Revolving Commitment”) at any time, including a $20.0 million sub-facility for the issuance of letters of credit (the “Letters of Credit”) and a $10.0 million sub-facility for swingline loans (the “Swingline Loans”). The Revolving Loans, Letters of Credit, and the Swingline Loans, if used, are expected to be used for working capital and for other general corporate purposes.

The Revolving Loans bear interest, with pricing based from time to time at the Company’s election, at (i) the secured overnight financing rate as published by the Federal Reserve Bank of New York on its website plus an applicable margin that ranges from 1.50% to 2.50% based on the Company’s total net leverage ratio or (ii) the alternative base rate plus an applicable margin that ranges from 0.50% to 1.50% based on the Company’s total net leverage ratio. The 2022 Revolving Facility also includes an unused commitment fee at a rate ranging from 0.15% to 0.35% per annum based on the Company’s total net leverage ratio. Interest associated with the unused commitment is recorded to accrued expenses and other liabilities on the condensed consolidated balance sheet and paid out on a quarterly basis.

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The Company is permitted to voluntarily prepay the Revolving Loans, in whole or in part, or reduce or terminate the Revolving Commitment, in each case, without premium or penalty. On any business day on which the total amount of outstanding Revolving Loans, Letters of Credit and Swingline Loans exceeds the total Revolving Commitment, the Company must prepay the Revolving Loans in an amount equal to such excess. The Company is not required to make mandatory prepayments under the 2022 Revolving Facility. As of June 30, 2024, there were no outstanding borrowings under the 2022 Revolving Facility.

The Company has the right to request an increase to the Revolving Commitment in an aggregate principal amount of up to the sum of $335.0 million or consolidated earnings before interest, taxes, depreciation and amortization (“EBITDA”) for the four consecutive fiscal quarters most recently ended, plus additional amounts in certain circumstances (collectively, the “Incremental Cap”), minus certain incremental term loans made pursuant to specified incremental term loan commitments (“Incremental Term Loans”). The Company has the right to request Incremental Term Loans in an aggregate principal amount of up to the Incremental Cap less any incremental increases to the Revolving Commitment. Proceeds of Incremental Term Loans may be used for working capital and for other general corporate purposes and will bear interest at rates agreed between the Company and the lenders providing the Incremental Term Loans.

2022 Facility Covenants

The 2022 Revolving Facility contains a number of affirmative, negative and reporting covenants, as well as financial maintenance covenants pursuant to which the Company is required to be in quarterly compliance, measured on a trailing four quarter basis, with two financial covenants. The minimum interest coverage ratio must be at least 3.00 to 1.00. The maximum total net leverage ratio permitted by the financial covenant is 3.50 to 1.00.

The 2022 Revolving Facility contains usual and customary restrictions on the ability of the Company and its subsidiaries to: (i) incur additional indebtedness (ii) create liens; (iii) consolidate, merge, sell or otherwise dispose of all or substantially all of its assets; (iv) sell certain assets; (v) pay dividends on, repurchase or make distributions in respect of capital stock or make other restricted payments; (vi) make certain investments; (vii) repay subordinated indebtedness prior to stated maturity; and (viii) enter into certain transactions with its affiliates.

Upon an event of default, the Administrative Agent will have the right to declare the loans and other obligations outstanding under the 2022 Revolving Facility immediately due and payable and all commitments immediately terminated.

The 2022 Revolving Facility is guaranteed by Lantheus Holdings, and certain subsidiaries of LMI, including Progenics and Lantheus Real Estate, and obligations under the 2022 Revolving Facility are generally secured by first priority liens over substantially all of the assets of each of LMI, Lantheus Holdings, and certain subsidiaries of LMI, including Progenics and Lantheus Real Estate (subject to customary exclusions set forth in the transaction documents) owned as of December 2, 2022 or thereafter acquired.

Convertible Notes

On December 8, 2022, the Company issued $575.0 million in aggregate principal amount of 2.625% Convertible Senior Notes due 2027 (the “Notes”), which includes $75.0 million in aggregate principal amount of Notes sold pursuant to the full exercise of the initial purchasers’ option to purchase additional Notes. The Notes were issued under an indenture, dated as of December 8, 2022 (the “Indenture”), among the Company, LMI (the “Guarantor”), a wholly owned subsidiary of the Company, as Guarantor, and U.S. Bank Trust Company, National Association, as Trustee. The net proceeds from the issuance of the Notes were approximately $557.8 million after deducting the initial purchasers’ discounts and offering expenses payable by the Company.

The Notes are senior unsecured obligations of the Company. The Notes are fully and unconditionally guaranteed on a senior unsecured basis by the Guarantor. The Notes bear interest at a rate of 2.625% per year, payable semi-annually in arrears on June 15 and December 15 of each year, beginning on June 15, 2023, and will mature on December 15, 2027 unless earlier redeemed, repurchased or converted in accordance with their terms. The initial conversion rate for the Notes is 12.5291 shares of the Company’s common stock per $1,000 in principal amount of Notes (which is equivalent to an initial conversion price of approximately $79.81 per share of the Company’s common stock, representing an initial conversion premium of approximately 42.5% above the closing price of $56.01 per share of the Company’s common stock on December 5, 2022). In no event shall the conversion rate per $1,000 in principal amount of notes exceed 17.8539 shares of the Company’s common stock. Prior to the close of business on the business day immediately preceding September 15, 2027, the Notes may be converted at the option of the holders only upon occurrence of specified events and during certain periods, and thereafter until the close of business on the business day immediately preceding the maturity date, the Notes may be converted at any time. The Company will satisfy any conversion by paying cash up to the aggregate principal amount of the Notes to be converted and by paying or delivering, as the case may be, cash, shares of the Company’s common stock, or a combination of cash and shares of the Company’s common stock, at its election, in respect of the remainder, if any, of its conversion obligation in excess of the aggregate principal amount of the Notes being converted. The Company may redeem for cash all or any portion of the Notes, at its option, on or after December 22, 2025 if the closing sale price per share of the Company’s common stock

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exceeds 130% of the conversion price of the Notes for a specified period of time. The redemption price will be equal to 100% of the principal amount of the Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the redemption date.

The Company evaluated the Notes upon completion of the sale and concluded on the following features:

•Conversion Feature: The Company determined that the conversion feature qualifies for the classification of equity. As a result, the conversion feature should not be bifurcated as a derivative instrument and the Notes were accounted for as a single liability.

•Redemption Features: The redemption features were reviewed within the Notes and the Company determined that the redemption features are closely related to the Notes and as such should not be separately accounted for as a bifurcated derivative instrument.

•Additional Interest Features: The Notes may result in additional interest if the Company fails to timely file any document that the Company is required to file with the SEC pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934. The Company will pay additional interest on the notes at a rate equal to 0.25% to 0.50% per annum based on the principal amount of notes outstanding for each day the Company failure to file has occurred or the notes are not otherwise freely tradable. Further, if the notes are assigned a restricted CUSIP number or the notes are not otherwise freely tradable pursuant to Rule 144 under the Securities Act by holders other than Company affiliates or holders that were Company affiliates at any time during the three months immediately preceding as of the 385th day after the last date of original issuance of the notes, the Company will pay additional interest on the notes at a rate equal to (i) 0.25% to 0.50% per annum based on the principal amount of notes outstanding for each day until the restrictive legend has been removed from the notes, the notes are assigned an unrestricted CUSIP and the notes are freely tradable. The Company concluded that the interest feature is unrelated to the credit risk and should be bifurcated from the Notes, however, the Company assessed the probabilities of triggering events occurring under these features and does not expect to trigger the aforementioned events. These events will continue to be monitored to determine whether the interest feature will be bifurcated if it has value.

As of June 30, 2024, the carrying value of the Notes was $575.0 million, the Notes had an unamortized discount of zero, and the fair value of the liability was $715.1 million. The Company recorded interest expense of approximately $3.8 million and $7.5 million related to the Notes for the three and six months ended June 30, 2024, respectively. There were no conversions of Notes during the six months ended June 30, 2024.

12. Derivative Instruments

The Company has used, but does not currently use, interest rate swaps to reduce the variability in cash flows associated with portions of the Company’s interest payments on variable rate debt.

13. Accumulated Other Comprehensive (Loss) Income

The components of accumulated other comprehensive (loss) income, net of tax of zero for the six months ended June 30, 2024 and 2023 consisted of the following:


(in thousands)	Foreign currency translation		Accumulated other comprehensive (loss)
Balance at January 1, 2024	$	(1,037)	$	(1,037)
Other comprehensive loss before reclassifications	(173)		(173)

Balance at June 30, 2024	$	(1,210)	$	(1,210)

Balance at January 1, 2023	$	(1,259)	$	(1,259)
Other comprehensive income before reclassifications	307		307

Balance at June 30, 2023	$	(952)	$	(952)

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14. Stock-Based Compensation

The following table presents stock-based compensation expense recognized in the Company’s accompanying condensed consolidated statements of operations:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2024		2023		2024		2023
Cost of goods sold	$	2,870	$	2,231	$	5,502	$	3,873
Sales and marketing	3,076		1,959		5,868		4,221
General and administrative	9,768		6,670		17,531		11,072
Research and development	2,765		1,832		4,962		3,193
Total stock-based compensation expense	$	18,479	$	12,692	$	33,863	$	22,359

15. Leases

Operating and finance lease assets and liabilities are as follows:


(in thousands)	Classification	June 30, 2024		December 31, 2023
Assets
Operating	Other long-term assets	$	42,541	$	45,325
Finance	Property, plant and equipment, net	1,427		1,438
Total leased assets		$	43,968	$	46,763
Liabilities
Current
Operating	Accrued expenses and other liabilities	$	2,094	$	1,904
Finance	Current portion of long-term debt and other borrowings	868		823
Noncurrent
Operating	Other long-term liabilities	54,125		54,453
Finance	Long-term debt, net and other borrowings	362		625
Total leased liabilities		$	57,449	$	57,805

On May 4, 2023, the Company entered into a modification to the operating lease for office space in Bedford, Massachusetts (the “Existing Premises”) that was executed in February 2022. The lease commenced and was recorded in December 2022 for $11.0 million and the initial term was set to expire in June 2031. The lease modification includes a lease of additional office and laboratory space at the Bedford location (the “Additional Premises”) for a term of 15 years and 4 months and extends the term of the lease for the Existing Premises to be coterminous with the term of the lease for the Additional Premises. As a result of the extended term for the Existing Premises, the Company recorded an additional right-of-use asset and liability of $6.0 million in May 2023. The modification also contains a provision to convert the rent schedule of the Existing Premises from gross to triple net in 2024, which may result in an additional adjustment to the right-of-use asset and liability. In September 2023, the landlord provided notice to the Company that its renovations of the Additional Premises were completed. As a result of the notice, the Company recorded an additional right-of-use asset and liability of $23.5 million as of September 1, 2023. To determine the value of the additional right-of-use asset and liability, the Company was required to calculate the discount rate of the lease modification. The discount rate was determined based on the expected lease term and by comparing interest rates in the market for similar borrowings with comparable credit quality of the Company. The lease for the Additional Premises allows for the extension of five years to begin immediately upon the expiration of the original term.

On March 1, 2024, the Company transferred the sublease and completed the asset sale of the Somerset Facility. See Note 7, "Property, Plant and Equipment, Net" for further discussion on the sublease transfer.

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Other information related to leases were as follows:


	June 30, 2024	December 31, 2023
Weighted-average remaining lease term (Years):
Operating leases	13.2	13.5
Finance leases	2.4	2.3
Weighted-average discount rate:
Operating leases	7.4%	7.3%
Finance leases	7.4%	6.2%

16. Net Income Per Common Share

A summary of net income per common share is presented below:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except per share amounts)	2024		2023		2024		2023
Net income	$	62,073	$	94,131	$	193,139	$	91,324

Basic weighted-average common shares outstanding	69,356		68,371		69,056		68,062
Effect of dilutive stock options	256		399		246		391
Effect of dilutive restricted stock	989		1,447		1,062		1,504
Effect of convertible notes	—		797		—		—
Diluted weighted-average common shares outstanding	70,601		71,014		70,364		69,957

Basic income per common share	$	0.89	$	1.38	$	2.80	$	1.34
Diluted income per common share	$	0.88	$	1.33	$	2.74	$	1.31

Antidilutive securities excluded from diluted net income per common share	845		349		1,219		389

Impact of the Convertible Notes

The Company considered whether the Notes are participating securities through the two-class method. Per the terms of the Notes’ agreement, the Company determined that if a cash dividend is paid that is greater than the then stock price, the holder of Notes will receive cash on an if-converted basis. While this feature is considered to be a participating right, basic earnings per share is only impacted if the Company’s earnings exceeds the current share price, regardless of whether such dividend is declared. During the three and six months ended June 30, 2024 and 2023, no such dividend was declared. In addition, the Company is required to settle the principal amount of the Notes in cash upon conversion, and therefore, the Company uses the if-converted method for calculating any potential dilutive effect of the conversion option on diluted net income per share, if applicable, unless the application of the two-class method is dilutive. The conversion option has a dilutive impact on net income per share of Common Stock when the average price per share of the Company's common stock for a given period exceeds the conversion price of the Notes of $79.81 per share.

17. Other Income

Other income consisted of the following:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2024		2023		2024		2023
Foreign currency (gain) loss	$	455	$	(224)	$	238	$	22
Tax indemnification income, net	—		(232)		—		(328)
Interest income	(8,924)		(4,027)		(17,472)		(7,550)

Other	(575)		1		(598)		143
Total other income, net	$	(9,044)	$	(4,482)	$	(17,832)	$	(7,713)

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18. Commitments and Contingencies

Legal Proceedings

From time to time, the Company is a party to various legal proceedings arising in the ordinary course of business. In addition, the Company has in the past been, and may in the future be, subject to investigations by governmental and regulatory authorities, which expose it to greater risks associated with litigation, regulatory or other proceedings, as a result of which the Company could be required to pay significant fines or penalties. The costs and outcome of litigation, regulatory or other proceedings cannot be predicted with certainty, and some lawsuits, claims, actions or proceedings may be disposed of unfavorably to the Company and could have a material adverse effect on the Company’s results of operations or financial condition. In addition, intellectual property disputes often have a risk of injunctive relief which, if imposed against the Company, could materially and adversely affect its financial condition or results of operations. If a matter is both probable to result in material liability and the amount of loss can be reasonably estimated, the Company estimates and discloses the possible material loss or range of loss. If such loss is not probable or cannot be reasonably estimated, a liability is not recorded in its condensed consolidated financial statements.

As of June 30, 2024, the Company did not have any material ongoing litigation to which the Company was a party. On January 26, 2024, the Company was sued in the United States District Court for the District of Delaware by Advanced Accelerator Applications USA, Inc. and Advanced Accelerator Applications SA, each a Novartis entity, for patent infringement in response to the filing of the Company’s Abbreviated New Drug Application (“ANDA”) and Paragraph IV certification in connection with PNT2003, consistent with the process established by the Hatch-Waxman Act. Because the outcome of litigation is uncertain, the Company cannot predict how or when this matter will ultimately be resolved.

19. Acquisition of Assets

On February 6, 2023, the Company acquired Cerveau. Cerveau holds the rights under a license agreement to develop and commercialize MK-6240, an investigational second-generation F 18-labeled positron emission tomography (“PET”) imaging agent that targets Tau tangles in Alzheimer’s disease. The Company determined that upon review of the Cerveau acquisition, the transaction did not meet the definition of a business combination and is therefore treated as an asset acquisition.

In February 2023, the Company made an upfront payment of approximately $35.3 million to the Cerveau Stockholders (the “Selling Stockholders”) and paid the Selling Stockholders an additional $10.0 million in May 2023 upon the successful completion of a technology transfer. The Company could pay up to an additional $51.0 million in milestone payments upon achievement of specified U.S. regulatory milestones related to MK-6240. The Selling Stockholders are also eligible to receive up to $1.2 billion in sales milestone payments upon the achievement of specified annual commercial sales thresholds of MK-6240 in the event the Company pursues commercialization, as well as up to $13.5 million in research revenue milestones upon achievement of specified annual research revenue thresholds. Additionally, the Company will pay to the Selling Stockholders up to double-digit royalty payments for research revenue and commercial sales. Research revenue is derived from existing partnerships with pharmaceutical companies that use MK-6240 in clinical trials. The purchase agreement pursuant to which the Company purchased Cerveau specified, among other things, that certain Selling Stockholders provide transition and clinical development services for a prescribed time following the closing of the transaction.

On January 8, 2024, the Company entered into an agreement with Perspective to participate in the next qualified financing to purchase shares of Perspective common stock (“Perspective Shares”). On January 22, 2024, the Company purchased 56,342,355 Perspective Shares, representing 11.39% of the outstanding shares of Perspective common stock, at the fair market offering price of $0.37 per share. Included within the agreement is a covenant which allows for the Company to designate one observer to Perspective’s board of directors. The observer has the option to attend any or all board meetings in a nonvoting capacity and the right to receive any board materials, except under certain instances where attorney-client privilege is necessary, where the material relates to business or contractual relationship with the Company, to avoid bona fide conflict of interest, exposure of trade secrets or relating to a change of control transaction. The Company also purchased 60,431,039 Perspective Shares at a fair market purchase price of $0.95 per share as an investor in a private placement transaction on March 6, 2024, which resulted in the Company holding a cumulative 19.90% of the outstanding Perspective Shares (or 17.35% on a fully diluted basis) after giving effect to the closing of the private placement transaction. The Company does not have the ability to exercise significant influence over operating and financial policies of Perspective because the Company’s board observer has no voting rights and there is otherwise no participation in policy-making processes, no interchange of managerial personnel, and no sharing of technology between the Company and Perspective.

Also effective January 8, 2024, the Company obtained the following options and rights from Perspective for an aggregate upfront payment of $28.0 million in cash:

•An exclusive option from Perspective to negotiate for an exclusive license under the rights of Perspective and its affiliates to Perspective’s Pb212-VMT-⍺-NET, a clinical stage alpha therapy developed for the treatment of neuroendocrine tumors, to develop, manufacture, commercialize and otherwise exploit the VMT-α-NET Product.

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•A right to co-fund the investigational new drug application (“IND”) enabling studies for early-stage therapeutic candidates targeting prostate-specific membrane antigen and gastrin releasing peptide receptor and, prior to IND filing, a right to negotiate for an exclusive license to such candidates.

•A right of first offer and last look protections for any third party merger and acquisition transactions involving Perspective for a twelve-month period.

Costs of IPR&D projects acquired as part of an asset acquisition that have no alternative future use are expensed when incurred, and therefore, a charge of $28.0 million was recognized in research and development expenses during the three months ended March 31, 2024.

Also effective January 8, 2024, the Company entered into an agreement with Perspective to transfer the Somerset Facility and the associated assets at the Somerset Facility for $8.0 million. The transfer of the sublease and completion of the asset sale occurred on March 1, 2024 at which time the Company had no further continuing legal obligations related to the lease. See Note 7, "Property, Plant and Equipment, Net" for additional details.

On June 14, 2024 Perspective effected a 1-for-10 reverse stock split, after which the Company held 11,677,339 shares of Perspective’s common stock.

On June 15, 2024, the Company entered into an agreement with Radiopharm Theranostics Limited (“Radiopharm”) to acquire all of Radiopharm’s rights to two licensed preclinical assets for an upfront payment of $2.0 million. The Company acquired global exclusive rights to both an LRRC15-targeted monoclonal antibody referred to as DUNP19 and to a Trophoblast cell surface antigen 2 (“TROP2”)-targeted nanobody. LRRC15 is a potential first-in-class, highly specific monoclonal antibody radio-conjugate with both Orphan Drug and Rare Pediatric Disease designations from the FDA for the treatment of osteosarcoma. The agent is designed to target the surrounding tumor micro-environment cells expressing the protein potentially treating a broad range of cancers. The TROP2-targeted nanobody radio-conjugate is designed to target TROP2, an intracellular calcium signal transducer that is overexpressed in various types of adenocarcinomas with minimal expression in normal tissues and is associated with tumor aggressiveness, poor prognosis and drug resistance.

In connection with this acquisition, the Company is assuming the underlying license agreements related to the two preclinical assets, together with their respective milestone and royalty payment obligations. The Company could pay up to an additional $20.0 million in milestone payments upon achievement of specified regulatory milestones. The Company could also pay up to an additional $6.5 million in sales milestone payments upon the achievement of specified annual commercial sales thresholds in the event the Company pursues commercialization as well as royalty payments for commercial sales. Costs of IPR&D projects acquired as part of an asset acquisition that have no alternative future use are expensed when incurred, and therefore, a charge of $2.0 million was recognized in research and development expenses during the three months ended June 30, 2024.

The Company also entered an agreement with Radiopharm to make an initial equity investment of approximately $5.0 million to purchase 149,625,180 Radiopharm shares at the fair market offering price of $0.03 per share. Included within the agreement is an option to invest an additional $5.0 million within six months on the same terms which would result in the Company purchasing approximately an additional 149,925,040 Radiopharm shares. The aforementioned agreement is predicated on the approval of Radiopharm’s shareholder vote that is expected to occur in the third quarter of 2024.

On June 18, 2024, the Company acquired Meilleur, including its investigational asset NAV-4694, an F 18-labeled PET imaging agent that targets beta amyloids in Alzheimer’s disease. The Company determined that upon review of the Meilleur acquisition, the transaction did not meet the definition of a business combination and is therefore treated as an asset acquisition.

The Company made an upfront payment of approximately $32.9 million to the Meilleur Stockholders on June 18, 2024 and expects to pay an additional $10.0 million upon successful completion of a technology transfer. The Company could pay up to an additional $43.0 million in milestone payments upon achievement of specified U.S. regulatory milestones related to NAV-4694. The Meilleur Stockholders are also eligible to receive up to $830.0 million in sales milestone payments upon the achievement of specified annual commercial sales thresholds of NAV-4694 in the event the Company pursues commercialization as well as up to $5.0 million in research milestones upon achievement of specified clinical studies at academic institutions thresholds. Research revenue is derived from existing partnerships with pharmaceutical companies and academic institutions that use NAV-4694 in clinical trials. Additionally, the Company could pay the Meilleur Stockholders up to double-digit royalty payments for research revenue and, in the event the Company pursues commercialization, commercial sales. Certain members of the Meilleur Stockholders will also provide transition and clinical development services for a prescribed time following the closing of the transaction for a fair market value fee.

On June 27, 2024, the Company announced it had acquired the global rights to Life Molecular Imaging’s RM2, which targets the gastrin-releasing peptide receptor (GRPR), including the associated novel, clinical-stage radiotherapeutic and radiodiagnostic pair,

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referred to as 177Lu-DOTA-RM2 and 68Ga-DOTA-RM2, for an upfront payment of $35.0 million plus a $1.0 million payment made prior to the close date. The Company could pay up to an additional 132.5 million Euros in regulatory milestone payments upon achievement of clinical trial thresholds and approvals in different regions. The Company could pay up to 280.0 million Euros in sales milestone payments upon the achievement of specified annual commercial sales threshold of RM2 in the event the Company pursues commercialization. Additionally, the Company could pay up to 25.0 million Euros for collaboration payments inclusive of all costs including employee costs, payments due to Universities, out-of-pocket expenses and services costs, as well as up to 5.0 million Euros for any additional development services performed by Life Molecular Imaging during the 24-month period immediately following the close date. Costs of IPR&D projects acquired as part of an asset acquisition that have no alternative future use are expensed when incurred, and therefore, a charge of $36.0 million was recognized in research and development expenses during the three months ended June 30, 2024.

Global rights are exclusive for therapeutic fields in all countries and diagnostic fields in the Americas and co-exclusive with Life Molecular Imaging for diagnostic fields outside of the Americas. 68Ga-DOTA-RM2 targets cancers overexpressing GRPR, such as prostate, breast, lung, pancreatic, colorectal, gastric and ovarian cancers and has been extensively studied in various tumor types.

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Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations

Cautionary Note Regarding Forward-Looking Statements

Some of the statements contained in this Quarterly Report on Form 10-Q are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). These forward-looking statements, including, in particular, statements about our plans, strategies, prospects and industry estimates are subject to risks and uncertainties. These statements identify prospective information and can generally be identified by words such as “believes,” “can,” “could,” “designed,” “estimates,” “expects,” “impact,” “intends,” “launch,” “likely,” “may,” “pipeline,” “plans,” “potential,” “predict,” “seek,” “should,” “target,” “will,” “would” and similar expressions, or by express or implied discussions regarding potential marketing approvals or new indications for the collaborations, product candidates or approved products described in this Quarterly Report on Form 10-Q, or regarding potential future revenues from such collaborations, product candidates and approved products. Examples of forward-looking statements include statements we make relating to our outlook and expectations including, without limitation, in connection with: (i) continued market expansion and penetration for our established commercial products, particularly PYLARIFY and DEFINITY, in a competitive environment in which other imaging agents have been approved and are being commercialized, and our ability to clinically and commercially differentiate our products; (ii) our ability to have third parties manufacture our products and our ability to manufacture DEFINITY in our in-house manufacturing facility; (iii) the global availability of Molybdenum-99 (“Mo-99”) and other raw material and key components; (iv) our strategies, future prospects, and our projected growth, including revenue related to our collaboration agreements with POINT, including our ability to obtain U.S. Food and Drug Administration (“FDA”) approval for PNT2002 and PNT2003; (v) our ability to satisfy our obligations under our existing clinical development partnerships using MK-6240 or NAV-4694 as a research tool and under the license agreements through which we have rights to MK-6240 and NAV-4694, and to further develop and commercialize MK-6240 and NAV-4694 as approved products; (vi) our ability to successfully execute on our agreements with Perspective, including finalizing the license agreements in the event we exercise our options to do so, the value of our current and any future equity interest in Perspective, and Perspective’s ability to successfully develop its alpha-particle therapy and innovative platform technology; (vii) the efforts and timing for clinical development, regulatory approval, adequate coding, coverage and payment and successful commercialization of our product candidates and new clinical applications and territories for our products, in each case, that we or our strategic partners may undertake; and (viii) our ability to identify and acquire or in-license additional diagnostic and therapeutic product opportunities in oncology, Alzheimer’s disease and other strategic areas and continue to grow and advance our pipeline of products. Forward-looking statements are based on our current expectations and assumptions regarding our business, the economy and other future conditions. Because forward-looking statements relate to the future, such statements are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict. Our actual results may differ materially from those contemplated by the forward-looking statements. These statements are neither statements of historical fact nor guarantees or assurances of future performance. The matters referred to in the forward-looking statements contained in this Quarterly Report on Form 10-Q may not in fact occur. We caution you, therefore, against relying on any of these forward-looking statements. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those described in Part I, Item 1A, "Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2023, and in Part II, Item 1A. “Risk Factors” in this Quarterly Report on Form 10-Q.

Any forward-looking statement made by us in this Quarterly Report on Form 10-Q speaks only as of the date on which it is made. Factors or events that could cause our actual results to differ may emerge from time to time, and it is not possible for us to predict all of them. We undertake no obligation to publicly update any forward-looking statement, whether as a result of new information, future developments or otherwise, except as may be required by law.

Available Information

Our global Internet site is www.lantheus.com. We routinely make available important information, including copies of our Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q, Current Reports on Form 8-K and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act, as soon as reasonably practicable after those reports are electronically filed with, or furnished to, the SEC, free of charge on our website at investor.lantheus.com. We recognize our website as a key channel of distribution to reach public investors and as a means of disclosing material non-public information to comply with our disclosure obligations under SEC Regulation FD. Information contained on our website shall not be deemed incorporated into, or to be part of this Quarterly Report on Form 10-Q, and any website references are not intended to be made through active hyperlinks.

Our reports filed with, or furnished to, the SEC are also available on the SEC’s website at www.sec.gov, and for Annual Reports on Form 10-K and Quarterly Reports on Form 10-Q, in an iXBRL (Inline Extensible Business Reporting Language) format. iXBRL is an electronic coding language used to create interactive financial statement data over the Internet. The information on our website is neither part of nor incorporated by reference into this Quarterly Report on Form 10-Q.

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The following discussion and analysis of our financial condition and results of operations should be read together with the condensed consolidated financial statements and the related notes included in Item 1 of this Quarterly Report on Form 10-Q as well as the other factors described in Part I, Item 1A. “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2023, and in Part II, Item 1A. “Risk Factors” in this Quarterly Report on Form 10-Q.

Overview

Our Business

We are the leading radiopharmaceutical-focused company, delivering life-changing science to enable clinicians to Find, Fight and Follow disease to deliver better patient outcomes. We classify our products in three categories: Radiopharmaceutical Oncology, Precision Diagnostics, and Strategic Partnerships and Other Revenue. Our Radiopharmaceutical Oncology products help healthcare professionals (“HCPs”) Find, Fight and Follow cancer. Our leading Precision Diagnostic products assist HCPs to Find and Follow diseases, with a focus in cardiology. Our Strategic Partnerships focus on enabling precision medicine through the use of biomarkers, digital solutions, and pharma solutions platforms.

Our commercial products are used by cardiologists, internal medicine physicians, nuclear medicine physicians, oncologists, radiologists, sonographers, technologists, and urologists working in a variety of clinical settings. We believe that our diagnostic products provide diagnostic information that enables HCPs to better detect and characterize, or rule out, disease, with the potential to achieve better patient outcomes, reduce patient risk, and limit overall costs.

We produce and market our products throughout the United States (the “United States” or the “U.S.”), selling primarily to hospitals, independent diagnostic testing facilities, and radiopharmacies. We sell our products outside the U.S. through a combination of direct distribution in Canada and third-party distribution relationships in Europe, Canada, Australia, Asia-Pacific, Central America, and South America.

Our executive offices are located in Bedford, Massachusetts, with additional offices in North Billerica, Massachusetts; Montreal, Canada; and Lund, Sweden.

Recent Developments

Exclusive License for RM2

On June 27, 2024,we announced we had acquired the global rights to Life Molecular Imaging’s clinical stage RM2, which targets the GRPR, including the associated novel, clinical-stage radiotherapeutic and radiodiagnostic pair, referred to as 177Lu-DOTA-RM2 and 68Ga-DOTA-RM2, for an upfront payment of $35.0 million plus a $1.0 million payment made prior to the close date, and potential regulatory milestone payments plus royalties (the “Life Molecular Asset Purchase”). GRPR is a member of the bombesin G protein-coupled receptor family, which has been found to be overexpressed in multiple cancers, including prostate, breast and lung. First-in-human dosimetry showed a favorable safety and dosimetry profile and confirmed preclinical data demonstrating dose-dependent efficacy of 177Lu-DOTA-RM2. We intend to begin a Phase 1/2a study with 177Lu-DOTA-RM2 in prostate cancer patients in 2025. We expect 68Ga-DOTA-RM2 will be used as a companion diagnostic.

For more information, see Note 19, "Acquisition of Assets" in our consolidated financial statements herein.

Acquisition of NAV-4694

On June 18, 2024, we acquired Meilleur, including its asset NAV-4694, an investigational F 18-labeled PET imaging agent that targets beta amyloids in Alzheimer’s disease. Under the terms of the agreement, we paid the Meilleur Stockholders an upfront payment of $32.9 million and potentially will pay additional development and commercial milestone payments. Additionally, we will pay double-digit royalty payments for research revenue and, in the event the Company pursues commercialization, commercial sales. Research revenue is derived from existing partnerships with pharmaceutical companies and academic institutions that use NAV-4694 in clinical trials. Pursuant to the terms of the stock purchase agreement pursuant to which we purchased Meilleur, certain members of the Meilleur Stockholders will also provide transition and clinical development services for a prescribed time following the closing of the transaction.

In 2023, Meilleur announced its collaboration with the National Institute on Aging-sponsored study called the Consortium for Clarity in ADRD Research Through Imaging (CLARiTI) that enables the consortium to use NAV-4694 in its investigation of Alzheimer’s disease and related dementias.

For more information, see Note 19, "Acquisition of Assets" in our consolidated financial statements herein.

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Exclusive License for Radiopharm Theranostics Limited

On June 15, 2024, we entered into an agreement with Radiopharm Theranostics Limited (“Radiopharm”) to acquire all of Radiopharm’s global, exclusive rights to two licensed preclinical assets for an upfront payment of $2.0 million (the “Radiopharm Asset Purchase”). We acquired global, exclusive rights to both a Trophoblast cell surface antigen 2 (“TROP2”) targeting nanobody, a preclinical stage therapy developed for the treatment of prostate tumors, and to a monoclonal antibody that targets LRRC15, a preclinical therapeutic candidate targeting prostate cancer. In connection with this acquisition, we are assuming the underlying license agreements related to the two preclinical assets, together with their respective milestone and royalty payment obligations.

For more information, see Note 19, "Acquisition of Assets" in our consolidated financial statements herein.

CEO Succession

On March 1, 2024, Brian Markison, our then Chair of the Board, became our Chief Executive Officer, and Mary Anne Heino, our then Chief Executive Officer, retired and became the Chair of the Board. As part of this leadership transition, Mr. Markison assumed the role of Executive Chair of the Board as of January 23, 2024 until the effectiveness of his Chief Executive Officer appointment in March, and Board Member Julie McHugh became Lead Independent Director.

Strategic Agreements with Perspective Therapeutics

On January 8, 2024, we entered into multiple strategic agreements with Perspective, a radiopharmaceutical company that is pursuing advanced treatment applications for cancers throughout the body. Under the agreements, we obtained an option to exclusively license Perspective’s Pb212-VMT- ⍺-NET, a clinical stage alpha therapy in development for the treatment of neuroendocrine tumors, and an option to co-develop certain early-stage therapeutic candidates targeting prostate cancer using Perspective’s innovative platform technology for an aggregate upfront payment of $28.0 million in cash. We also agreed to purchase up to 19.99% of Perspective’s outstanding shares of common stock, subject to Perspective’s completion of a qualified third-party financing transaction and certain other closing conditions. In addition, Perspective agreed to acquire the assets and associated lease of our Somerset Facility.

On January 22, 2024, Lantheus Alpha purchased 56,342,355 shares of Perspective’s common stock at a purchase price of $0.37 per share in a private placement transaction for approximately $20.8 million resulting in an ownership of 11.39%. The agreement also provided us with certain pro rata participation rights to maintain our ownership position in Perspective in the event that Perspective makes any public or non-public offering of any equity or voting securities, subject to certain exceptions.

On March 1, 2024, our subsidiary, Progenics, transferred the fixed assets and associated lease of our Somerset Facility to Perspective, and the parties entered into a transition services arrangement pursuant to which we will provide Perspective certain services relating to final disposal of radioactive waste and certain other related services.

On March 6, 2024, we exercised our right to purchase additional shares of Perspective’s common stock by purchasing 60,431,039 shares at a price of $0.95 per share. The total consideration for this additional purchase was approximately $57.4 million, resulting in Lantheus Alpha holding approximately 19.90% of the outstanding Perspective common stock (or 17.35% on a fully diluted basis) as of March 6, 2024.

On June 14, 2024, Perspective effected a 1-for-10 reverse stock split, after which we held 11,677,339 shares of Perspective’s common stock.

For more information, see Note 19, "Acquisition of Assets" in our consolidated financial statements herein.

Exclusive License for PNT2002 and PNT2003

On December 20, 2022, we announced the closing of a set of strategic collaborations with POINT, in which we were granted a license to exclusive worldwide rights (excluding Japan, South Korea, China (including Hong Kong, Macau and Taiwan), Singapore and Indonesia) to co-develop and commercialize POINT’s PNT2002 and PNT2003 product candidates. PNT2002 is a PSMA-targeted radiopharmaceutical therapy in development for the treatment of metastatic castration-resistant prostate cancer (“mCRPC”). PNT2003 is a somatostatin receptor (“SSTR”) therapy with non-carrier added lutetium-177, which is in registration to treat patients with SSTR-positive neuroendocrine tumors.

On December 27, 2023, Eli Lilly and Company announced the completion of its acquisition of POINT. The acquisition has not impacted the status of the license agreements related to these product candidates or the work being performed in connection with those license agreements and our collaboration with POINT.

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PNT2002

With respect to PNT2002, POINT is generally responsible for funding and development activities required for FDA approval, including generating all clinical and nonclinical data, analysis and other information, and we are responsible for preparing for and seeking regulatory approval, as well as performing and funding all future development and commercialization following such approval. POINT will be responsible for all manufacturing of PNT2002, subject to certain exceptions described in the license and collaboration agreement between Lantheus Two and POINT, dated November 11, 2022 (the “PNT2002 License Agreement”).

In April 2023, we announced with POINT that the FDA had granted Fast Track designation for PNT2002. Fast Track is a process designed to facilitate the development and expedite the review of drugs to treat serious conditions and address unmet needs.

On December 18, 2023, we announced positive topline results from the Phase 3 registrational clinical trial for PNT2002 (“SPLASH”). SPLASH is designed to evaluate the efficacy and safety of PNT2002 in patients with mCRPC who have progressed following treatment with an androgen receptor pathway inhibitor (“ARPI”). The SPLASH trial met its primary endpoint, demonstrating a median radiographic progression-free survival (rPFS) per blinded independent central review of 9.5 months for patients treated with PNT2002, compared to 6.0 months for patients treated with ARPI in the control arm, a statistically significant 29% reduction in the risk of radiographic progression or death (hazard ratio (“HR”) 0.71; p=0.0088). At the time of the analysis, interim overall survival (“OS”) results were immature (46% of protocol-specified target OS events reached), and the HR was 1.11. We plan to analyze overall survival data when it has matured to 75% of protocol-specified target OS events, which we expect to occur in the third quarter of 2024.

PNT2002 demonstrated a favorable safety profile with grade ≥3 treatment-emergent adverse events (TEAEs) per Common Terminology Criteria for Adverse Events, serious TEAEs, and TEAEs leading to discontinuation occurring at lower rates in the PNT2002 arm than in the control arm (30.1%, 17.1%, and 1.9% versus 36.9%, 23.1%, and 6.2%, respectively).

The open-label study randomized 412 patients with PSMA-expressing mCRPC who had progressed on ARPI therapy and either refused or were not eligible for chemotherapy, in a 2:1 randomization ratio. At the time of the analysis, 84.6% of patients who experienced progressive disease in the control arm subsequently crossed over to receive PNT2002. SPLASH was conducted across the U.S., Canada, Europe, and the United Kingdom. Eighty percent of SPLASH patients resided in North America and approximately ten percent of all participants were Black or African American.

We have established an Expanded Access Program, (“EAP”), for PNT2002, and the first patients began treatment during the first quarter of 2024. EAPs, which are also referred to as compassionate use programs, provide a potential pathway for patients with serious or life-threatening conditions to gain access to an investigational drug for treatment outside of a clinical trial.

In June of 2024, Endocycte, Inc., Novartis and Purdue Research Foundation sued POINT and Eli Lilly and Co alleging that POINT’s manufacturing and sale of PNT2002 infringes an Endocyte patent that discloses PSMA-binding conjugates useful for delivery targeted therapeutic, diagnostic and imaging agents, including radiopharmaceuticals.

PNT2003

With respect to PNT2003, POINT is responsible for curating all data, analysis and other information necessary for regulatory approval, and supporting us in the preparation of regulatory filings. We are responsible for preparing for and seeking regulatory approval of all such applications, as well as performing and funding all future development and commercialization following such approval. POINT will be responsible for all manufacturing of PNT2003, subject to certain exceptions described in the license and collaboration agreement between Lantheus Three and POINT, dated November 11, 2022 (the “PNT2003 License Agreement”).

On January 11, 2024, we announced that our ANDA for PNT2003 had been accepted for filing by the FDA. On January 26, 2024, we were sued in the District Court for the District of Delaware by Advanced Accelerator Applications USA, Inc. and Advanced Accelerator Applications SA, each a Novartis entity, for patent infringement in response to our ANDA filing and Paragraph IV certification, consistent with the process established by the Hatch-Waxman Act. Under the terms of the Hatch-Waxman Act, FDA approval of our ANDA filing could be subject to a stay of up to 30-months. If our filing is stayed for the full 30-month period and we are successful in obtaining FDA approval, pending successful resolution of the Hatch-Waxman litigation, we would expect to launch PNT2003 in 2026, although there can be no assurance of that approval or timing. Based on the most recent update to the FDA’s online paragraph IV database listings, we believe we are the first applicant to have filed a substantially complete ANDA for Lutetium Lu 177 Dotatate containing a Paragraph IV certification under the provisions of the Hatch-Waxman Act. As the first applicant, if our ANDA is approved, we believe we will be eligible for 180 days of generic marketing exclusivity in the U.S.

For more information, see Note 19, "Acquisition of Assets" in our consolidated financial statements included herein.

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MK-6240

On February 6, 2023, we acquired Cerveau. Cerveau holds the rights under a license agreement to develop and commercialize MK-6240, an investigational second-generation F 18-labeled PET imaging agent that targets Tau tangles in Alzheimer’s disease. Under the terms of the purchase agreement, we paid the Selling Stockholders an upfront payment of $35.3 million in February 2023 and an additional $10.0 million in May 2023 upon the successful completion of a technology transfer. The Selling Stockholders are also eligible to receive additional development and, in the event the Company pursues commercialization, commercial milestone payments. We will pay double-digit royalty payments for research revenue and commercial sales. Research revenue is derived from existing partnerships with pharmaceutical companies that use MK-6240 in clinical trials and includes milestone and dose-related payments. Pursuant to the terms of the purchase agreement for Cerveau, certain Selling Stockholders also provided transition and clinical development services for a prescribed time following the closing of the transaction.

In September 2023, MK-6240 was granted Fast Track designation by the FDA. In February 2024, we announced the inclusion of MK-6240 in the National Institute on Aging-sponsored study called CLARiTI that enables the consortium to use MK-6240 in its investigation of Alzheimer’s disease and related dementias. The CLARiTI study will involve all 37 Alzheimer’s Disease Research Centers in the United States which will recruit 2,000 subjects and collect their imaging and blood-based biomarker data to generate etiologic profiles for cases of mixed dementia.

Recently, we held a pre-NDA meeting with the FDA and we expect to submit an NDA for MK-6240 in 2025, but we can provide no assurance that we will meet that expected timeline, that our NDA will be accepted by the FDA, that MK-6240 will be approved by the FDA or that we will be successful in commercializing MK-6240.

For more information, see Note 19, "Acquisition of Assets" in our consolidated financial statements included herein.

Sale of RELISTOR Licensed Intangible Asset Associated with Net Sales Royalties

On August 2, 2023, we sold the right to our RELISTOR royalty asset, which is classified as a licensed intangible asset; we retained the rights to future sales-based milestone payments. We received an initial payment of approximately $98.0 million in connection with the sale and we have the right to receive an additional payment from the buyer of $5.0 million if worldwide net sales of RELISTOR in 2025 exceed a specified threshold. The additional payment would be recognized upon achievement of the specified threshold. Decreases of $63.6 million of license assets and $17.5 million of associated accumulated amortization, as well as a gain of $51.8 million were recorded as a result of the sale. During the fourth quarter of 2023, the Company earned a $15.0 million sales-based milestone payment.

For more information, see Note 10, "Intangibles, Net" in our consolidated financial statements included herein.

Discontinuation of AZEDRA

On August 15, 2023, we announced that we would discontinue the production and promotion of AZEDRA and wind down our Somerset Facility. We continued manufacturing AZEDRA during the first quarter of 2024, to provide doses of AZEDRA to then-current patients so they could complete their treatment regimen. No AZEDRA was manufactured after March 1, 2024, when we transferred the assets and associated sublease of our Somerset Facility to Perspective.

For more information, see Note 10, "Intangibles, Net" in our consolidated financial statements included herein.

Key Factors Affecting Our Results

Our business and financial performance have been, and continue to be, impacted by the following:

Continued Growth of PYLARIFY

PYLARIFY, an F 18-labeled PET imaging agent targeting PSMA, was approved by the FDA in May 2021 and commercially launched in the U.S. in June 2021. PYLARIFY is indicated for PET imaging of PSMA-positive lesions in men with prostate cancer with suspected metastasis who are candidates for initial definitive therapy and in men with suspected recurrence based on elevated PSA levels. Both the National Comprehensive Cancer Center guidelines and the Society for Nuclear Medicine and Molecular Imaging appropriate use criteria note that PSMA PET imaging agents, including PYLARIFY, can be used for patient selection for PSMA-targeted radioligand therapy. PYLARIFY is available through a diverse, multi-partner network of PET manufacturing facilities (“PMFs”), including both commercial and academic partners.

The successful growth of PYLARIFY is dependent on our ability to sustain PYLARIFY as the leading PSMA PET imaging agent in an increasingly competitive marketplace. PYLARIFY’s competition includes two commercially available gallium-68-based PSMA imaging agents, an approved fluorine-18-based PSMA imaging agent, and other non-PSMA-based imaging agents commonly

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referred to as conventional imaging. We previously hired additional employees to assist us with the commercialization of PYLARIFY, including in Sales, Marketing, Reimbursement, Quality, and Medical Affairs, and we will continue to make commercial investments necessary to drive PYLARIFY awareness and adoption. We believe that PYLARIFY currently has the largest dedicated field-based commercial team in the PSMA PET imaging agent space. Continued growth and revenue contribution from PYLARIFY will also depend on our ability to differentiate PYLARIFY, including through flexible and dependable access to PYLARIFY, a best in class customer experience and through long-term strategic partnerships.

Our Healthcare Procedure Coding System code, which enables streamlined billing, went into effect as of January 1, 2022. In addition, effective January 1, 2022, the Centers for Medicare and Medicaid Service (“CMS”) granted Transitional Pass-Through Payment (“TPT Status”) in the hospital outpatient setting for PYLARIFY, enabling traditional Medicare fee-for-service to provide separate payment for PYLARIFY in addition to the payment for the PET/CT procedure in that setting. TPT Status for PYLARIFY will expire on December 31, 2024.

In July 2024, CMS released the CY2025 Proposed Hospital Outpatient Prospective Payment System or OPPS rule which recognizes the value and need for broad access to diagnostic radiopharmaceuticals. The rule proposes separate payment for those diagnostic radiopharmaceuticals with per day costs greater than $630. If implemented in the final rule in November, CMS would maintain separate payment for PYLARIFY after the expiration of transitional pass-through for the approximately 20% of patients with traditional Medicare fee-for-service insurance coverage who are treated in the hospital outpatient setting.

Our plan to successfully grow PYLARIFY includes highlighting its commercial and clinical value, expanding its use in appropriate new patient populations, and through strategic partnerships and collaborations, including outside of the U.S.. Internationally, we previously licensed exclusive rights to Curium to develop and commercialize piflufolastat F 18 in Europe. In July 2023, Curium announced that it received marketing authorization from the European Commission for piflufolastat F 18, which is being commercialized in the EU under the brand name PYLCLARI. We have entered into multiple strategic collaborations with pharmaceutical companies in connection with the development of PSMA-targeted therapeutics. Additional information on collaborations using PYLARIFY are described further under Part I, Item 1. “Business - Strategic Partnerships and Other Revenue – Oncology” in our Annual Report on Form 10-K for the year ended December 31, 2023.

In connection with the acquisition of Progenics in June 2020, we issued CVRs tied to the financial performance of PYLARIFY. We paid $99.6 million to the CVR holders during May 2023 in full satisfaction of our obligations under the CVRs.

Continued Growth of DEFINITY

We believe we will be able to increase use of DEFINITY through continued education of physicians and HCPs about the benefits of ultrasound enhancing agents in suboptimal echocardiograms. The U.S. market currently has three echocardiography ultrasound enhancing agents approved by the FDA; we estimate that DEFINITY will continue to hold at least an 80% share of the U.S. segment for ultrasound enhancing agents in echocardiography procedures.

As we continue to expand our microbubble franchise, our activities include:

•Expansion of Label – In March 2024, we received FDA approval for our supplemental new drug application for the use of DEFINITY in pediatric patients with suboptimal echocardiograms. The FDA decision was based on usage data from three pediatric clinical trials conducted with DEFINITY.

•Patents – We continue to actively pursue additional patents in connection with DEFINITY, both in the U.S. and internationally. In the U.S. for DEFINITY, we have Orange Book-listed method-of-use patents, as well as additional manufacturing patents that are not Orange Book-listed.

•VIALMIX RFID – DEFINITY is activated through the use of medical devices branded as VIALMIX and VIALMIX RFID. The activation rate and time are controlled by VIALMIX RFID through the use of radio-frequency identification technology (“RFID”) to ensure reproducible activation of DEFINITY. The RFID tag, which is affixed to the vial label, enables the DEFINITY vial to be appropriately activated with the VIALMIX RFID activation device.

Expansion of Strategic Partnerships and Other Revenue

We continue to seek ways to further increase the overall value of our portfolio of products and product candidates. We are evaluating a number of different opportunities to collaborate, in-license or acquire additional products, product candidates, businesses and technologies to drive our future growth. In particular, we are focused on late-stage radiopharmaceutical therapeutic and diagnostic product opportunities in oncology, neurology, and other strategic areas that will complement our existing portfolio.

Our Strategic Partnerships and Other Revenue category includes our Strategic Partnerships, Digital Solutions, and Pharma Solutions businesses and is focused on enabling precision medicine with biomarkers and digital solutions.

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•Strategic Partnerships – We seek to monetize our assets through our Strategic Partnerships business, by optimizing core assets geographically and by driving value through non-core assets. For example, we licensed the commercialization rights for piflufolastat F 18 in Europe to Curium and for flurpiridaz, a fluorine-18-based PET Myocardial Perfusion Imaging agent designed to assess blood flow to the heart in patients suspected of coronary artery disease, to GE Healthcare Limited.

•Digital Solutions – Our Digital Solutions are designed to enhance imaging value and the throughput, reproducibility and reliability of image analysis, as well as to inform treatment selection and response to therapy. We offer our Digital Solutions to HCPs for clinical use and to pharmaceutical companies for development purposes, and in some cases, we also obtain clinical imaging data that we may use to further develop artificial intelligence solutions. Our Digital Solutions include artificial intelligence medical device software, such as aPROMISE and Automated Bone Scan Index (“aBSI”), both of which are FDA cleared and CE marked.

◦aPROMISE, which is currently sold as PYLARIFY AI in the U.S., is designed to allow healthcare professionals and researchers to perform standardized quantitative assessment of PSMA PET/computed tomography (“CT”) images in prostate cancer, including those images obtained by using PYLARIFY. In June 2024, we announced that aPROMISE was available on the syngo.via platform, from Siemens Healthineers, via its OpenApps Digital Marketplace.

◦aBSI automatically calculates the disease burden of prostate cancer by detecting and classifying bone scan tracer uptakes as metastatic or benign lesions using an artificial neural network. The software is currently used as one of the correlative objectives of the DORA trial, an open-labeled, randomized, Phase 3 study of docetaxel versus docetaxel in combination with radium-223 (Ra-223) in subjects with mCRPC.

•Pharma Solutions – We use our Pharma Solutions business to offer our Biomarkers and Microbubble Platforms to pharmaceutical and start-up companies to support their research and development of therapeutic drugs and devices. The strategic goal of our Pharma Solutions business is to gain early access to innovation, de-risk the development, generate data, embed our technologies in the clinical ecosystem and establish the clinical utility of product candidates and research tools in our pipeline. Our Biomarkers are intended to support patient selection and the monitoring of disease progression. For example, piflufolastat F 18 is currently being used by Curium and Regeneron in those companies’ prostate cancer therapeutic drug development programs, and was also used in the development of PNT2002. MK-6240 has been used in more than ninety clinical trials for several Alzheimer’s disease therapeutic candidates and NAV-4694 is being used in academic and industry investigational therapeutic trials.

With respect to our Microbubble Platform, we generally enter into collaborations with partners seeking to include our microbubble as part of a kit used with our partner’s medical device for therapeutic applications. In these collaborations, our microbubble is intended to be used as a vehicle to deliver a therapeutic drug.

Global Mo-99 Supply

We currently have Mo-99 supply agreements with Institute for Radioelements (“IRE”), running through December 31, 2024, with auto-renewal provisions that are terminable upon notice of non-renewal, and with NTP Radioisotopes (“NTP”), acting for itself and on behalf of its subcontractor, the Australian Nuclear Science and Technology Organisation (“ANSTO”), running through December 31, 2024.

Although we believe we have the most globally diverse Mo-99 supply with IRE in Belgium, NTP in South Africa, and ANSTO in Australia, we still face supplier and logistical challenges in our Mo-99 supply chain. When one supplier experiences outages, we generally rely on Mo-99 supply from the other suppliers to limit the impact of the outages. We believe we effectively manage these various supply chain challenges, but depending on reactor and processor schedules and operations, at times we have not been able to fill some or all of the demand for our TechneLite generators on certain manufacturing days. A prolonged disruption of service from one of our three Mo-99 processing sites or one of their main Mo-99-producing reactors could have a negative effect on our business, results of operations, financial condition and cash flows.

Inventory Supply & Third Party Suppliers

We obtain a substantial portion of our imaging agents from third-party suppliers. Jubilant HollisterStier (“JHS”) is currently a significant supplier of DEFINITY and our sole source manufacturer of NEUROLITE, CARDIOLITE and evacuation vials, the latter being an ancillary component for our TechneLite generators. Our manufacturing and supply agreement with JHS (the “JHS MSA”) runs through December 31, 2027 and can be further extended by mutual agreement of the parties. The JHS MSA requires us to purchase from JHS specified percentages of our total requirements for DEFINITY, as well as specified quantities of NEUROLITE, CARDIOLITE and evacuation vial products, each year during the contract term. Either party can terminate the JHS MSA upon the occurrence of certain events, including the material breach or bankruptcy of the other party.

In 2021, we completed the construction of a specialized in-house manufacturing facility at our North Billerica campus to produce DEFINITY. On February 22, 2022, we received FDA approval of our supplemental new drug application authorizing commercial

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manufacturing of DEFINITY at our new facility. We believe this investment provides supply chain redundancy, improved flexibility and reduced costs in a potentially more price competitive environment.

Radiopharmaceuticals are decaying radioisotopes with half-lives ranging from a few hours to several days. Radiopharmaceutical finished goods, such as doses of PYLARIFY, cannot be kept in inventory because of their limited shelf lives and are subject to just-in-time manufacturing, processing and distribution, with PYLARIFY manufactured at multiple PMF manufacturing sites across the U.S. and our TechneLite generators and Xenon manufactured at our facilities in North Billerica, Massachusetts.

Research and Development Expenses

To ensure we remain the leading radiopharmaceutical-focused company, we have historically made and will continue to make substantial investments in new product development and lifecycle management for existing products, including:

•For PYLARIFY, we recently enrolled the first patient in a clinical trial to determine whether PYLARIFY can detect the presence or absence of additional prostate cancer lesions in patients with favorable intermediate-risk prostate cancer, as well as how it may change the patient’s intended management. We also continue to support investigator sponsored research with the potential to expand the clinical utility of PYLARIFY.

•For PNT2002 and PNT2003, we were granted a license to exclusive worldwide rights (excluding certain countries) for $260.0 million in upfront payments during the fourth quarter of 2022 and will potentially make additional payments as described below. We also filed an ANDA for PNT2003 as described further in the section entitled “Exclusive License for PNT2002 and PNT2003” above.

•For MK-6240, we acquired the right to the investigational asset for an upfront payment of $35.3 million in February 2023 and an additional $10.0 million in May 2023 upon the successful completion of a technology transfer and will potentially make additional milestone and royalty payments. We recently held a pre-NDA meeting with the FDA and are expecting to submit an NDA for MK-6240 in 2025.

•For NAV-4694, we acquired the rights to the investigational asset for an upfront payment of $32.9 million and will potentially make additional milestone and royalty payments.

•For LNTH-1363S, in collaboration with Ratio Therapeutics, we recently completed a Phase 1 study for LNTH-1363S to evaluate the pharmacokinetics, biodistribution, and radiation dosimetry in adult healthy volunteers. We plan to initiate a Phase 1/2a study in patients in 2024.

•For RM2, we acquired global rights for an upfront payment of $35.0 million plus a $1.0 million payment made prior to the close date, and will potentially make additional milestone and royalty payments. We plan to initiate a Phase 1/2a study in prostate cancer patients in 2025.

•For TROP2 and LRRC15, we acquired the rights to the preclinical assets and the underlying license agreements for $2 million and will potentially make additional milestone and royalty payments.

See Note 19, "Acquisition of Assets" in our consolidated financial statements herein for additional information on potential milestone and royalty payments related to the product candidates listed above.

PNT2002

Under the terms of the PNT2002 License Agreement, Lantheus Two paid POINT an upfront payment of $250.0 million, and could pay up to an additional $281.0 million in milestone payments upon the achievement of specified U.S. and ex-U.S. regulatory milestones. POINT is also eligible to receive up to $1.3 billion in sales milestone payments upon the achievement of specified annual sales thresholds of PNT2002. In addition, after Lantheus Two achieves $500.0 million in cumulative gross profit, POINT is eligible to receive royalty payments of twenty percent of net sales of PNT2002. Prior to achieving that financial recoupment threshold, POINT is eligible to receive royalty payments of twenty percent on that portion of annual net sales of PNT2002 that generate annual gross profit in excess of specified levels.

PNT2003

Under the terms of the PNT2003 License Agreement, Lantheus Three, LLC paid POINT an upfront payment of $10.0 million, and could pay up to an additional $34.5 million in milestone payments upon the achievement of specified U.S. and ex-U.S. regulatory milestones. POINT is also eligible to receive up to $275.0 million in sales milestone payments upon the achievement of specified annual sales thresholds of PNT2003. In addition, POINT is eligible to receive royalty payments of fifteen percent of net sales of PNT2003.

Our investments in these additional clinical activities and lifecycle management opportunities will increase our operating expenses and impact our results of operations and cash flow, and we can give no assurances as to whether any of our clinical development candidates or lifecycle management opportunities will be successful.

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Results of Operations

The following is a summary of our consolidated results of operations:


	Three Months Ended June 30,								Six Months Ended June 30,
(in thousands)	2024		2023		Change $		Change %		2024		2023		Change $		Change %
Revenues	$	394,091	$	321,700	$	72,391	22.5	%	$	764,066	$	622,484	$	141,582	22.7	%
Cost of goods sold	138,317		119,053		19,264		16.2	%	266,446		342,761		(76,315)		(22.3)	%
Gross profit	255,774		202,647		53,127		26.2	%	497,620		279,723		217,897		77.9	%
Operating expenses
Sales and marketing	45,035		36,456		8,579		23.5	%	90,581		69,073		21,508		31.1	%
General and administrative	47,409		26,151		21,258		81.3	%	95,304		49,422		45,882		92.8	%
Research and development	60,601		15,901		44,700		281.1	%	108,625		46,433		62,192		133.9	%
Total operating expenses	153,045		78,508		74,537		94.9	%	294,510		164,928		129,582		78.6	%
Gain on sale of assets	—		—		—		N/A		6,254		—		6,254		N/A
Operating income	102,729		124,139		(21,410)		(17.2)	%	209,364		114,795		94,569		82.4	%
Interest expense	4,862		4,933		(71)		(1.4)	%	9,721		9,924		(203)		(2.0)	%
Investment in equity securities - unrealized loss (gain)	22,537		—		22,537		N/A		(38,167)		—		(38,167)		N/A
Other income	(9,044)		(4,482)		(4,562)		101.8	%	(17,832)		(7,713)		(10,119)		131.2	%
Income before income taxes	84,374		123,688		(39,314)		(31.8)	%	255,642		112,584		143,058		127.1	%
Income tax expense	22,301		29,557		(7,256)		(24.5)	%	62,503		21,260		41,243		194.0	%
Net income	$	62,073	$	94,131	$	(32,058)	(34.1)	%	$	193,139	$	91,324	$	101,815	111.5	%

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Comparison of the Periods Ended June 30, 2024 and 2023

Revenues

We classify our revenues into three product categories: Radiopharmaceutical Oncology, Precision Diagnostics, and Strategic Partnerships and Other Revenue. Radiopharmaceutical Oncology consists of PYLARIFY and AZEDRA. In the first quarter of 2024, the Company discontinued the production of AZEDRA. Precision Diagnostics includes DEFINITY, TechneLite and other diagnostic imaging products. Strategic Partnerships and Other Revenue primarily includes out-licensing arrangements and partnerships for our biomarkers, digital solutions and radiotherapeutic platforms.

Revenues are summarized by product category on a net basis as follows:


	Three Months Ended June 30,								Six Months Ended June 30,
(in thousands)	2024		2023		Change $		Change %		2024		2023		Change $		Change %
PYLARIFY	$	273,255	$	210,522	$	62,733	29.8	%	$	532,125	$	405,992	$	126,133	31.1	%
Other radiopharmaceutical oncology	—		818		(818)		(100.0)	%	384		1,535		(1,151)		(75.0)	%
Total radiopharmaceutical oncology	273,255		211,340		61,915		29.3	%	532,509		407,527		124,982		30.7	%
DEFINITY	78,100		70,529		7,571		10.7	%	154,664		139,353		15,311		11.0	%
TechneLite	28,186		21,594		6,592		30.5	%	49,900		42,580		7,320		17.2	%
Other precision diagnostics	5,825		5,454		371		6.8	%	11,757		11,261		496		4.4	%
Total precision diagnostics	112,111		97,577		14,534		14.9	%	216,321		193,194		23,127		12.0	%
Strategic partnerships and other revenue	8,725		12,783		(4,058)		(31.7)	%	15,236		21,763		(6,527)		(30.0)	%
Total revenues	$	394,091	$	321,700	$	72,391	22.5	%	$	764,066	$	622,484	$	141,582	22.7	%

The increase in revenues for the three and six months ended June 30, 2024, is primarily driven by an increase in PYLARIFY, DEFINITY and TechneLite sales volumes, as well as revenue generated by Cerveau, offset by the sale of the RELISTOR royalty asset as recorded in Strategic Partnerships and Other Revenue

Rebates and Allowances

Estimates for rebates and allowances represent our estimated obligations under contractual arrangements with third parties. Rebate accruals and allowances are recorded in the same period the related revenue is recognized, resulting in a reduction to revenue and the establishment of a liability which is included in accrued expenses. These rebates and allowances result from performance-based offers that are primarily based on attaining contractually specified sales volumes and growth, Medicaid rebate programs for our products, administrative fees of group purchasing organizations, and certain distributor related commissions. The calculation of the accrual for these rebates and allowances is based on an estimate of the third-party’s expected purchases and the resulting applicable contractual rebate to be earned over a contractual period.

An analysis of the amount of, and change in, reserves is summarized as follows:


(in thousands)	Rebates and Allowances
Balance, January 1, 2024	$	16,070
Provision related to current period revenues	26,486

Payments or credits made during the period	(25,308)
Balance, June 30, 2024	$	17,248

Gross Profit

The increase in gross profit for the three and six months ended June 30, 2024, as compared to the prior year periods, are primarily due to the impairment of the AZEDRA marketed intangible asset, which was recorded in 2023 and not in 2024, and an increase in PYLARIFY and DEFINITY sales volumes, partially offset by the decrease of the RELISTOR royalty asset due to the sale of the asset.

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Sales and Marketing

Sales and marketing expenses consist primarily of salaries and other related costs for personnel in field sales, marketing, and customer service functions. Other costs in sales and marketing expenses include the development of advertising and promotional material, business analytics, professional services, market research and market access, and sales meetings.

Sales and marketing expenses increased $8.6 million and $21.5 million for the three and six months ended June 30, 2024, respectively, as compared to the prior year period. This was primarily driven by our investment in sales and marketing efforts, including an expansion of our PYLARIFY sales force, functional support, and brand strategy intended to support and expand adoption of PYLARIFY and launch planning for new assets.

General and Administrative

General and administrative expenses consist of salaries and other related costs for personnel in executive, finance, legal, information technology and human resource functions. Other costs included in general and administrative expenses are professional fees for information technology services, external legal fees, consulting and accounting services as well as bad debt expense, certain facility and insurance costs, including director and officer liability insurance.

General and administrative expenses increased $21.3 million and $45.9 million for the three and six months ended June 30, 2024, respectively, as compared to the prior period. This was primarily driven by investment in technology, higher stock compensation, increased headcount and employee-related costs, and higher professional fees, primarily related to business development activity.

Research and Development

Research and development expenses relate primarily to the development of new products to add to our portfolio and costs related to our medical affairs, medical information and regulatory functions.

Research and development expenses increased $44.7 million for the three months ended June 30, 2024 as compared to the prior year period. This was primarily driven by IPR&D expense of $36.0 million related to the Life Molecular Asset Purchase and $2.0 million related to the Radiopharm Asset Purchase, increased headcount and employee-related costs, and increased project costs including MK-6240 research and development expenses.

Research and development expenses increased $62.2 million for the six months ended June 30, 2024 as compared to the prior year period. This was primarily driven by IPR&D expense of $36.0 million related to the Life Molecular Asset Purchase, $2.0 million related to the Radiopharm Asset Purchase, and an upfront option payment of $28.0 million to Perspective, increased headcount and employee-related costs, and increased project costs, including MK-6240 research and development expenses. This increase was offset, in part, by a non-cash impairment charge in the prior year associated with an IPR&D asset of $15.6 million and lower clinical expenses related to our Phase 2 study for 1095.

Interest Expense

Interest expense decreased by approximately $0.1 million and $0.2 million for the three and six months ended June 30, 2024, respectively, as compared to the prior year period.

Investment in Equity Securities - Unrealized Loss (Gain)

Investment in equity securities - unrealized loss (gain) increased $22.5 million for the three months and decreased $(38.2) million for the six months ended June 30, 2024, respectively, due to the fair value adjustment of the investment in shares of Perspective’s common stock.

Income Tax Expense

Our effective tax rate for each reporting period is presented as follows:


	Six Months Ended June 30,
	2024	2023
Effective tax rate	24.4%	18.9%

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Our effective tax rate for the six months ended June 30, 2024 differs from the U.S. statutory rate of 21% primarily due to state income taxes, partially offset by the income tax benefits associated with stock compensation deductions.

The increase in the effective income tax rate for the six months ended June 30, 2024 is primarily due to the decrease in the Company’s stock compensation deductions and the change in fair value of our contingent consideration liabilities.

Liquidity and Capital Resources

Cash Flows

The following table provides information regarding our cash flows:


	Six Months Ended June 30,
(in thousands)	2024		2023
Net cash provided by operating activities	$	211,958	$	76,234
Net cash used in investing activities	$	(151,615)	$	(65,210)
Net cash used in financing activities	$	(16,746)	$	(12,720)

Net Cash Provided by Operating Activities

Net cash provided by operating activities of $212.0 million in the six months ended June 30, 2024 was primarily comprised of net income adjusted for the net effect of non-cash items such as unrealized gain on equity investment, charges incurred in connection with the Perspective IPR&D exclusive license options, charges related to Radiopharm’s licensed assets, charges related to Life Molecular Imaging’s RM2 license, depreciation, amortization and accretion expense, and stock-based compensation expense. The primary working capital sources of cash is attributable to the timing of payments to large vendors. The primary working capital uses of cash were an increase in trade receivables associated primarily with the increase in PYLARIFY revenues, and an increase in inventory related to the timing of batch processes.

Net cash provided by operating activities of $76.2 million in the six months ended June 30, 2023 was primarily comprised of net income adjusted for the net effect of non-cash items such as impairment of long-lived assets, depreciation, amortization and accretion expense and stock-based compensation expense. The primary working capital sources of cash were the timing of payments to large vendors. The primary working capital uses of cash were a decrease to accruals related to the CVR payment, an increase in trade receivables associated primarily with the increase in PYLARIFY revenues, and an increase in inventory related to the timing of batch processes.

Net Cash Used in Investing Activities

Net cash used in investing activities during the six months ended June 30, 2024 was driven by an upfront option payment of $28.0 million to Perspective, $1.0 million upfront payment to Life Molecular Imaging, $32.9 million upfront payment to the Meilleur Stockholders, $78.3 million for the purchase of equity securities, and $19.4 million of capital expenditures, partially offset by net cash proceeds of $8.0 million from the sale of the Somerset Facility sublease and associated assets.

Net cash used in investing activities during the six months ended June 30, 2023 was due to $45.3 million for our asset acquisition of Cerveau and $19.9 million of capital expenditures.

Net Cash Used in Financing Activities

Net cash used in financing activities during the six months ended June 30, 2024 is primarily attributable to the payments for minimum statutory tax withholding related to net share settlement of equity awards of $20.4 million offset by proceeds of $4.3 million from stock option exercises.

Net cash used in financing activities during the six months ended June 30, 2023 is primarily attributable to the payments for minimum statutory tax withholding related to net share settlement of equity awards of $12.6 million and the CVR initial valuation as of June 30, 2020 of $3.7 million offset by proceeds of $3.2 million from stock option exercises.

External Sources of Liquidity

In December 2022, we entered into the 2022 Revolving Facility. The terms of the 2022 Revolving Facility are set forth in the Credit Agreement, dated as of December 2, 2022, by and among us, the lenders from time to time party thereto and Citizens Bank, N.A., as administrative agent and collateral agent (the “2022 Credit Agreement”). We have the right to request an increase to the 2022 Revolving Facility or request the establishment of one or more new incremental term loan facilities, in an aggregate principal amount

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of up to $335 million or consolidated EBITDA for the four consecutive fiscal quarters most recently ended, plus additional amounts, in certain circumstances.

Under the terms of the 2022 Revolving Facility, the lenders thereunder agreed to extend credit to us from time to time until December 2, 2027 consisting of revolving loans in an aggregate principal amount not to exceed $350.0 million at any time. The 2022 Revolving Facility includes a $20.0 million sub-facility for the issuance of Letters of Credit. The 2022 Revolving Facility includes a $10.0 million sub-facility for Swingline Loans. The Letters of Credit, Swingline Loans and the borrowings under the 2022 Revolving Facility are expected to be used for working capital and other general corporate purposes.

Please refer to Note 11, "Long-Term Debt, Net, and Other Borrowings" for further details on the 2022 Revolving Facility.

As of June 30, 2024, we were in compliance with all financial and other covenants under the 2022 Credit Agreement.

On December 8, 2022, we issued $575.0 million in aggregate principal amount of the Notes, which includes $75.0 million in aggregate principal amount of Notes sold pursuant to the full exercise of the initial purchasers’ option to purchase additional Notes. The Notes were issued under the Indenture. The net proceeds from the issuance of the Notes were approximately $557.8 million, after deducting the initial purchasers’ discounts and offering expenses payable by us.

On August 2, 2023, we sold the right to our RELISTOR royalty asset under our license agreement with Bausch; we retained the rights to future sales-based milestone payments. We received an initial payment of approximately $98.0 million in connection with the sale and have the right to receive an additional $5.0 million payment if worldwide net sales of RELISTOR in 2025 exceed a specified threshold. The additional payment would be recognized upon achievement of the specified threshold. Following such sale, we no longer receive tiered, sales-based royalties on worldwide net sales of RELISTOR related to the second quarter of 2023 and subsequent quarters.

Our ability to fund our future capital needs will be affected by our ability to continue to generate cash from operations and may be affected by our ability to access the capital markets, money markets or other sources of funding, as well as the capacity and terms of our financing arrangements.

We may from time to time repurchase or otherwise retire our debt and take other steps to reduce our debt or otherwise improve our balance sheet. These actions may include prepayments of our term loans or other retirements or refinancing of outstanding debt, privately negotiated transactions or otherwise. The amount of debt that may be retired, if any, could be material and would be decided at the sole discretion of our Board of Directors and will depend on market conditions, our cash position, and other considerations.

Funding Requirements

Our future capital requirements will depend on many factors, including:

•The level of product sales and the pricing environment of our currently marketed products, particularly PYLARIFY and DEFINITY, as well as any additional products that we may market in the future;

•Revenue mix shifts and associated volume and selling price changes that could result from additional competition or changes in customers’ product demand;

•The continued costs of the ongoing commercialization of our products;

•Our investment in the further clinical development and commercialization of products and development candidates, as well as whether we exercise our option and co-development rights under the Perspective agreements;

•The costs of acquiring or in-licensing, developing, obtaining regulatory approval for, and commercializing, new products, businesses or technologies, including any potential related milestone or royalty payments, together with the costs of pursuing opportunities that are not eventually consummated;

•The costs of investing in our facilities, equipment and technology infrastructure;

•The costs and timing of establishing or amending manufacturing and supply arrangements for commercial supplies of our products and raw materials and components;

•Our ability to have products manufactured and released from manufacturing sites in a timely manner in the future, or to manufacture products at our in-house manufacturing facilities in amounts sufficient to meet our supply needs;

•The costs of further commercialization of our existing products, particularly in international markets, including product marketing, sales and distribution and whether we obtain local partners to help share such commercialization costs;

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•The legal costs relating to maintaining, expanding and enforcing our intellectual property portfolio, pursuing insurance or other claims and defending against product liability, regulatory compliance, intellectual property or other claims, including the patent infringement claim related to the filing of our ANDA for PNT2003;

•The cost of interest on any additional borrowings which we may incur under our financing arrangements; and

•The impact of sustained inflation on our costs of goods sold and operating expenses.

Disruption in our financial performance could occur if we experience significant adverse changes in product or customer mix, broad economic downturns, sustained inflation, adverse industry or company conditions or catastrophic external events, including pandemics such as COVID-19, natural disasters and political or military conflict. If we experience one or more of these events in the future, we may be required to further implement expense reductions, such as a delay or elimination of discretionary spending in all functional areas, as well as scaling back select operating and strategic initiatives.

If our capital resources become insufficient to meet our future capital requirements, we would need to finance our cash needs through public or private equity offerings, debt financings, assets securitizations, sale-leasebacks or other financing or strategic alternatives, to the extent such transactions are permissible under the covenants of our 2022 Credit Agreement. Additional equity or debt financing, or other transactions, may not be available on acceptable terms, if at all. If any of these transactions require an amendment or waiver under the covenants in our 2022 Credit Agreement, which could result in additional expenses associated with obtaining the amendment or waiver, we will seek to obtain such a waiver to remain in compliance with those covenants. However, we cannot provide assurance that such an amendment or waiver would be granted, or that additional capital will be available on acceptable terms, if at all.

At June 30, 2024, our only current committed external source of funds is our borrowing availability under our 2022 Revolving Facility. We had $757.0 million of cash and cash equivalents as of June 30, 2024. Our 2022 Revolving Facility contains a number of affirmative, negative, reporting and financial covenants, in each case subject to certain exceptions and materiality thresholds. Incremental borrowings under the 2022 Revolving Facility may affect our ability to comply with the covenants including the financial covenants restricting consolidated net leverage and interest coverage. Accordingly, we may be limited in utilizing the full amount of our 2022 Revolving Facility as a source of liquidity.

Based on our current operating plans, we believe our balance of cash and cash equivalents, along with cash generated by ongoing operations and continued access to our 2022 Revolving Facility, will be sufficient to satisfy our cash requirements over the next twelve months and beyond.

Critical Accounting Policies and Estimates

The discussion and analysis of our financial condition and results of operations are based on our condensed consolidated financial statements, which have been prepared in accordance with U.S. GAAP. The preparation of these condensed consolidated financial statements requires us to make estimates and judgments that affect our reported assets and liabilities, revenues and expenses, and other financial information. Actual results may differ materially from these estimates under different assumptions and conditions. In addition, our reported financial condition and results of operations could vary due to a change in the application of a particular accounting standard.

There have been no significant changes to our critical accounting policies with the exception of the investment policy or in the underlying accounting assumptions and estimates used in such policies in the six months ended June 30, 2024. For further information, refer to our summary of significant accounting policies and estimates in our Annual Report on Form 10-K filed for the year ended December 31, 2023.

Off-Balance Sheet Arrangements

We are required to provide the Massachusetts Department of Public Health financial assurance demonstrating our ability to fund any decommissioning of our North Billerica, Massachusetts production facility in the event of any closure. We have provided this financial assurance in the form of a $30.3 million surety bond.

We have not engaged in any other off-balance sheet arrangements, including structured finance, special purpose entities or variable interest entities.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

For quantitative and qualitative disclosures about market risk, see Part II, Item 7A. “Quantitative and Qualitative Disclosures About Market Risk,” of our Annual Report on Form 10-K for the year ended December 31, 2023. Our exposures to market risk have not changed materially since December 31, 2023.

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Equity Investment Risk

As of June 30, 2024, our recorded value of investments in equity securities was $116.4 million, comprised entirely of our equity investment in Perspective, and is recorded at fair value, which is subject to market price volatility. We record our equity investments in public companies at fair value and adjust our equity investments in public companies for observable price changes or impairments. Valuations of public companies are variable and subject to change in share price at the applicable measurement period.

Item 4. Controls and Procedures

Disclosure Controls and Procedures

The Company’s management, with the participation of the Company’s Chief Executive Officer (“CEO”) and Chief Financial Officer (“CFO”), its principal executive officer and principal financial officer, respectively, has evaluated the effectiveness of the Company’s disclosure controls and procedures as defined in Rule 13a-15(e) and 15d-15(e) of the Exchange Act. Based on that evaluation, the Company’s CEO and CFO concluded that the Company’s disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) were effective as of the period covered by this report.

Changes in Internal Controls Over Financial Reporting

There were no changes in our internal control over financial reporting during the quarter ended June 30, 2024 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II. OTHER INFORMATION

Item 1. Legal Proceedings

Information with respect to certain legal proceedings is included in Note 18, "Commitments and Contingencies", to the condensed consolidated financial statements contained in Part I, Item 1. Financial Statements of this Quarterly Report on Form 10-Q and is incorporated herein by reference.

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Item 1A. Risk Factors

There have been no material changes to the risk factors set forth in our Annual Report on Form 10-K for the year ended December 31, 2023, except as set forth below:

Risks Related to Our Portfolio of Commercial Products

Our ability to continue to grow PYLARIFY as a commercial product is dependent on (A) the ability of PMFs to manufacture PYLARIFY to meet product demand, (B) our ability to obtain and maintain adequate coding, coverage and payment for PYLARIFY, (C) our ability to promote PYLARIFY to customers and to maintain PYLARIFY as the leading PSMA PET imaging agent, including after the potential expiration of TPT Status at the end of 2024 and (D) our ability to clinically and commercially differentiate PYLARIFY from other products.

To manufacture PYLARIFY, we assembled and qualified a nationwide network of PMFs with radioisotope-producing cyclotrons that make F 18, which has a 110-minute half-life, so PYLARIFY is manufactured and distributed rapidly to end-users. Because each of the PMFs manufacturing these products is deemed by the FDA to be a separate manufacturing site, each has to be separately approved by the FDA. Although PYLARIFY is broadly available across the U.S., we continue to seek qualification for additional PMFs in 2024 and can give no assurance that the FDA will continue to approve PMFs in accordance with our expansion to meet increasing demand. If FDA approval of manufacturing sites is delayed or withdrawn, our business, results of operations, financial condition and cash flows could be adversely affected.

Obtaining adequate coding, coverage and payment for PYLARIFY is critical, including not only coverage from Medicare, Medicaid and other government payors, as well as private payors, but also appropriate payment levels to adequately cover our customers’ costs of using PYLARIFY in PET/CT imaging procedures. The HCPCS code for PYLARIFY, which enables streamlined billing, went into effect as of January 1, 2022. In addition, effective January 1, 2022, CMS granted TPT Status for PYLARIFY, enabling traditional Medicare to provide an incremental payment for PET/CT scans performed with PYLARIFY in the hospital outpatient setting. TPT Status for PYLARIFY is expected to expire on December 31, 2024. After TPT Status expires, under current Medicare rules, PYLARIFY would not be separately reimbursed in the hospital outpatient setting but rather would be bundled into the facility payment a hospital receives for a PET/CT imaging procedure, and the facility payment may not always adequately cover the total cost of the procedure with PYLARIFY. Other competitive PSMA PET imaging agents will continue to have TPT after December 31, 2024 which could result in PYLARIFY customers choosing to prescribe and use a competitor’s PSMA PET imaging agent instead of PYLARIFY.

In July 2024, CMS released the CY 2025 Proposed Hospital Outpatient Prospective Payment System, or OPPS, rule which recognizes the value and need for broad access to diagnostic radiopharmaceuticals by proposing separate payment for diagnostic radiopharmaceuticals with per day costs greater than $630. If implemented in the final rule in November, the CMS rule would maintain separate payment for PYLARIFY after the expiration of TPT status for the approximately 20% of patients with traditional Medicare fee-for-service insurance coverage who are treated in the hospital outpatient setting. However, we can give no assurance that CMS will adopt separate payment for diagnostic radiopharmaceuticals in its final CY 2025 OPPS rule, that it will follow the methodology set out in the Proposed OPPS rule for calculating such separate payment, that any CMS reimbursement in the hospital outpatient setting that follows the expiration of TPT Status (even if reimbursed as a separate payment) will be adequate to cover the cost of a PYLARIFY PET/CT imaging procedure, that any such rule will remain in effect if adopted or that legislative changes removing such a separate payment for diagnostic radiopharmaceuticals would not be adopted.

In addition, if other government payors or private payors do not provide adequate reimbursement for the use of PYLARIFY, our business, results of operations, financial condition and cash flows could be adversely affected. We plan to continue our advocacy efforts with CMS and private insurers so that PYLARIFY customers will have appropriate and adequate reimbursement following the expiration of TPT Status and we are also supporting trade associations in their efforts to lobby Congress to pass legislation that would allow for separate payment for certain diagnostic radiopharmaceuticals, including PYLARIFY, similar to the way Medicare OPPS currently pays for other drugs, biologics, and therapeutic radiopharmaceuticals instead of under the current TPT structure of a separate payment that is limited to three years, however, we can give no assurances that we will be successful in those efforts or that the availability of TPT Status for other diagnostic radiopharmaceuticals will not impact clinical decision making regarding which product to use, which could have an adverse effect on our business, results of operations, financial condition and cash flows.

The successful growth of PYLARIFY is also dependent on our ability to promote PYLARIFY to customers, to clinically and commercially differentiate PYLARIFY from other products on the market and to maintain PYLARIFY as the leading PSMA PET imaging agent in a competitive environment in which other PSMA PET imaging agents have been approved, for which discounts related to those other agents may be offered to customers and for which TPT Status will extend beyond December 31, 2024. PYLARIFY currently competes with two commercially available Ga-68-based PSMA PET imaging agents from Telix

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Pharmaceuticals Limited and Novartis AG and an F 18 PSMA PET imaging agent from Blue Earth, as well as other non-PSMA PET imaging agents. Continued growth and revenue contribution from PYLARIFY will also depend on our ability to differentiate PYLARIFY in light of the potential loss of TPT Status, including through flexible and dependable access to PYLARIFY nationally, a best in class customer experience and through long-term strategic contracts. To the extent we are not successful in these efforts and we lose market share to existing or future competitors (including during any period of time in which our TPT Status has expired but TPT Status for a later-approved competitive products still exists), such loss of market share could have an adverse impact on our business, results of operations, financial condition and cash flows.

Our success in growing PYLARIFY also depends, in part, on our successfully establishing the use of PYLARIFY for approved indications and potentially for additional indications, including for patient selection for PSMA-targeted therapeutics, and for new patient populations, such as patients with favorable intermediate-risk prostate cancer. For example, we believe the approval of PLUVICTO for the treatment of adult patients with PSMA-positive mCRPC who have already been treated with other anticancer treatments (androgen receptor pathway inhibition and taxane-based chemotherapy) created a new addressable market for the use of PSMA PET imaging in patient selection for PSMA-targeted therapy. However, the prescribing information for PLUVICTO specifies that a PSMA-11 based PSMA PET imaging agent be used for patient selection, and PYLARIFY is not a PSMA-11 based imaging agent. While we note that FDA-approved labels for F 18-based and PSMA-11 based PSMA PET imaging agents have generally been treated as a class of drugs, including by the National Comprehensive Cancer Center in its guidelines and the Society for Nuclear Medicine and Molecular Imaging in its appropriate use criteria, we can give no assurances that PLUVICTO prescribing information will be expanded to incorporate F 18-based PSMA PET imaging agents like PYLARIFY, or how current clinical practice may evolve. In addition, we recently enrolled the first patient in a clinical trial to determine whether PYLARIFY can detect the presence or absence of additional prostate cancer lesions in patients with favorable intermediate-risk prostate cancer, as well as how it may change the patient’s intended management, but cannot predict whether the outcome of this clinical trial will support such a use for PYLARIFY. To the extent we are unsuccessful in establishing the use of PYLARIFY for approved or new indications or in new patient populations, such lack of success could have an adverse impact on our business, results of operations, financial condition and cash flows.

We depend on some of our PMF partners to generate sales, accept, produce and deliver orders and report and collect payments on our behalf for PYLARIFY.

PYLARIFY is sold in the U.S. to hospitals, independent imaging centers and government facilities and sales are generated through an internal PYLARIFY sales team, as well as a sales team at some of our PMF partners. We generally do not use group purchasing arrangements to sell PYLARIFY and require each customer to enter into a contract directly with us or our PMFs. Our ability to continue to successfully grow PYLARIFY depends, in part, on our ability, and the ability of some of our PMF partners on our behalf, to continue to enter into commercially beneficial arrangements directly with the hospitals, independent imaging centers and government facilities that we serve. Any delay or inability to enter into these arrangements, including our ability to negotiate favorable financial terms in these agreements, could have an adverse impact on our business, results of operations, financial condition and cash flows.

In addition to depending in part on some of our PMF partners to generate sales, we also depend on some of our PMF partners to accept, produce and deliver orders, invoice customers and to report and collect payments. To the extent our PMF partners are unsuccessful in generating sales, accepting, producing and delivering orders, invoicing customers or in reporting or collecting payments on our behalf, such an event could have a material adverse effect on our business, results of operations, financial condition and cash flows.

We and our PMF partners also use third-party software to accept orders placed by customers and to record shipping and administrative status of orders. To the extent we are unable to accept orders or access, verify or reconcile ordering, shipping or administrative data, such event could have a material adverse effect on our business, results of operations, financial condition and cash flows.

We face significant competition in our business and may not be able to compete effectively.

The markets for our products are highly competitive and continually evolving. Our principal competitors for our current commercial products and leading clinical development candidates include large, global companies that are more diversified than we are and that have substantial financial, manufacturing, sales and marketing, distribution and other resources:

•For PYLARIFY, our competitors currently include approved imaging agents from Telix Pharmaceuticals Limited, Novartis AG, and Blue Earth, a subsidiary of Bracco.

•For DEFINITY, our competitors currently include GE Healthcare and Bracco.

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•For a number of our radiopharmaceutical commercial products, our competitors currently include Curium, GE Healthcare, Bracco and Jubilant Life Sciences, an affiliate of JHS and Jubilant Radiopharma, and potentially BWXT Medical.

•For PNT2002, our principal competitors may include Novartis AG; Telix Pharmaceuticals Limited; and Curium, each of which has commercialized products or product candidates in advanced clinical stage of development.

•For PNT2003, our principal competitors may include Novartis AG; ITM Radiopharma; Curium and RayzeBio (acquired by Bristol Myers Squibb), each of which has commercialized products or product candidates in advanced clinical stage of development.

•For MK-6240 and NAV-4694, our principal competitors may include Eli Lilly and Company, GE Healthcare, Life Molecular Imaging and Aprinoia Therapeutics, each of which has commercialized products or product candidates in advanced clinical stage of development and other companies that may have product candidates in development.

•For LNTH-1363S, our principal competitors may include Sofie Bioscience; GE Healthcare; and Novartis AG, each of which has product candidates in clinical stage of development.

•For RM2, our principal competitors may include Novartis AG; Clarity Pharma; and Orano Med, each of which has product candidates in clinical stage of development.

We cannot anticipate the actions of our current or future competitors in the same or competing modalities, such as significant price reductions on products that are competitive with our own, development of new products that are more cost-effective or have superior performance than our current products or potential future products or the introduction of generic versions after our proprietary products lose their patent protection. In addition, distributors of our products could attempt to shift end-users to competing diagnostic modalities and products, or bundle the sale of a portfolio of products, in either case to the detriment of our specific products. Our current or future products could be rendered obsolete or uneconomical as a result of these activities.

Further, the radiopharmaceutical industry continues to evolve strategically, with several market participants recently acquired by larger companies that may have more significant resources than ours. In addition, the supply-demand dynamics of the industry are complex because of large market positions of some participants, legacy businesses, government subsidies (in particular, relating to the manufacture of radioisotopes), and group purchasing arrangements and there are often limited sources available for isotopes and raw materials used in the manufacturing of our product and product candidates. We cannot predict what impact new owners and new operators may have on the strategic decision-making of our competitors, customers and suppliers, and such decision-making could have a material adverse effect on our business, results of operations, financial condition and cash flows.

Risks Related to Reimbursement and Regulation

Many of our customers are highly dependent on payments from third-party payors, including government sponsored programs, particularly Medicare, in the U.S. and other countries in which we operate, and reductions in third party coverage and reimbursement rates for our products (or services provided with our products) could adversely affect our business and results of operations.

A substantial portion of our revenue depends on the extent to which the costs of our products purchased by our customers (or services provided with our products) are reimbursed by third party payors, including Medicare, Medicaid, other U.S. government sponsored programs, non-U.S. governmental payors and private payors. These third-party payors exercise significant control over patient access and increasingly use their enhanced bargaining power to secure discounted rates and impose other requirements that may reduce demand for our products. Our customers’ ability to obtain adequate reimbursement for products and services from these third-party payors affects the selection of products they purchase and the prices they are willing to pay. If Medicare and other third party payors do not provide adequate reimbursement for the costs of our products (or services provided using our products), deny the coverage of the products (or those services), or reduce current levels of reimbursement, healthcare professionals may not prescribe our products and providers and suppliers may not purchase our products.

In addition, demand for new products may be limited unless we obtain favorable reimbursement (including coding, coverage and payment) from governmental and private third party payors at the time of the product’s introduction, which will depend, in part, on our ability to demonstrate that a new agent has a positive impact on clinical outcomes. Third-party payors continually review their coverage policies for existing and new products and procedures and can deny coverage for products or procedures that include the use of our products or revise payment policies such that payments do not adequately cover the cost of our products. Even if third-party payors make coverage and reimbursement available, that reimbursement may not be adequate or these payors’ reimbursement policies may have an adverse effect on our business, results of operations, financial condition and cash flows.

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For example, effective January 1, 2022, the CMS granted TPT Status in the hospital outpatient setting for PYLARIFY, enabling traditional Medicare to provide an incremental payment for PET/CT scans performed with PYLARIFY in that setting. TPT Status for PYLARIFY is expected to expire December 31, 2024. After TPT Status expires, under current Medicare rules, PYLARIFY would not be separately reimbursed in the hospital outpatient setting but rather would be bundled into the facility payment a hospital receives for a PET/CT imaging procedure, and the facility payment may not always cover the total cost of the procedure. Certain competitor PSMA PET products will continue to have TPT Status after PYLARIFY’s TPT Status expires and this could impact our customer’s prescribing habits. In July 2024, CMS released the CY 2025 Proposed OPPS rule which recognizes the value and need for broad access to diagnostic radiopharmaceuticals by proposing separate payment for diagnostic radiopharmaceuticals with per day costs greater than $630. If implemented in the final rule in November, CMS would maintain separate payment for PYLARIFY after the expiration of TPT Status for the approximately 20% of patients with traditional Medicare fee-for-service insurance coverage who are treated in the hospital outpatient setting. We can give no assurance that CMS will adopt separate payment for diagnostic radiopharmaceuticals in its final CY 2025 OPPS rule, that it will follow the methodology set out in the Proposed OPPS rule for calculating such separate payment, that any CMS reimbursement in the hospital outpatient setting that follows the expiration of TPT Status (even if reimbursed as a separate payment) will be adequate to cover a PYLARIFY PET/CT imaging procedure, that any such rule will remain in effect if adopted or that legislative changes removing such a separate payment for diagnostic radiopharmaceuticals would not be adopted or that the availability of TPT Status for other diagnostic radiopharmaceuticals will not impact clinical decision making regarding which product to use, which could have an adverse effect on our business, results of operations, financial condition and cash flows.

Over the past several years, Medicare has implemented numerous changes to payment policies for imaging procedures in both the hospital setting and non-hospital settings (which include physician offices and freestanding imaging facilities). Some of these changes have had a negative impact on utilization of imaging services. Examples of these changes include:

•Reducing payments for certain imaging procedures when performed together with other imaging procedures in the same family of procedures on the same patient on the same day in the physician office and free-standing imaging facility setting;

•Making significant revisions to the methodology for determining the practice expense component of the Medicare payment applicable to the physician office and free-standing imaging facility settings which has resulted in reduced payments for certain services;

•Revising payment policies and reducing payment amounts for imaging procedures performed in the hospital outpatient settings; and

•Reducing prospective payment levels for applicable diagnosis-related groups in the hospital inpatient setting.

In the physician office and free-standing imaging facility setting, services provided using our products are reimbursed under the Medicare physician fee schedule. Payment rates under the Medicare physician fee schedule are regularly subject to updates to effectuate various policy goals of CMS and Congress. For example, in 2022, CMS reduced Medicare fee schedule payments rates in the agency’s final rulemaking, while a larger cut was put forth in the proposed rulemaking earlier that year. For 2023, CMS had finalized a reduction in the Medicare fee schedule payments rates, which was revised by Congress, pursuant to the Consolidated Appropriations Act, 2023, to a lesser reduction. Additionally, since 2019, fee schedule payments have been adjusted for certain physicians based on their performance under a consolidated measurement system (that measures performance with respect to quality, resource utilization, meaningful use of certified electronic health records technology, and clinical practice improvement activities). From 2019 through payment year 2024, physicians may be eligible for a bonus based on the use of certain alternative payment models designated as “advanced” by CMS. The ongoing and future impact of these changes cannot be determined at this time.

We believe that Medicare changes to payment policies for imaging procedures applicable to non-hospital settings will continue to result in certain physician practices ceasing to provide these services and a further shifting of where certain medical imaging procedures are performed, from the physician office and free-standing imaging facility settings to the hospital outpatient setting. Changes applicable to Medicare payment in the hospital outpatient setting could also influence the decisions by hospital outpatient physicians to perform procedures that involve our products. Within the hospital outpatient setting, CMS payment policy is such that the use of many of our products are not separately payable by Medicare, although certain new drug products are eligible for separate (incremental) payment for the first three years after approval. Changes to the Medicare hospital outpatient prospective payment system payment rates, including reductions implemented for certain hospital outpatient sites, could influence the decisions by hospital outpatient physicians to perform procedures that involve our products and the risks discussed above with respect to separate payment for diagnostic radiopharmaceuticals in the hospital outpatient setting could also impact clinical decision-making.

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We also believe that all of these changes and their resulting pressures may incrementally reduce the overall number of diagnostic medical imaging procedures performed. These changes overall could slow the acceptance and introduction of next-generation imaging equipment into the marketplace, which, in turn, could adversely impact the future market adoption of certain of our imaging agents already in the market or currently in development. We expect that there will continue to be proposals to reduce or limit Medicare and Medicaid payment for diagnostic services, which could impact our current or potential future diagnostic and other types of products and have a material adverse effect on our business, results of operations, financial condition and cash flows.

We also expect increased regulation and oversight of advanced diagnostic testing in which our products are used, although the timing of such regulation is uncertain after a recent pause by CMS. Under section 218(b) of the Protecting Access to Medicare Act, beginning January 1, 2020, a professional who is ordering advanced diagnostic imaging services (which include MRI, CT, nuclear medicine (including PET) and other advanced diagnostic imaging services that the Secretary of HHS may specify, but not currently including echocardiography) must consult a qualified clinical decision support mechanism, as identified by HHS, to determine whether the ordered service adheres to specified appropriate use criteria (“AUC”) developed or endorsed by CMS-qualified “provider led entities”. Medicare claims for such services must include information indicating whether services ordered would adhere to specified applicable AUC. Denial of claims for failure to include AUC consultation information on the claim form was set to begin on January 1, 2022, but was not implemented by CMS. In the CY 2024 Physician Fee Schedule Final Rule, CMS determined that it was not feasible to fully operationalize the AUC program consistent with the statute within the required time frame. Accordingly, the agency finalized an indefinite pause to the AUC program and the recission of the regulations promulgated thus far to implement the AUC program. While it is unclear when CMS will resume implementation of the AUC program, to the extent that these types of changes have the effect of reducing the aggregate number of diagnostic medical imaging procedures performed in the U.S., our business, results of operations, financial condition and cash flows could be adversely affected.

Medicare coverage of PET radiopharmaceuticals has been the subject of a large number of National Coverage Determinations (“NCDs”) by CMS since 2000. Specific indications for PET imaging were covered, some through Coverage with Evidence Development. CMS’s longtime policy, however, was that a particular use of PET scans is not covered unless an NCD specifically provided that such use was covered. Effective March 7, 2013, CMS revised its policy through an NCD to allow local Medicare Administrative Contractors (“MACs”) to determine coverage within their respective jurisdictions for PET using radiopharmaceuticals for their FDA-approved labeled indications for oncologic imaging. Effective January 1, 2022, non-coverage in the absence of an NCD has also been removed for non-oncologic indications of PET radiopharmaceuticals, allowing MACs to determine coverage for these indications within their respective jurisdictions. To the extent that CMS or the MACs impose more restrictive coverage, our business, results of operations, financial condition and cash flows could be adversely affected.

Risks Related to Our Business Operations and Financial Results

We may not be able to hire or retain the number of qualified personnel, particularly scientific, medical and sales personnel, required for our business, which would harm the expansion of our internal research and development capabilities, sales of our products and approval timelines for and commercialization of our product candidates and limit our ability to grow.

Competition in our industry for highly skilled scientific, healthcare and sales personnel is intense and we may compete with larger pharmaceutical companies that likely will have access to greater financial resources than we do. As we expand our product candidate pipeline and develop and expand our internal research and development capabilities, we will need to continue to hire additional scientific, medical and regulatory personnel. In addition, similar to our approach with the launch and continued growth of PYLARIFY, as we commercialize additional products, we will need to hire additional employees to assist us with such commercialization, including in sales, marketing, reimbursement, quality and medical affairs. Although we have not had any material difficulty in the past in hiring or retaining qualified personnel, if we are unable to retain our existing personnel, or attract and train additional qualified personnel, either because of competition in our industry for these personnel or due to insufficient financial resources, then timelines for the approval and commercialization of our product candidates could be impacted, our growth could be limited and it could have a material adverse effect on our business.

We, or our business partners, may be subject to claims that we, or our partners, have infringed, misappropriated or otherwise violated the patent or other intellectual property rights of a third party. The outcome of any of these claims is uncertain and any unfavorable result could adversely affect our business, financial condition and results of operations.

We, or our business partners, may be subject to claims by third parties that we, or our partners, have infringed, misappropriated or otherwise violated third-party intellectual property rights. We are aware of intellectual property rights held by third parties that relate to products or technologies we are developing. For example, we are aware of other groups investigating PSMA or related compounds and monoclonal antibodies directed at PSMA, and PSMA-targeted imaging agents and therapeutics, and of patents held, and patent applications filed, by these groups in those areas. While the validity of these issued patents, the patentability of pending patent applications and the applicability of any of them to our products and programs are uncertain, if

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asserted against us or our partners, any related patent or other intellectual property rights could adversely affect our ability to commercialize our products.

We may be subject to litigation over infringement claims regarding the products we manufacture or distribute or intend to manufacture or distribute. For example, on January 26, 2024, we were sued in the United States District Court for the District of Delaware by Advanced Accelerator Applications USA, Inc. and Advanced Accelerator Applications SA, each a Novartis entity, for patent infringement in response to the filing of our ANDA for PNT2003 and Paragraph IV certification, consistent with the process established by the Hatch-Waxman Act. This type of litigation can be costly and time consuming and could divert management’s attention and resources, generate significant expenses, damage payments (potentially including treble damages) or restrictions or prohibitions on our use of our technology, which could adversely affect our business, results of operations, financial condition and cash flows. In addition, if we are found to be infringing on proprietary rights of others, we may be required to develop non-infringing technology, obtain a license (which may not be available on reasonable terms, or at all), make substantial one-time or ongoing royalty payments, or cease making, using and/or selling the infringing products, any of which could have a material adverse effect on our business, results of operations, financial condition and cash flows.

Similarly, in June of 2024, Endocycte, Inc., Novartis and Purdue Research Foundation sued POINT and Eli Lilly and Co alleging that POINT’s manufacturing and sale of PNT2002 infringes an Endocyte patent that discloses PSMA-binding conjugates useful for delivery targeted therapeutic, diagnostic and imaging agents, including radiopharmaceuticals. While we have not been named as a party to the lawsuit, if POINT is found to be infringing on proprietary rights of Endocyte, it could prevent or result in a delay in our development and commercialization of PNT2002 or otherwise have an adverse effect on our business, results of operations, financial condition and cash flows.

We may not, or may take longer to, realize the expected benefits and opportunities related to, investments we have made to develop diagnostic product candidates to be used in diagnosing, staging and monitoring Alzheimer’s disease.

On July 15, 2024, we announced that we acquired Meilleur Technologies, Inc, which holds the rights under a license agreement to develop and commercialize NAV-4694, an investigational next-generation F 18-labeled PET imaging agent that targets Beta Amyloid in Alzheimer’s disease. NAV-4694 is currently in Phase 3 development and is also being used in academic and industry investigational therapeutic trials.

Previously, we acquired MK-6240, which is an investigational next-generation F 18-labeled PET imaging agent that targets Tau tangles. Recently, we held a pre-NDA meeting with the FDA and we expect to submit an NDA for MK-6240 in 2025, but we can provide no assurance that we will meet that expected timeline, that our NDA will be accepted by the FDA, that MK-6240 will be approved by the FDA based on the data submitted or that we will be successful in commercializing MK-6240.

While we believe that both MK-6240, as a Tau imaging agent, and NAV-4694, as a Beta Amyloid imaging agent, have the potential to play an important role in diagnosing, staging and monitoring Alzheimer’s disease, we can give no assurance that we will be successful with continued development, regulatory approval and commercialization of these product candidates or that disagreements with the counterparties to our license agreements for MK-6240 and NAV-4694 or the former stockholders of the companies we acquired who could receive future milestone and royalty-based payments will not arise over proprietary rights, contract interpretation or the preferred course of product research, development or marketing that might cause delays or termination of the license agreements, or might result in litigation or arbitration, which could be time-consuming and expensive.

Risks Related to Our Capital Structure

The conditional conversion feature of the 2.625% Convertible Senior Notes due 2027, if triggered, may adversely affect our financial condition and operating results.

On December 8, 2022, we issued $575.0 million in aggregate principal amount of 2.625% Convertible Senior Notes due 2027 (the “Notes”), which included $75.0 million in aggregate principal amount of Notes sold pursuant to the full exercise of the initial purchasers’ option to purchase additional Notes. The Notes were issued under an indenture, dated as of December 8, 2022 (the “Indenture”), among Holdings, LMI, and U.S. Bank Trust Company, National Association (“U.S. Bank”), as Trustee. Prior to the close of business on the business day immediately preceding September 15, 2027, the Notes may be converted at the option of the holders upon occurrence of specified events and during certain periods, and thereafter until the close of business on the business day immediately preceding the maturity date, the Notes may be converted at any time. For example, holders could elect to convert their Notes during a calendar quarter if the trading price of our common stock was greater than or equal to 130% of the conversion price of the Notes (initially $79.81 per share) for at least 20 trading days (whether or not consecutive) during the period of 30 consecutive trading days ending on, and including, the last trading day of the immediately preceding calendar quarter. If one or more holders elect to convert their Notes, unless we elect to satisfy our conversion obligation by arranging for one or more financial institutions to take the Notes from converting holders and pay such holders in accordance with the Indenture, we would

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be required to settle any converted principal amount of such Notes through the payment of cash and by paying or delivering, at our election, cash, shares of our common stock, or a combination of cash and shares, with respect to the remainder of our conversion obligation in excess of the aggregate principal amount of the Notes being converted, which could adversely affect our liquidity. Even if holders do not elect to convert their Notes, we could be required under applicable accounting rules to reclassify all or a portion of the outstanding principal of the Notes as a current rather than long-term liability, which would result in a material reduction of our net working capital, would require us to maintain total liquidity in excess of the principal balance of the Notes and any contingent liabilities due within twelve months and could require us to seek to increase the amount of our 2022 Revolving Credit Facility or seek alternative financing arrangements. In addition, our issuance of additional shares of common stock, if we elect to settle our conversion obligation in excess of the aggregate principal amount of the Notes being converted in shares of common stock (whether in whole or in part), will dilute the ownership interests of our existing common stockholders, including any holders of the Notes who have previously received shares of our common stock upon conversion of their Notes.

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Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Repurchases

The following table presents information with respect to purchases of common stock we made during the three months ended June 30, 2024. In December 2022, in connection with the issuance of the Notes, our Board of Directors authorized the repurchase of up to $150.0 million in aggregate amount of our common stock under certain circumstances, of which $75.0 million were repurchased in December 2022. As of December 31, 2023, the authorization for share buyback expired and no additional shares may be purchased under the program following the expiration date. The 2015 Equity Incentive Plan, adopted by us on June 24, 2015, as amended on April 26, 2016 and as further amended on April 27, 2017, April 24, 2019, April 28, 2021, April 28, 2022 and April 25, 2024 (the “2015 Plan”), provides for the withholding of shares to satisfy tax withholding obligations. It does not specify a maximum number of shares that can be withheld for this purpose. The shares of common stock withheld to satisfy tax withholding obligations may be deemed to be “issuer purchases” of shares that are required to be disclosed pursuant to this Item 2.


Period	Total Number of Shares Purchased	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Programs	Approximate Dollar Value of Shares that May Yet Be Purchased Under the Program
April 2024*	7,879	$	60.48	—	—
May 2024*	4,524	$	79.52	—	—
June 2024*	2,062	$	82.63	—	—
Total	14,465			—	—

________________________________

* Reflects shares withheld to satisfy tax withholding amounts due from employees related to the receipt of stock which resulted from the exercise or vesting of equity awards.

Dividend Policy

We did not declare or pay any dividends, and we do not currently intend to pay dividends in the foreseeable future. We currently expect to retain future earnings, if any, for the foreseeable future, to finance the growth and development of our business and to repay indebtedness. Our ability to pay dividends is restricted by our financing arrangements. See Part I, Item 2. “Management’s Discussion and Analysis of Financial Condition and Results of Operations-Liquidity and Capital Resources-External Sources of Liquidity” for further information.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

Not applicable.

Item 5. Other Information

Rule 10b5-1 Trading Plans

On May 7, 2024, Gérard Ber, a member of our Board, entered into a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act (a “10b5-1 Plan”), providing for the potential sale of up to 15,500 shares of our common stock between September 11, 2024 and April 11, 2025.

On May 21, 2024, James Thrall, a member of our Board, entered into a 10b5-1 Plan providing for the potential sale of up to 2,000 shares of our common stock between August 21, 2024 and January 15, 2025.

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Item 6. Exhibits

INCORPORATED BY REFERENCE

EXHIBIT
NUMBER

DESCRIPTION OF EXHIBITS

FORM

FILE
NUMBER

EXHIBIT

FILING
DATE

10.1

Seventh Amendment to Lantheus Holdings, Inc. 2015 Equity Incentive Plan

8-K

001-36569

10.1

April 29, 2024

10.2*+††

Consulting Agreement by and between Lantheus Medical Imaging, Inc. and Etienne Montagut, effective as of June 7, 2024

31.1*

Certification of Chief Executive Officer pursuant to Exchange Act Rule 13a-14(a).

31.2*

Certification of Chief Financial Officer pursuant to Exchange Act Rule 13a-14(a).

32.1**

Certification pursuant to 18 U.S.C. Section 1350.

101.INS*

Inline XBRL Instance Document

101.SCH*

Inline XBRL Taxonomy Extension Schema Document

101.CAL*

Inline XBRL Taxonomy Extension Calculation Linkbase Document

101.DEF*

Inline XBRL Taxonomy Extension Definition Linkbase Document

101.LAB*

Inline XBRL Taxonomy Extension Label Linkbase Document

101.PRE*

Inline XBRL Taxonomy Extension Presentation Linkbase Document

104*

Cover Page Interactive Data File (embedded within the Inline XBRL document)

* Filed herewith.

** Furnished herewith.

+ Indicates management contract or compensatory plan or arrangement.

†† Portions of this exhibit have been omitted for confidential treatment pursuant to Item 601(b)(10)(iv) of Regulation S-K.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.



LANTHEUS HOLDINGS, INC.

By:						/s/ BRIAN MARKISON
Name:						Brian Markison
Title:						Chief Executive Officer (Principal Executive Officer)
Date:						July 31, 2024

LANTHEUS HOLDINGS, INC.

By:						/s/ ROBERT J. MARSHALL, JR.
Name:						Robert J. Marshall, Jr.
Title:						Chief Financial Officer and Treasurer (Principal Financial Officer)
Date:						July 31, 2024

Exhibit 10.2

Certain identified information has been omitted from this exhibit because it is (i) not material and (ii) of the type that the registrant treats as private or confidential. [***] indicates that information has been omitted.

Execution Version

CONSULTING AGREEMENT

This Consulting Agreement is made by and between Lantheus Medical Imaging, Inc. (together with its affiliates, the “Company”) and Etienne Montagut (“you”) (each of the Company and you, individually, a “Party” and, collectively, the “Parties”), effective as of June 7, 2024 (the “Effective Date”) (this “Agreement”).

Each of the Parties, intending to be legally bound, agree as follows:

1.Consulting Services Engagement. On the Effective Date, the Company hereby engages you as an independent contractor to provide, and you agree to so provide, during the Consulting Period (as defined below), the consulting services described on Exhibit A in accordance with the provisions of this Agreement (collectively, the “Services”).

2.Compensation and Reimbursement.

(a)Subject to your (x) timely execution, delivery and non-revocation of your separation agreement with the Company (as amended, modified or supplemented from time to time by mutual agreement of the Parties, the “Separation Agreement”) and (y) meeting your obligations under this Agreement, the Company will provide you with the following compensation and reimbursement.

(i)For the Services. In consideration for you agreeing to provide and providing the Services in accordance with this Agreement: (A) notwithstanding Section 1(d) of the Separation Agreement (Forfeiture of Unvested Equity Awards), you will be entitled to the continued vesting of Unvested Equity Awards for Services (as defined in, and as described on, Exhibit B); and (B) the Company will reimburse you for your reasonable, pre-approved and documented out-of-pocket expenses incurred during the Consulting Period in accordance with its policies.

(ii)For the Restrictive Covenants. In consideration for you agreeing to and abiding by Section 4 (Restrictive Covenants) in accordance with this Agreement: notwithstanding Section 1(d) of the Separation Agreement (Forfeiture of Unvested Equity Awards), you will be entitled to the continued vesting of Unvested Equity Awards for the Restrictive Covenants (as defined in, and as described on, Exhibit B).

(b)The Parties acknowledge and agree that, except for the Parties entering into and you abiding by this Agreement, you would not otherwise be entitled to or eligible for a consulting relationship with the Company or the compensation provided in this Section 2 (Compensation and Reimbursement). You also agree that all of this consideration was negotiated at arms’ length and constitutes “mutually agreed upon

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consideration” and “fair and reasonable consideration” for the noncompetition covenants set forth in Section 4 (Restrictive Covenants), as may be required by the Massachusetts Noncompetition Agreement Act or other applicable law.

(c)In the event that the Separation Agreement is revoked, then this Agreement, including the compensation and reimbursement set forth in Section 2 (Compensation and Reimbursement), will be null and void, ab initio, without any compensation or reimbursement owed to you.

(d)In addition, the Company agrees to indemnify you pursuant to the terms and conditions of the Indemnification Agreement, such that rendering the Services under and in accordance with this Agreement qualifies as “Corporate Status,” as defined in the Indemnification Agreement and the six-year time period under Section 14(a) of the Indemnification Agreement shall run from the period when you cease rendering Services under and in accordance with this Agreement.

3.Taxes. All taxes on compensation or benefits earned under this Agreement will be your responsibility; provided that the Company will withhold any taxes and remit those on your behalf to appropriate tax authorities if and the extent the Company is required to do so by applicable law.

4.Restrictive Covenants. You agree to abide by (and the compensation set forth in Section 2(a)(ii) (Compensation and Reimbursement for the Restrictive Covenants) is expressly conditioned upon your agreement to, execution of, and compliance with) the Non-Disclosure, Assignment of Inventions and Non-Solicitation Agreement attached as Exhibit C (as amended, modified or supplemented from time to time by mutual agreement of the Parties, collectively, the “NDA”) and the Restrictive Covenant Agreement attached as Exhibit D (as amended, modified or supplemented from time to time by mutual agreement of the Parties, collectively, the “RCA”) (the NDA and the RCA, collectively, the “Restrictive Covenants”), all of which are incorporated into this Agreement by reference as if set forth verbatim. Any breach of the Restrictive Covenants will constitute a material breach of this Agreement, entitling the Company to terminate this Agreement pursuant to Section 9(a)(iii) (Termination for Material Breach).

5.Term of Consulting Services Engagement. Subject to this Agreement not becoming null and void under Section 2(c) (Compensation and Reimbursement), the engagement for Services under this Agreement is effective as of the Effective Date and will continue in full force and effect until the earliest of: (a) the third (3rd) anniversary of the Effective Date; (b) termination in accordance with Section 9 (Termination); or (c) the consummation of a Change of Control (as defined on Exhibit B) (as may be extended by mutual agreement of the Parties from time to time, the “Consulting Period”).

6.Independent Contractor. Any Services you perform will be as an independent contractor and not as an employee or agent of the Company. As such, from and after the Effective Date, you will not be entitled to receive, nor will rendering Services make you eligible to participate in, any benefits or privileges given or extended to the Company’s employees. The Parties further acknowledge and agree that you may not enter into any obligation on the Company’s behalf. When providing Services under this Agreement, you will hold yourself out to be only an advisor or consultant to (but not an employee of) the Company.

7.Representations, Warranties and Covenants. You represent, warrant and covenant to the Company that: (a) you will perform all Services with at least the same degree of diligence and

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care, and in a manner at least commensurate with the same professional standards, as exhibited by distinguished professionals performing similar services in the industries in which the Company operates; (b) you will comply with all laws, regulations and orders and stock exchange requirements; (c) you have not been debarred and, to the best of your knowledge, are not under consideration to be debarred, and will not be debarred, by the U.S. Food and Drug Administration from working in or providing consulting services to any pharmaceutical or biotechnology company under the Generic Drug Enforcement Act of 1992; (d) you are under no contractual or other obligation, restriction or arrangement that breaches, interferes or is inconsistent with, or presents a conflict of interest relating to, this Agreement or your performance of the Services; and (e) during the Consulting Period and thereafter, you will not enter into any agreement or other obligation, restriction or arrangement, either written or oral, that interferes or is inconsistent with, or presents a conflict of interest relating to, your obligations under this Agreement or your performance of the Services. You agree not to disclose to any individual or entity any of the terms of this Agreement (including its Exhibits) or information related to the negotiation or terms of this Agreement; provided, however, that you will not be prohibited from making disclosures to your spouse or domestic partner, attorney or tax advisor or for the sole purpose of disclosing the Restrictive Covenants to a potential employer. You also agree that, when providing any Services to the Company during the Consulting Period, you will not disclose to the Company (or use for the Company’s benefit) any confidential information of Pharmalogic (or other third parties) in violation of any legal or contractual obligation you have to Pharmalogic or such other third party.

8.Records. You will keep accurate records relating to the Services, including quarterly overview records of general activities conducted relating to the Services, which you will produce to the Company on a quarterly basis (via email to the Chief Executive Officer or General Counsel is sufficient). All such records, whether paper or electronic, will be the sole property of the Company and subject to the Company’s review at a mutually agreeable time. Promptly upon the termination or expiration of this Agreement, all such records, whether they were prepared by you solely or jointly with others, any other information and property of the Company and any materials provided to you by the Company, or its designee will be turned over by you to the Company.

9.Termination.

(a)This Agreement may be terminated (i) by you, with or without cause, upon at least twenty (20) business days’ prior written notice to the Company, (ii) by the Company, without cause, upon at least twenty (20) business days’ prior written notice to you, or, (iii) by the Company, in the event you materially breach any provision of this Agreement (including the Restrictive Covenants), immediately upon written notice to you; in all cases, written notice by email is sufficient. In the event this Agreement is terminated, the Company will be under no further obligation to you other than as set forth in Exhibit B.

(b)In the event of expiration or termination of this Agreement, you agree to provide the Company as soon as practicable with all electronic devices, passwords, records (as specified in Section 8 (Records)), reports, materials, deliverables and other information in tangible form in whatever state of completion as of the date of expiration or termination.

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(c)All rights granted to the Company under this Agreement that are expressly indicated to survive termination or expiration of this Agreement or by their nature should survive the termination or expiration of this Agreement will survive the termination or expiration of this Agreement, including Section 3 (Taxes), Section 4 (Restrictive Covenants), Section 7 (Representations, Warranties and Covenants), Section 8 (Records), Section 9 (Termination), Section 10 (Entire Agreement; Amendment), Section 11 (Successors and Assigns), Section 12 (Choice of Law), Section 14 (Interpretational Matter) and Section 15 (Electronic Signatures).

10.Entire Agreement; Amendment. This Agreement (together with all of its exhibits, including the NDA and RCA) contains the entire understanding of the Parties with respect to the subject matter covered thereby and supersede all prior agreements or understandings except as explicitly set forth in this Agreement. For the avoidance of doubt: (a) nothing in this Agreement supersedes (i) the Separation Agreement, except that Section 2(a) (Compensation and Reimbursement) above supersedes Section 1(d) of the Separation Agreement (Forfeiture of Unvested Equity Awards), (ii) any other confidentiality, nonuse, assignment of inventions, noncompetition, non-solicitation, non-disparagement or other similar covenants or agreements previously-executed by the Parties or (iii) the Indemnification Agreement by and among the Company, Lantheus Holdings, Inc. and you, dated as of September 24, 2018 (the “Indemnification Agreement”), except as modified by Section 2(d) (Compensation and Reimbursement). The Parties may, from time to time, during the Consulting Period, modify any of the provisions of this Agreement in a writing duly executed by the Parties.

11.Successors and Assigns. This Agreement is binding upon the Parties and their successors, but is not otherwise assignable.

12.Choice of Law. This Agreement will be construed, governed, interpreted and applied in accordance with the laws of the State of Delaware, without giving effect to the conflicts of laws provision thereof. Any disputes arising between the Parties relating to this Agreement will be subject to the exclusive jurisdiction and venue of the state and federal courts located in the Commonwealth of Massachusetts, and the Parties hereby waive any objection which they may have now or hereafter to the laying of venue of any proceedings in said courts and to any claim that such proceedings have been brought in an inconvenient forum, and further irrevocably agree that a judgment or order in any such proceedings will be conclusive and binding upon each of them and may be enforced in the courts of any other jurisdiction. You and the Company waive the right to a trial by jury with respect to any such dispute or other proceeding.

13.Savings Clause. In the event that any one or more of the provisions of this Agreement (or any of its Exhibits) is held to be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions will not in any way be affected or impaired thereby. Moreover, if any one or more of the provisions contained in this Agreement (or its Exhibits) is held to be excessively broad as to duration, scope or activity or subject, then those provisions will be construed by limiting and reducing them so as to be enforceable to the maximum extent compatible with applicable law.

14.Interpretational Matter. The word “including,” as used in this Agreement, will be construed as meaning “including without limitation.”

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15.Electronic Signatures. Signatures to this Agreement may be delivered by facsimile, by electronic mail (e.g., a “.pdf” file) or by any other electronic means that is intended to preserve the original appearance of the document, and such delivery will have the same effect as the delivery of the paper document bearing the actual, hand-written signatures.

YOU FREELY, KNOWINGLY, AND AFTER DUE CONSIDERATION, ENTER INTO THIS AGREEMENT AFTER HAVING THE OPPORTUNITY TO CONSULT WITH AN ATTORNEY.

[The remainder of this page is left blank intentionally.]

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IN WITNESS WHEREOF, the Parties, intending to be legally bound, have caused this Agreement to be executed, effective as of the Effective Date:

The Company:

Lantheus Medical Imaging, Inc.

By:    /s/ Brian Markison
Name:    Brian Markison
Title:    Chief Executive Officer

You:

/s/ Etienne Montagut
Etienne Montagut

Page 6 of 6

Exhibit A
Services

Specified Transaction Support. Upon the request and at the direction of the Company’s Chief Executive Officer, you will support the Company with respect to identifying, evaluating, analyzing, conducting due diligence for, negotiating, presenting on, entering into and integrating the potential transactions specifically discussed by the Parties immediately prior to the Effective Date, as well as any other potential transactions that are mutually agreed by the Parties from time to time.

Knowledge Transfer. To transfer knowledge, expertise, contacts and business relationships you gained or maintained as Chief Business Officer of the Company, you will make yourself accessible to, and will be reasonably available to provide advice, information, answers, introductions and other relationship building support to the Chief Executive Officer and members of the Business Development and Legal functions (and otherwise as mutually agreed).

Other Services. You will also assist with other services reasonably requested by the Company’s Chief Executive Officer from time to time.

Travel may be required.

As a consultant, you will control the manner and timing of providing such Services. The Company recognizes that you will have full-time employment at PharmaLogic and the Services to be provided under this Agreement shall not unreasonably interfere with such full-time employment.

[The remainder of this page is left blank intentionally.]

Page A-1 of A-1

Exhibit B
Compensation

1.Unvested Equity Awards

[***]

2.Continued Vesting of Unvested Equity Awards

[***]

3.Miscellaneous

(a)Continuing “Service.” The Company hereby waives any requirements under the Plans to provide continuing “Service” (as defined under each of the Plans) to the extent necessary to implement the vesting framework set forth in this Exhibit B. For clarity, any exercise period limitations imposed on your vested but unexercised stock options under the Plans will not begin to run until the end of the Consulting Period or the applicable vesting date, whichever is later.

(b)Earned PSUs. Notwithstanding anything to the contrary above, with respect to Unvested Equity Awards that are performance-based restricted stock units (“PSUs”): (i) the portion (for purposes of clarification, which can be more than 100% under the terms of the Plans), if any, of your “Target PSUs” (as defined in the Plans) that will be deemed to be “Earned PSUs” (as defined in the Plans) will be determined at the same time and in the same manner as for all other holders of PSUs, subject to proration pursuant to Section 2(b) above (Pro Rata Vesting Thereafter), if applicable; and (ii) the date of vesting of the Earned RSUs will be the same as for all other holders of such PSUs.

(c)Forfeiture. Notwithstanding anything to the contrary above, in the event that (i) the Agreement becomes null and void pursuant to Section 2(c) of the Agreement (Compensation and Reimbursement), or (ii) you terminate the Agreement pursuant to Section 9(a)(i) of the Agreement (Termination) other than for the Company’s material breach of the Agreement, or (iii) the Company terminates the Agreement for your material breach pursuant to Section 9(a)(iii) of the Agreement (Termination for Material Breach), then all then-remaining Unvested Equity Awards will be forfeited immediately for no consideration due to you.

(d)Stock Transaction Requirements. You will follow the Company’s insider trading policies and procedures, including by preclearing your stock transactions and transacting in Company stock only under a Rule 10b5-1 trading plan.

Page B-1 of B-1

Exhibit C
Non-Disclosure, Assignment of Inventions and Non-Solicitation Agreement
(Fully Executed Version)

Page C-1 of C-1

Exhibit D
Restrictive Covenant Agreement
(Fully Executed Version)

Page D-1 of D-1

Exhibit 31.1

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Brian Markison, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Lantheus Holdings, Inc.;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a. All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 31, 2024



						/s/ BRIAN MARKISON
Name:						Brian Markison
Title:						Chief Executive Officer
						(Principal Executive Officer)

Exhibit 31.2

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO

SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Robert J. Marshall, Jr., certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of Lantheus Holdings, Inc.;

b.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: July 31, 2024



						/s/ ROBERT J. MARSHALL, JR.
Name:						Robert J. Marshall, Jr.
Title:						Chief Financial Officer and Treasurer
						(Principal Financial Officer)

Exhibit 32.1

CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, Brian Markison, the Chief Executive Officer, and Robert J. Marshall, Jr., the Chief Financial Officer, of Lantheus Holdings, Inc. (the “Company”), hereby certify, that, to their knowledge:

1.The Quarterly Report on Form 10-Q for the period ended June 30, 2024 (the “Report”) of the Company fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: July 31, 2024



						/s/ BRIAN MARKISON
Name:						Brian Markison
Title:						Chief Executive Officer
						(Principal Executive Officer)

Date: July 31, 2024



						/s/ ROBERT J. MARSHALL, JR.
Name:						Robert J. Marshall, Jr.
Title:						Chief Financial Officer and Treasurer
						(Principal Financial Officer)

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

Cover Page - shares	6 Months Ended
Cover Page - shares	Jun. 30, 2024	Jul. 25, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-36569
Entity Registrant Name	LANTHEUS HOLDINGS, INC.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	35-2318913
Entity Address, Address Line One	201 Burlington Road, South Building
Entity Address, Postal Zip Code	01730
Entity Address, City or Town	Bedford,
Entity Address, State or Province	MA
City Area Code	(978)
Local Phone Number	671-8001
Title of 12(b) Security	Common stock, par value $0.01 per share
Trading Symbol	LNTH
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		69,430,642
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001521036
Current Fiscal Year End Date	--12-31

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 757,018	$ 713,656
Accounts receivable, net	372,288	284,292
Inventory	70,516	64,029
Other current assets	24,165	16,683
Assets held for sale	7,159	7,159
Total current assets	1,231,146	1,085,819
Investment in equity securities	116,423	0
Property, plant and equipment, net	158,158	146,697
Intangibles, net	172,239	151,985
Goodwill	61,189	61,189
Deferred tax assets, net	151,185	150,198
Other long-term assets	49,491	55,261
Total assets	1,939,831	1,651,149
Current liabilities
Current portion of long-term debt and other borrowings	868	823
Accounts payable	49,774	41,189
Accrued expenses and other liabilities	212,643	145,338
Total current liabilities	263,285	187,350
Asset retirement obligations	23,130	22,916
Long-term debt, net and other borrowings	563,188	561,670
Other long-term liabilities	63,543	63,321
Total liabilities	913,146	835,257
Commitments and contingencies (See Note 18)
Stockholders’ equity
Preferred stock ($0.01 par value, 25,000 shares authorized; no shares issued and outstanding)	0	0
Common stock ($0.01 par value, 250,000 shares authorized; 70,750 and 69,863 shares issued as of June 30, 2024 and December 31, 2023, respectively)	708	699
Additional paid-in capital	775,545	757,727
Treasury Stock at cost - 1,339 shares as of June 30, 2024 and December 31, 2023	(75,000)	(75,000)
Retained earnings	326,642	133,503
Accumulated other comprehensive loss	(1,210)	(1,037)
Total stockholders’ equity	1,026,685	815,892
Total liabilities and stockholders’ equity	$ 1,939,831	$ 1,651,149

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Jun. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	25,000,000	25,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	250,000,000	250,000,000
Common stock, shares issued (in shares)	70,750,000	69,863,000
Common stock, shares outstanding (in shares)	70,750,000	69,863,000
Treasury stock, shares (in shares)	1,339,000	1,339,000

Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Statement [Abstract]
Revenues	$ 394,091	$ 321,700	$ 764,066	$ 622,484
Cost of goods sold	138,317	119,053	266,446	342,761
Gross profit	255,774	202,647	497,620	279,723
Operating expenses
Sales and marketing	45,035	36,456	90,581	69,073
General and administrative	47,409	26,151	95,304	49,422
Research and development	60,601	15,901	108,625	46,433
Total operating expenses	153,045	78,508	294,510	164,928
Gain on sale of assets	0	0	6,254	0
Operating income	102,729	124,139	209,364	114,795
Interest expense	4,862	4,933	9,721	9,924
Investment in equity securities - unrealized loss (gain)	22,537	0	(38,167)	0
Other income	(9,044)	(4,482)	(17,832)	(7,713)
Income before income taxes	84,374	123,688	255,642	112,584
Income tax expense	22,301	29,557	62,503	21,260
Net income	$ 62,073	$ 94,131	$ 193,139	$ 91,324
Net income per common share:
Basic (in dollars per share)	$ 0.89	$ 1.38	$ 2.80	$ 1.34
Diluted (in dollars per share)	$ 0.88	$ 1.33	$ 2.74	$ 1.31
Weighted-average common shares outstanding:
Basic (in shares)	69,356	68,371	69,056	68,062
Diluted (in shares)	70,601	71,014	70,364	69,957

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 62,073	$ 94,131	$ 193,139	$ 91,324
Other comprehensive income (loss):
Foreign currency translation	(32)	426	(173)	307
Comprehensive income	$ 62,041	$ 94,557	$ 192,966	$ 91,631

Condensed Consolidated Statements of Changes in Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)
Beginning balance (in shares) at Dec. 31, 2022		68,851
Beginning balance at Dec. 31, 2022	$ 447,147	$ 689	$ (75,000)	$ 715,875	$ (193,158)	$ (1,259)
Beginning balance, treasury stock (in shares) at Dec. 31, 2022			1,339
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(2,807)				(2,807)
Other comprehensive (loss) income	(119)					(119)
Stock option exercises and employee stock plan purchases (in shares)		120
Stock option exercises and employee stock plan purchases	2,782	$ 1		2,781
Vesting of restricted stock awards and units (in shares)		813
Vesting of restricted stock awards and units	0	$ 8		(8)
Shares withheld to cover taxes (in shares)		(154)
Shares withheld to cover taxes	(11,154)	$ (2)		(11,152)
Stock-based compensation	9,667			9,667
Ending balance (in shares) at Mar. 31, 2023		69,630
Ending balance at Mar. 31, 2023	445,516	$ 696	$ (75,000)	717,163	(195,965)	(1,378)
Ending balance, treasury stock (in shares) at Mar. 31, 2023			1,339
Beginning balance (in shares) at Dec. 31, 2022		68,851
Beginning balance at Dec. 31, 2022	447,147	$ 689	$ (75,000)	715,875	(193,158)	(1,259)
Beginning balance, treasury stock (in shares) at Dec. 31, 2022			1,339
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	91,324
Ending balance (in shares) at Jun. 30, 2023		69,755
Ending balance at Jun. 30, 2023	552,645	$ 698	$ (75,000)	729,733	(101,834)	(952)
Ending balance, treasury stock (in shares) at Jun. 30, 2023			1,339
Beginning balance (in shares) at Mar. 31, 2023		69,630
Beginning balance at Mar. 31, 2023	445,516	$ 696	$ (75,000)	717,163	(195,965)	(1,378)
Beginning balance, treasury stock (in shares) at Mar. 31, 2023			1,339
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	94,131				94,131
Other comprehensive (loss) income	426					426
Stock option exercises and employee stock plan purchases (in shares)		73
Stock option exercises and employee stock plan purchases	1,347	$ 1		1,346
Vesting of restricted stock awards and units (in shares)		68
Vesting of restricted stock awards and units	0	$ 1		(1)
Shares withheld to cover taxes (in shares)		(16)
Shares withheld to cover taxes	(1,467)			(1,467)
Stock-based compensation	12,692			12,692
Ending balance (in shares) at Jun. 30, 2023		69,755
Ending balance at Jun. 30, 2023	$ 552,645	$ 698	$ (75,000)	729,733	(101,834)	(952)
Ending balance, treasury stock (in shares) at Jun. 30, 2023			1,339
Beginning balance (in shares) at Dec. 31, 2023	69,863	69,863
Beginning balance at Dec. 31, 2023	$ 815,892	$ 699	$ (75,000)	757,727	133,503	(1,037)
Beginning balance, treasury stock (in shares) at Dec. 31, 2023	1,339		1,339
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 131,066				131,066
Other comprehensive (loss) income	(141)					(141)
Stock option exercises and employee stock plan purchases (in shares)		86
Stock option exercises and employee stock plan purchases	2,757	$ 1		2,756
Vesting of restricted stock awards and units (in shares)		988
Vesting of restricted stock awards and units	0	$ 9		(9)
Shares withheld to cover taxes (in shares)		(302)
Shares withheld to cover taxes	(19,418)	$ (3)		(19,415)
Stock-based compensation	15,384			15,384
Ending balance (in shares) at Mar. 31, 2024		70,635
Ending balance at Mar. 31, 2024	$ 945,540	$ 706	$ (75,000)	756,443	264,569	(1,178)
Ending balance, treasury stock (in shares) at Mar. 31, 2024			1,339
Beginning balance (in shares) at Dec. 31, 2023	69,863	69,863
Beginning balance at Dec. 31, 2023	$ 815,892	$ 699	$ (75,000)	757,727	133,503	(1,037)
Beginning balance, treasury stock (in shares) at Dec. 31, 2023	1,339		1,339
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	$ 193,139
Ending balance (in shares) at Jun. 30, 2024	70,750	70,750
Ending balance at Jun. 30, 2024	$ 1,026,685	$ 708	$ (75,000)	775,545	326,642	(1,210)
Ending balance, treasury stock (in shares) at Jun. 30, 2024	1,339		1,339
Beginning balance (in shares) at Mar. 31, 2024		70,635
Beginning balance at Mar. 31, 2024	$ 945,540	$ 706	$ (75,000)	756,443	264,569	(1,178)
Beginning balance, treasury stock (in shares) at Mar. 31, 2024			1,339
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	62,073				62,073
Other comprehensive (loss) income	(32)					(32)
Stock option exercises and employee stock plan purchases (in shares)		68
Stock option exercises and employee stock plan purchases	1,549	$ 1		1,548
Vesting of restricted stock awards and units (in shares)		58
Vesting of restricted stock awards and units	0	$ 1		(1)
Shares withheld to cover taxes (in shares)		(11)
Shares withheld to cover taxes	(924)			(924)
Stock-based compensation	$ 18,479			18,479
Ending balance (in shares) at Jun. 30, 2024	70,750	70,750
Ending balance at Jun. 30, 2024	$ 1,026,685	$ 708	$ (75,000)	$ 775,545	$ 326,642	$ (1,210)
Ending balance, treasury stock (in shares) at Jun. 30, 2024	1,339		1,339

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Operating activities
Net income	$ 193,139	$ 91,324
Adjustments to reconcile net income to net cash flows from operating activities:
Depreciation, amortization and accretion	30,264	30,375
Impairment of long-lived assets	0	138,050
Amortization of debt related costs	2,145	2,155
Changes in fair value of contingent assets and liabilities	100	(8,975)
Provision for excess and obsolete inventory	1,925	3,179
Stock-based compensation	33,863	22,359
Gain on disposal of assets	(6,254)	0
Unrealized gain on investment in equity securities	(38,167)	0
Charges incurred in connection with acquired IPR&D	66,000	0
Deferred taxes	(7,629)	(39,616)
Long-term indemnification receivable	0	(327)
Long-term income tax payable and other long-term liabilities	1,588	1,386
Other	4,582	1,735
Changes in assets and liabilities which provided (used) cash:
Accounts receivable	(88,028)	(39,078)
Inventory	(7,975)	(19,255)
Other current assets	3,166	(9,260)
Other long-term assets	(353)	0
Accounts payable	6,873	14,186
Accrued expenses and other liabilities	16,719	(112,004)
Net cash provided by operating activities	211,958	76,234
Investing activities
Capital expenditures	(19,448)	(19,865)
Acquisition of assets, net	(33,911)	(45,345)
Proceeds from sale of assets	8,000	0
Purchases of investment in equity securities	(78,256)	0
Acquisition of exclusive license option	(28,000)	0
Net cash used in investing activities	(151,615)	(65,210)
Financing activities
Payments on long-term debt and other borrowings	(628)	(528)
Contingent value rights settlement	0	(3,700)
Proceeds from stock option exercises	2,483	3,189
Proceeds from issuance of common stock	1,823	940
Payments for minimum statutory tax withholding related to net share settlement of equity awards	(20,424)	(12,621)
Net cash used in financing activities	(16,746)	(12,720)
Effect of foreign exchange rates on cash, cash equivalents and restricted cash	(213)	139
Net increase (decrease) in cash, cash equivalents and restricted cash	43,384	(1,557)
Cash, cash equivalents and restricted cash, beginning of period	715,285	417,241
Cash, cash equivalents and restricted cash, end of period	758,669	415,684
Reconciliation to amounts within the condensed consolidated balance sheets
Cash and cash equivalents	757,018	414,076
Restricted cash included in other long-term assets	1,651	1,608
Cash, cash equivalents and restricted cash at end of period	758,669	415,684
Schedule of non-cash investing and financing activities
Additions of property, plant and equipment included in liabilities	7,937	9,826
Acquisition of IPR&D included in liabilities	37,000	0
Lease liability settled through transfer of lease	$ 376	$ 0

Basis of Presentation	6 Months Ended
Basis of Presentation	Jun. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	1. Basis of Presentation The accompanying unaudited condensed consolidated financial statements include the accounts of Lantheus and have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these condensed consolidated financial statements do not include all of the information and notes required by generally accepted accounting principles in the United States (“U.S. GAAP”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal and recurring adjustments) considered necessary for a fair statement have been included. The results of operations for the three and six months ended June 30, 2024 are not necessarily indicative of the results that may be expected for the year ended December 31, 2024 or any future period. The condensed consolidated balance sheet at December 31, 2023 has been derived from the audited consolidated financial statements at that date but does not include all the information and notes required by U.S. GAAP for complete financial statements. These condensed consolidated financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and notes thereto included in Item 8 of the Company’s most recent Annual Report on Form 10-K for the year ended December 31, 2023 filed with the Securities Exchange Commission (“SEC”) on February 22, 2024. Progenics Acquisition On June 19, 2020 (the “Closing Date”), pursuant to the Amended and Restated Agreement and Plan of Merger, dated as of February 20, 2020 (the “Merger Agreement”), by and among Lantheus Holdings, Plato Merger Sub, Inc., a wholly-owned subsidiary of Lantheus Holdings (“Merger Sub”), and Progenics, Lantheus Holdings completed the acquisition of Progenics by means of a merger of Merger Sub with and into Progenics, with Progenics becoming an indirect subsidiary of Lantheus Holdings following the completion of such merger (the “Progenics Acquisition”). In connection with the Progenics Acquisition, Lantheus Holdings issued 26,844,877 shares of Lantheus Holdings common stock and 86,630,633 contingent value rights (each a “CVR”) tied to the financial performance of PYLARIFY to former Progenics stockholders and option holders. Each CVR entitled its holder to receive a pro rata share of aggregate cash payments equal to 40% of United States (“U.S.”) net sales generated by PYLARIFY in 2022 and 2023 in excess of $100.0 million and $150.0 million, respectively. The Company’s aggregate payments in respect of the CVRs, together with any other non-stock consideration treated as paid in connection with the Progenics Acquisition, was capped at 19.9% of the total consideration the Company paid in the Progenics Acquisition. Based on the Company’s 2022 PYLARIFY net sales, the Company determined that the aggregate payment obligation under the CVRs was $99.6 million, which was the maximum amount payable. The Company paid out this amount in May 2023 in full satisfaction of the CVRs.

Summary of Significant Accounting Policies	6 Months Ended
Summary of Significant Accounting Policies	Jun. 30, 2024
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	2. Summary of Significant Accounting Policies Investments Equity investments with readily determinable fair values for which the Company does not have significant influence over the investee are measured at fair value on a recurring basis. Equity investments without readily determinable fair values for which the Company does not have significant influence over the investee are measured at cost with adjustments for observable changes in price or impairments (referred to as the measurement alternative). For equity investments for which the Company does not have significant influence over the investee, changes in the value of unsold equity investments are recorded in investment in equity securities – unrealized gain (loss). Equity investments for which the Company has significant influence over the investee are measured using the equity method unless the Company elects to apply the fair value option to account for the investment. Recent Accounting Pronouncements In December 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires all public entities, including public entities with a single reportable segment, to provide in interim and annual periods one or more measures of segment profit or loss used by the chief operating decision maker to allocate resources and assess performance. Additionally, the standard requires disclosures of significant segment expenses and other segment items as well as incremental qualitative disclosures. The guidance in this update is effective for fiscal years beginning after December 15, 2023, and interim periods after December 15, 2024. The Company is currently in the process of evaluating the effects of this pronouncement on our related disclosures. In December 2023, the FASB also issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires enhanced income tax disclosures, including specific categories and disaggregation of information in the effective tax rate reconciliation, disaggregated information related to income taxes paid, income or loss from continuing operations before income tax expense or benefit, and income tax expense or benefit from continuing operations. The requirements of the ASU are effective for annual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently in the process of evaluating the impact of this pronouncement on our related disclosures.

Revenue from Contracts with Customers

6 Months Ended

Jun. 30, 2024

Revenue from Contract with Customer [Abstract]

Revenue from Contracts with Customers

3. Revenue from Contracts with Customers

The following table summarizes revenue by revenue source as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
Major Products/Service Lines (in thousands)	2024		2023		2024		2023
Product revenue, net(1)	$	392,756	$	314,084	$	762,069	$	606,340
License and royalty revenues	1,335		7,616		1,997		16,144
Total revenues	$	394,091	$	321,700	$	764,066	$	622,484

________________________________

Revenue by product category on a net basis is as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2024		2023		2024		2023
PYLARIFY	$	273,255	$	210,522	$	532,125	$	405,992
Other radiopharmaceutical oncology	—		818		384		1,535
Total radiopharmaceutical oncology	273,255		211,340		532,509		407,527
DEFINITY	78,100		70,529		154,664		139,353
TechneLite	28,186		21,594		49,900		42,580
Other precision diagnostics	5,825		5,454		11,757		11,261
Total precision diagnostics	112,111		97,577		216,321		193,194
Strategic partnerships and other revenue	8,725		12,783		15,236		21,763
Total revenues	$	394,091	$	321,700	$	764,066	$	622,484

Fair Value of Financial Instruments

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

4. Fair Value of Financial Instruments

•Level 1 — Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that the Company has the ability to access at the measurement date.

The tables below present information about the Company’s assets and liabilities measured at fair value on a recurring basis:


	June 30, 2024
(in thousands)	Total Fair Value		Level 1		Level 2		Level 3
Assets:
Money market funds	$	575,974	$	575,974	$	—	$	—
Investment securities	116,423		116,423		—		—

Total assets	$	692,397	$	692,397	$	—	$	—
Liabilities:
Contingent consideration liabilities	$	2,800	$	—	$	—	$	2,800
Total liabilities	$	2,800	$	—	$	—	$	2,800


	December 31, 2023
(in thousands)	Total Fair Value		Level 1		Level 2		Level 3
Assets:
Money market funds	$	574,131	$	574,131	$	—	$	—


Total assets	$	574,131	$	574,131	$	—	$	—
Liabilities:
Contingent consideration liabilities	$	2,700	$	—	$	—	$	2,700
Total liabilities	$	2,700	$	—	$	—	$	2,700

During the three and six months ended June 30, 2024, there were no transfers into or out of Level 3.

The following tables summarize quantitative information and assumptions pertaining to the fair value measurement of liabilities using Level 3 inputs at June 30, 2024.


	Fair Value at						Assumptions
(in thousands)	June 30, 2024		December 31, 2023		Valuation Technique	Unobservable Input	June 30, 2024		December 31, 2023
Contingent consideration liability:



1095 commercialization milestone	1,800		1,800		Probability adjusted discounted cash flow model
						Period of expected milestone achievement	2026		2026
						Probability of success	40	%	40	%
						Discount rate	4.5	%	4.1	%



Net sales targets - AZEDRA and 1095	1,000		900		Monte Carlo simulation
						Probability of success and sales targets	0% - 40%		0% - 40%
						Discount rate	15%		15%
Total	$	2,800	$	2,700

For those financial instruments with significant Level 3 inputs, the following table summarizes the activities for the periods indicated:


	Financial Liabilities
(in thousands)	Six Months Ended June 30,
		2024		2023
Fair value, beginning of period		$	2,700	$	111,600

Changes in fair value included in net income		100		(8,975)
Cash payments		—		(99,625)
Fair value, end of period		$	2,800	$	3,000

Income Taxes

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

Income Taxes

5. Income Taxes


	Three Months Ended June 30,						Six Months Ended June 30,
(in thousands)	2024			2023			2024			2023
Income tax expense	$	22,301		$	29,557		$	62,503		$	21,260
Effective tax rate	26.4		%	23.9		%	24.4		%	18.9		%

Inventory

6 Months Ended

Jun. 30, 2024

Inventory Disclosure [Abstract]

Inventory

6. Inventory

Inventory consisted of the following:


(in thousands)	June 30, 2024		December 31, 2023
Raw materials	$	29,571	$	31,259
Work in process	20,108		13,807
Finished goods	20,837		18,963
Total inventory	$	70,516	$	64,029

Property, Plant and Equipment, Net

6 Months Ended

Jun. 30, 2024

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment, Net

7. Property, Plant and Equipment, Net

Property, plant and equipment, net, consisted of the following:


(in thousands)	June 30, 2024		December 31, 2023
Land	$	9,480	$	9,480
Buildings	78,040		73,441
Machinery, equipment and fixtures	103,772		102,576
Computer software	52,601		27,259
Construction in progress	26,648		40,964
	270,541		253,720
Less: accumulated depreciation and amortization	(112,383)		(107,023)
Total property, plant and equipment, net	$	158,158	$	146,697

See Note 19, "Acquisition of Assets" for further discussion of the Perspective transaction.

Long-Lived Assets Held for Sale

Accrued Expenses, Other Liabilities and Other Long-Term Liabilities

6 Months Ended

Jun. 30, 2024

Payables and Accruals [Abstract]

Accrued Expenses, Other Liabilities and Other Long-Term Liabilities

8. Accrued Expenses, Other Liabilities and Other Long-Term Liabilities

Accrued expenses, other liabilities and other long-term liabilities are comprised of the following:


(in thousands)	June 30, 2024		December 31, 2023
Compensation and benefits	$	30,629	$	36,331
Freight, distribution and operations	85,778		67,529
Accrued rebates, discounts and chargebacks	17,247		16,070
Accrued professional fees	18,819		10,244
Accrued research and development expenses	43,371		3,258
Other	16,799		11,906
Total accrued expenses and other liabilities	$	212,643	$	145,338

Operating lease liabilities (Note 15)	$	54,125	$	54,453
Long-term contingent liabilities (Note 4)	2,800		2,700
Other long-term liabilities	6,618		6,168
Total other long-term liabilities	$	63,543	$	63,321

Asset Retirement Obligations

6 Months Ended

Jun. 30, 2024

Asset Retirement Obligation Disclosure [Abstract]

Asset Retirement Obligations

9. Asset Retirement Obligations

The following table provides a summary of the changes in the Company’s carrying value of asset retirement obligations:


(in thousands)	Amount
Balance at January 1, 2024	$	22,916
Accretion expense	214

Balance at June 30, 2024	$	23,130

Intangibles, Net

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Intangibles, Net

10. Intangibles, Net

Intangibles, net, consisted of the following:


	June 30, 2024
(in thousands)	Useful Lives (in years)	Amortization Method	Cost		Accumulated Amortization		Net
Trademarks	15 - 25	Straight-Line	$	13,540	$	(12,289)	$	1,251
Customer relationships	15 - 25	Accelerated	157,901		(127,143)		30,758

Currently marketed products	9 - 15	Straight-Line	132,800		(45,655)		87,145
Licenses	11 - 16	Straight-Line	22,233		(10,587)		11,646
Developed technology	7 - 9	Straight-Line	42,706		(1,267)		41,439

Total			$	369,180	$	(196,941)	$	172,239


	December 31, 2023
(in thousands)	Useful Lives (in years)	Amortization Method	Cost		Accumulated Amortization		Net
Trademarks	15 - 25	Straight-Line	$	13,540	$	(12,216)	$	1,324
Customer relationships	15 - 25	Accelerated	157,995		(117,574)		40,421
Currently marketed products	9 - 15	Straight-Line	132,800		(38,277)		94,523
Licenses	11 - 16	Straight-Line	22,233		(7,972)		14,261
Developed technology	9	Straight-Line	2,400		(944)		1,456

Total			$	328,968	$	(176,983)	$	151,985

The below table summarizes the estimated aggregate amortization expense expected to be recognized on the above intangible assets:


(in thousands)	Amount
Remainder of 2024	$	22,741
2025	30,167
2026	30,965
2027	25,438
2028	21,953
2029 and thereafter	40,975
Total	$	172,239

Long-Term Debt, Net, and Other Borrowings

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Long-Term Debt, Net, and Other Borrowings

11. Long-Term Debt, Net, and Other Borrowings

As of June 30, 2024, the Company’s maturities of principal obligations under its long-term debt and other borrowings are as follows:


(in thousands)	Amount
Remainder of 2024	$	—
2025	—
2026	—
2027	575,000


Total principal outstanding	575,000

Unamortized debt issuance costs	(12,174)

Finance lease liabilities	1,230

Total	564,056
Less: current portion	(868)
Total long-term debt, net and other borrowings	$	563,188

2022 Revolving Facility

2022 Facility Covenants

Convertible Notes

The Company evaluated the Notes upon completion of the sale and concluded on the following features:

Derivative Instruments	6 Months Ended
Derivative Instruments	Jun. 30, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments	12. Derivative Instruments The Company has used, but does not currently use, interest rate swaps to reduce the variability in cash flows associated with portions of the Company’s interest payments on variable rate debt.

Accumulated Other Comprehensive (Loss) Income

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Accumulated Other Comprehensive (Loss) Income

13. Accumulated Other Comprehensive (Loss) Income

The components of accumulated other comprehensive (loss) income, net of tax of zero for the six months ended June 30, 2024 and 2023 consisted of the following:


(in thousands)	Foreign currency translation		Accumulated other comprehensive (loss)
Balance at January 1, 2024	$	(1,037)	$	(1,037)
Other comprehensive loss before reclassifications	(173)		(173)

Balance at June 30, 2024	$	(1,210)	$	(1,210)

Balance at January 1, 2023	$	(1,259)	$	(1,259)
Other comprehensive income before reclassifications	307		307

Balance at June 30, 2023	$	(952)	$	(952)

Stock-Based Compensation

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

14. Stock-Based Compensation

The following table presents stock-based compensation expense recognized in the Company’s accompanying condensed consolidated statements of operations:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2024		2023		2024		2023
Cost of goods sold	$	2,870	$	2,231	$	5,502	$	3,873
Sales and marketing	3,076		1,959		5,868		4,221
General and administrative	9,768		6,670		17,531		11,072
Research and development	2,765		1,832		4,962		3,193
Total stock-based compensation expense	$	18,479	$	12,692	$	33,863	$	22,359

Leases

6 Months Ended

Jun. 30, 2024

Leases [Abstract]

Leases

15. Leases

Operating and finance lease assets and liabilities are as follows:


(in thousands)	Classification	June 30, 2024		December 31, 2023
Assets
Operating	Other long-term assets	$	42,541	$	45,325
Finance	Property, plant and equipment, net	1,427		1,438
Total leased assets		$	43,968	$	46,763
Liabilities
Current
Operating	Accrued expenses and other liabilities	$	2,094	$	1,904
Finance	Current portion of long-term debt and other borrowings	868		823
Noncurrent
Operating	Other long-term liabilities	54,125		54,453
Finance	Long-term debt, net and other borrowings	362		625
Total leased liabilities		$	57,449	$	57,805

Other information related to leases were as follows:


	June 30, 2024	December 31, 2023
Weighted-average remaining lease term (Years):
Operating leases	13.2	13.5
Finance leases	2.4	2.3
Weighted-average discount rate:
Operating leases	7.4%	7.3%
Finance leases	7.4%	6.2%

Leases

15. Leases

Operating and finance lease assets and liabilities are as follows:


(in thousands)	Classification	June 30, 2024		December 31, 2023
Assets
Operating	Other long-term assets	$	42,541	$	45,325
Finance	Property, plant and equipment, net	1,427		1,438
Total leased assets		$	43,968	$	46,763
Liabilities
Current
Operating	Accrued expenses and other liabilities	$	2,094	$	1,904
Finance	Current portion of long-term debt and other borrowings	868		823
Noncurrent
Operating	Other long-term liabilities	54,125		54,453
Finance	Long-term debt, net and other borrowings	362		625
Total leased liabilities		$	57,449	$	57,805

Other information related to leases were as follows:


	June 30, 2024	December 31, 2023
Weighted-average remaining lease term (Years):
Operating leases	13.2	13.5
Finance leases	2.4	2.3
Weighted-average discount rate:
Operating leases	7.4%	7.3%
Finance leases	7.4%	6.2%

Net Income Per Common Share

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Net Income Per Common Share

16. Net Income Per Common Share

A summary of net income per common share is presented below:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except per share amounts)	2024		2023		2024		2023
Net income	$	62,073	$	94,131	$	193,139	$	91,324

Basic weighted-average common shares outstanding	69,356		68,371		69,056		68,062
Effect of dilutive stock options	256		399		246		391
Effect of dilutive restricted stock	989		1,447		1,062		1,504
Effect of convertible notes	—		797		—		—
Diluted weighted-average common shares outstanding	70,601		71,014		70,364		69,957

Basic income per common share	$	0.89	$	1.38	$	2.80	$	1.34
Diluted income per common share	$	0.88	$	1.33	$	2.74	$	1.31

Antidilutive securities excluded from diluted net income per common share	845		349		1,219		389

Impact of the Convertible Notes

Other Income

6 Months Ended

Jun. 30, 2024

Other Income and Expenses [Abstract]

Other Income

17. Other Income

Other income consisted of the following:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2024		2023		2024		2023
Foreign currency (gain) loss	$	455	$	(224)	$	238	$	22
Tax indemnification income, net	—		(232)		—		(328)
Interest income	(8,924)		(4,027)		(17,472)		(7,550)

Other	(575)		1		(598)		143
Total other income, net	$	(9,044)	$	(4,482)	$	(17,832)	$	(7,713)

Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2024
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	18. Commitments and Contingencies Legal Proceedings From time to time, the Company is a party to various legal proceedings arising in the ordinary course of business. In addition, the Company has in the past been, and may in the future be, subject to investigations by governmental and regulatory authorities, which expose it to greater risks associated with litigation, regulatory or other proceedings, as a result of which the Company could be required to pay significant fines or penalties. The costs and outcome of litigation, regulatory or other proceedings cannot be predicted with certainty, and some lawsuits, claims, actions or proceedings may be disposed of unfavorably to the Company and could have a material adverse effect on the Company’s results of operations or financial condition. In addition, intellectual property disputes often have a risk of injunctive relief which, if imposed against the Company, could materially and adversely affect its financial condition or results of operations. If a matter is both probable to result in material liability and the amount of loss can be reasonably estimated, the Company estimates and discloses the possible material loss or range of loss. If such loss is not probable or cannot be reasonably estimated, a liability is not recorded in its condensed consolidated financial statements. As of June 30, 2024, the Company did not have any material ongoing litigation to which the Company was a party. On January 26, 2024, the Company was sued in the United States District Court for the District of Delaware by Advanced Accelerator Applications USA, Inc. and Advanced Accelerator Applications SA, each a Novartis entity, for patent infringement in response to the filing of the Company’s Abbreviated New Drug Application (“ANDA”) and Paragraph IV certification in connection with PNT2003, consistent with the process established by the Hatch-Waxman Act. Because the outcome of litigation is uncertain, the Company cannot predict how or when this matter will ultimately be resolved.

Acquisition of Assets	6 Months Ended
Acquisition of Assets	Jun. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Acquisition of Assets	19. Acquisition of Assets On February 6, 2023, the Company acquired Cerveau. Cerveau holds the rights under a license agreement to develop and commercialize MK-6240, an investigational second-generation F 18-labeled positron emission tomography (“PET”) imaging agent that targets Tau tangles in Alzheimer’s disease. The Company determined that upon review of the Cerveau acquisition, the transaction did not meet the definition of a business combination and is therefore treated as an asset acquisition. In February 2023, the Company made an upfront payment of approximately $35.3 million to the Cerveau Stockholders (the “Selling Stockholders”) and paid the Selling Stockholders an additional $10.0 million in May 2023 upon the successful completion of a technology transfer. The Company could pay up to an additional $51.0 million in milestone payments upon achievement of specified U.S. regulatory milestones related to MK-6240. The Selling Stockholders are also eligible to receive up to $1.2 billion in sales milestone payments upon the achievement of specified annual commercial sales thresholds of MK-6240 in the event the Company pursues commercialization, as well as up to $13.5 million in research revenue milestones upon achievement of specified annual research revenue thresholds. Additionally, the Company will pay to the Selling Stockholders up to double-digit royalty payments for research revenue and commercial sales. Research revenue is derived from existing partnerships with pharmaceutical companies that use MK-6240 in clinical trials. The purchase agreement pursuant to which the Company purchased Cerveau specified, among other things, that certain Selling Stockholders provide transition and clinical development services for a prescribed time following the closing of the transaction. On January 8, 2024, the Company entered into an agreement with Perspective to participate in the next qualified financing to purchase shares of Perspective common stock (“Perspective Shares”). On January 22, 2024, the Company purchased 56,342,355 Perspective Shares, representing 11.39% of the outstanding shares of Perspective common stock, at the fair market offering price of $0.37 per share. Included within the agreement is a covenant which allows for the Company to designate one observer to Perspective’s board of directors. The observer has the option to attend any or all board meetings in a nonvoting capacity and the right to receive any board materials, except under certain instances where attorney-client privilege is necessary, where the material relates to business or contractual relationship with the Company, to avoid bona fide conflict of interest, exposure of trade secrets or relating to a change of control transaction. The Company also purchased 60,431,039 Perspective Shares at a fair market purchase price of $0.95 per share as an investor in a private placement transaction on March 6, 2024, which resulted in the Company holding a cumulative 19.90% of the outstanding Perspective Shares (or 17.35% on a fully diluted basis) after giving effect to the closing of the private placement transaction. The Company does not have the ability to exercise significant influence over operating and financial policies of Perspective because the Company’s board observer has no voting rights and there is otherwise no participation in policy-making processes, no interchange of managerial personnel, and no sharing of technology between the Company and Perspective. Also effective January 8, 2024, the Company obtained the following options and rights from Perspective for an aggregate upfront payment of $28.0 million in cash: •An exclusive option from Perspective to negotiate for an exclusive license under the rights of Perspective and its affiliates to Perspective’s Pb212-VMT-⍺-NET, a clinical stage alpha therapy developed for the treatment of neuroendocrine tumors, to develop, manufacture, commercialize and otherwise exploit the VMT-α-NET Product. •A right to co-fund the investigational new drug application (“IND”) enabling studies for early-stage therapeutic candidates targeting prostate-specific membrane antigen and gastrin releasing peptide receptor and, prior to IND filing, a right to negotiate for an exclusive license to such candidates. •A right of first offer and last look protections for any third party merger and acquisition transactions involving Perspective for a twelve-month period. Costs of IPR&D projects acquired as part of an asset acquisition that have no alternative future use are expensed when incurred, and therefore, a charge of $28.0 million was recognized in research and development expenses during the three months ended March 31, 2024. Also effective January 8, 2024, the Company entered into an agreement with Perspective to transfer the Somerset Facility and the associated assets at the Somerset Facility for $8.0 million. The transfer of the sublease and completion of the asset sale occurred on March 1, 2024 at which time the Company had no further continuing legal obligations related to the lease. See Note 7, "Property, Plant and Equipment, Net" for additional details. On June 14, 2024 Perspective effected a 1-for-10 reverse stock split, after which the Company held 11,677,339 shares of Perspective’s common stock. On June 15, 2024, the Company entered into an agreement with Radiopharm Theranostics Limited (“Radiopharm”) to acquire all of Radiopharm’s rights to two licensed preclinical assets for an upfront payment of $2.0 million. The Company acquired global exclusive rights to both an LRRC15-targeted monoclonal antibody referred to as DUNP19 and to a Trophoblast cell surface antigen 2 (“TROP2”)-targeted nanobody. LRRC15 is a potential first-in-class, highly specific monoclonal antibody radio-conjugate with both Orphan Drug and Rare Pediatric Disease designations from the FDA for the treatment of osteosarcoma. The agent is designed to target the surrounding tumor micro-environment cells expressing the protein potentially treating a broad range of cancers. The TROP2-targeted nanobody radio-conjugate is designed to target TROP2, an intracellular calcium signal transducer that is overexpressed in various types of adenocarcinomas with minimal expression in normal tissues and is associated with tumor aggressiveness, poor prognosis and drug resistance. In connection with this acquisition, the Company is assuming the underlying license agreements related to the two preclinical assets, together with their respective milestone and royalty payment obligations. The Company could pay up to an additional $20.0 million in milestone payments upon achievement of specified regulatory milestones. The Company could also pay up to an additional $6.5 million in sales milestone payments upon the achievement of specified annual commercial sales thresholds in the event the Company pursues commercialization as well as royalty payments for commercial sales. Costs of IPR&D projects acquired as part of an asset acquisition that have no alternative future use are expensed when incurred, and therefore, a charge of $2.0 million was recognized in research and development expenses during the three months ended June 30, 2024. The Company also entered an agreement with Radiopharm to make an initial equity investment of approximately $5.0 million to purchase 149,625,180 Radiopharm shares at the fair market offering price of $0.03 per share. Included within the agreement is an option to invest an additional $5.0 million within six months on the same terms which would result in the Company purchasing approximately an additional 149,925,040 Radiopharm shares. The aforementioned agreement is predicated on the approval of Radiopharm’s shareholder vote that is expected to occur in the third quarter of 2024. On June 18, 2024, the Company acquired Meilleur, including its investigational asset NAV-4694, an F 18-labeled PET imaging agent that targets beta amyloids in Alzheimer’s disease. The Company determined that upon review of the Meilleur acquisition, the transaction did not meet the definition of a business combination and is therefore treated as an asset acquisition. The Company made an upfront payment of approximately $32.9 million to the Meilleur Stockholders on June 18, 2024 and expects to pay an additional $10.0 million upon successful completion of a technology transfer. The Company could pay up to an additional $43.0 million in milestone payments upon achievement of specified U.S. regulatory milestones related to NAV-4694. The Meilleur Stockholders are also eligible to receive up to $830.0 million in sales milestone payments upon the achievement of specified annual commercial sales thresholds of NAV-4694 in the event the Company pursues commercialization as well as up to $5.0 million in research milestones upon achievement of specified clinical studies at academic institutions thresholds. Research revenue is derived from existing partnerships with pharmaceutical companies and academic institutions that use NAV-4694 in clinical trials. Additionally, the Company could pay the Meilleur Stockholders up to double-digit royalty payments for research revenue and, in the event the Company pursues commercialization, commercial sales. Certain members of the Meilleur Stockholders will also provide transition and clinical development services for a prescribed time following the closing of the transaction for a fair market value fee. On June 27, 2024, the Company announced it had acquired the global rights to Life Molecular Imaging’s RM2, which targets the gastrin-releasing peptide receptor (GRPR), including the associated novel, clinical-stage radiotherapeutic and radiodiagnostic pair, referred to as 177Lu-DOTA-RM2 and 68Ga-DOTA-RM2, for an upfront payment of $35.0 million plus a $1.0 million payment made prior to the close date. The Company could pay up to an additional 132.5 million Euros in regulatory milestone payments upon achievement of clinical trial thresholds and approvals in different regions. The Company could pay up to 280.0 million Euros in sales milestone payments upon the achievement of specified annual commercial sales threshold of RM2 in the event the Company pursues commercialization. Additionally, the Company could pay up to 25.0 million Euros for collaboration payments inclusive of all costs including employee costs, payments due to Universities, out-of-pocket expenses and services costs, as well as up to 5.0 million Euros for any additional development services performed by Life Molecular Imaging during the 24-month period immediately following the close date. Costs of IPR&D projects acquired as part of an asset acquisition that have no alternative future use are expensed when incurred, and therefore, a charge of $36.0 million was recognized in research and development expenses during the three months ended June 30, 2024. Global rights are exclusive for therapeutic fields in all countries and diagnostic fields in the Americas and co-exclusive with Life Molecular Imaging for diagnostic fields outside of the Americas. 68Ga-DOTA-RM2 targets cancers overexpressing GRPR, such as prostate, breast, lung, pancreatic, colorectal, gastric and ovarian cancers and has been extensively studied in various tumor types.

Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Pay vs Performance Disclosure
Net income (loss)	$ 62,073	$ 131,066	$ 94,131	$ (2,807)	$ 193,139	$ 91,324

Insider Trading Arrangements	3 Months Ended	6 Months Ended
Insider Trading Arrangements	Jun. 30, 2024 shares	Jun. 30, 2024 shares
Trading Arrangements, by Individual
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Gérard Ber [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On May 7, 2024, Gérard Ber, a member of our Board, entered into a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act (a “10b5-1 Plan”), providing for the potential sale of up to 15,500 shares of our common stock between September 11, 2024 and April 11, 2025.
Name	Gérard Ber
Title	member of our Board
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	May 7, 2024
Expiration Date	April 11, 2025
Arrangement Duration	212 days
Aggregate Available	15,500	15,500
James Thrall [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On May 21, 2024, James Thrall, a member of our Board, entered into a 10b5-1 Plan providing for the potential sale of up to 2,000 shares of our common stock between August 21, 2024 and January 15, 2025.
Name	James Thrall
Title	member of our Board
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	May 21, 2024
Expiration Date	January 15, 2025
Arrangement Duration	147 days
Aggregate Available	2,000	2,000

Summary of Significant Accounting Policies (Policies)	6 Months Ended
Summary of Significant Accounting Policies (Policies)	Jun. 30, 2024
Accounting Policies [Abstract]
Basis of Presentation	The accompanying unaudited condensed consolidated financial statements include the accounts of Lantheus and have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, these condensed consolidated financial statements do not include all of the information and notes required by generally accepted accounting principles in the United States (“U.S. GAAP”) for complete financial statements. In the opinion of management, all adjustments (consisting of normal and recurring adjustments) considered necessary for a fair statement have been included. The results of operations for the three and six months ended June 30, 2024 are not necessarily indicative of the results that may be expected for the year ended December 31, 2024 or any future period. The condensed consolidated balance sheet at December 31, 2023 has been derived from the audited consolidated financial statements at that date but does not include all the information and notes required by U.S. GAAP for complete financial statements. These condensed consolidated financial statements and accompanying notes should be read in conjunction with the consolidated financial statements and notes thereto included in Item 8 of the Company’s most recent Annual Report on Form 10-K for the year ended December 31, 2023 filed with the Securities Exchange Commission (“SEC”) on February 22, 2024.
Investments	Investments Equity investments with readily determinable fair values for which the Company does not have significant influence over the investee are measured at fair value on a recurring basis. Equity investments without readily determinable fair values for which the Company does not have significant influence over the investee are measured at cost with adjustments for observable changes in price or impairments (referred to as the measurement alternative). For equity investments for which the Company does not have significant influence over the investee, changes in the value of unsold equity investments are recorded in investment in equity securities – unrealized gain (loss). Equity investments for which the Company has significant influence over the investee are measured using the equity method unless the Company elects to apply the fair value option to account for the investment.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In December 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which requires all public entities, including public entities with a single reportable segment, to provide in interim and annual periods one or more measures of segment profit or loss used by the chief operating decision maker to allocate resources and assess performance. Additionally, the standard requires disclosures of significant segment expenses and other segment items as well as incremental qualitative disclosures. The guidance in this update is effective for fiscal years beginning after December 15, 2023, and interim periods after December 15, 2024. The Company is currently in the process of evaluating the effects of this pronouncement on our related disclosures. In December 2023, the FASB also issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires enhanced income tax disclosures, including specific categories and disaggregation of information in the effective tax rate reconciliation, disaggregated information related to income taxes paid, income or loss from continuing operations before income tax expense or benefit, and income tax expense or benefit from continuing operations. The requirements of the ASU are effective for annual periods beginning after December 15, 2024, with early adoption permitted. The Company is currently in the process of evaluating the impact of this pronouncement on our related disclosures.

Revenue from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2024

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following table summarizes revenue by revenue source as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
Major Products/Service Lines (in thousands)	2024		2023		2024		2023
Product revenue, net(1)	$	392,756	$	314,084	$	762,069	$	606,340
License and royalty revenues	1,335		7,616		1,997		16,144
Total revenues	$	394,091	$	321,700	$	764,066	$	622,484

________________________________

Revenue by product category on a net basis is as follows:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2024		2023		2024		2023
PYLARIFY	$	273,255	$	210,522	$	532,125	$	405,992
Other radiopharmaceutical oncology	—		818		384		1,535
Total radiopharmaceutical oncology	273,255		211,340		532,509		407,527
DEFINITY	78,100		70,529		154,664		139,353
TechneLite	28,186		21,594		49,900		42,580
Other precision diagnostics	5,825		5,454		11,757		11,261
Total precision diagnostics	112,111		97,577		216,321		193,194
Strategic partnerships and other revenue	8,725		12,783		15,236		21,763
Total revenues	$	394,091	$	321,700	$	764,066	$	622,484

Fair Value of Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2024

Fair Value Disclosures [Abstract]

Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis

The tables below present information about the Company’s assets and liabilities measured at fair value on a recurring basis:


	June 30, 2024
(in thousands)	Total Fair Value		Level 1		Level 2		Level 3
Assets:
Money market funds	$	575,974	$	575,974	$	—	$	—
Investment securities	116,423		116,423		—		—

Total assets	$	692,397	$	692,397	$	—	$	—
Liabilities:
Contingent consideration liabilities	$	2,800	$	—	$	—	$	2,800
Total liabilities	$	2,800	$	—	$	—	$	2,800


	December 31, 2023
(in thousands)	Total Fair Value		Level 1		Level 2		Level 3
Assets:
Money market funds	$	574,131	$	574,131	$	—	$	—


Total assets	$	574,131	$	574,131	$	—	$	—
Liabilities:
Contingent consideration liabilities	$	2,700	$	—	$	—	$	2,700
Total liabilities	$	2,700	$	—	$	—	$	2,700

Schedule of Quantitative Information and Assumptions Pertaining to the Fair Value Measurement of the Level 3 Inputs

The following tables summarize quantitative information and assumptions pertaining to the fair value measurement of liabilities using Level 3 inputs at June 30, 2024.


	Fair Value at						Assumptions
(in thousands)	June 30, 2024		December 31, 2023		Valuation Technique	Unobservable Input	June 30, 2024		December 31, 2023
Contingent consideration liability:



1095 commercialization milestone	1,800		1,800		Probability adjusted discounted cash flow model
						Period of expected milestone achievement	2026		2026
						Probability of success	40	%	40	%
						Discount rate	4.5	%	4.1	%



Net sales targets - AZEDRA and 1095	1,000		900		Monte Carlo simulation
						Probability of success and sales targets	0% - 40%		0% - 40%
						Discount rate	15%		15%
Total	$	2,800	$	2,700

Schedule of Financial Instruments with Significant Level 3 Inputs

For those financial instruments with significant Level 3 inputs, the following table summarizes the activities for the periods indicated:


	Financial Liabilities
(in thousands)	Six Months Ended June 30,
		2024		2023
Fair value, beginning of period		$	2,700	$	111,600

Changes in fair value included in net income		100		(8,975)
Cash payments		—		(99,625)
Fair value, end of period		$	2,800	$	3,000

Income Taxes (Tables)

6 Months Ended

Jun. 30, 2024

Income Tax Disclosure [Abstract]

Schedule of Income Tax Expense

The Company’s income tax expense and effective tax rate are presented below:


	Three Months Ended June 30,						Six Months Ended June 30,
(in thousands)	2024			2023			2024			2023
Income tax expense	$	22,301		$	29,557		$	62,503		$	21,260
Effective tax rate	26.4		%	23.9		%	24.4		%	18.9		%

Inventory (Tables)

6 Months Ended

Jun. 30, 2024

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventory consisted of the following:


(in thousands)	June 30, 2024		December 31, 2023
Raw materials	$	29,571	$	31,259
Work in process	20,108		13,807
Finished goods	20,837		18,963
Total inventory	$	70,516	$	64,029

Property, Plant and Equipment, Net (Tables)

6 Months Ended

Jun. 30, 2024

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant, and Equipment, Net

Property, plant and equipment, net, consisted of the following:


(in thousands)	June 30, 2024		December 31, 2023
Land	$	9,480	$	9,480
Buildings	78,040		73,441
Machinery, equipment and fixtures	103,772		102,576
Computer software	52,601		27,259
Construction in progress	26,648		40,964
	270,541		253,720
Less: accumulated depreciation and amortization	(112,383)		(107,023)
Total property, plant and equipment, net	$	158,158	$	146,697

Accrued Expenses, Other Liabilities and Other Long-Term Liabilities (Tables)

6 Months Ended

Jun. 30, 2024

Payables and Accruals [Abstract]

Schedule of Accrued Expenses, Other Liabilities and Other Long-Term Liabilities

Accrued expenses, other liabilities and other long-term liabilities are comprised of the following:


(in thousands)	June 30, 2024		December 31, 2023
Compensation and benefits	$	30,629	$	36,331
Freight, distribution and operations	85,778		67,529
Accrued rebates, discounts and chargebacks	17,247		16,070
Accrued professional fees	18,819		10,244
Accrued research and development expenses	43,371		3,258
Other	16,799		11,906
Total accrued expenses and other liabilities	$	212,643	$	145,338

Operating lease liabilities (Note 15)	$	54,125	$	54,453
Long-term contingent liabilities (Note 4)	2,800		2,700
Other long-term liabilities	6,618		6,168
Total other long-term liabilities	$	63,543	$	63,321

Asset Retirement Obligations (Tables)

6 Months Ended

Jun. 30, 2024

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Changes in Asset Retirement Obligations

The following table provides a summary of the changes in the Company’s carrying value of asset retirement obligations:


(in thousands)	Amount
Balance at January 1, 2024	$	22,916
Accretion expense	214

Balance at June 30, 2024	$	23,130

Intangibles, Net (Tables)

6 Months Ended

Jun. 30, 2024

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

Intangibles, net, consisted of the following:


	June 30, 2024
(in thousands)	Useful Lives (in years)	Amortization Method	Cost		Accumulated Amortization		Net
Trademarks	15 - 25	Straight-Line	$	13,540	$	(12,289)	$	1,251
Customer relationships	15 - 25	Accelerated	157,901		(127,143)		30,758

Currently marketed products	9 - 15	Straight-Line	132,800		(45,655)		87,145
Licenses	11 - 16	Straight-Line	22,233		(10,587)		11,646
Developed technology	7 - 9	Straight-Line	42,706		(1,267)		41,439

Total			$	369,180	$	(196,941)	$	172,239


	December 31, 2023
(in thousands)	Useful Lives (in years)	Amortization Method	Cost		Accumulated Amortization		Net
Trademarks	15 - 25	Straight-Line	$	13,540	$	(12,216)	$	1,324
Customer relationships	15 - 25	Accelerated	157,995		(117,574)		40,421
Currently marketed products	9 - 15	Straight-Line	132,800		(38,277)		94,523
Licenses	11 - 16	Straight-Line	22,233		(7,972)		14,261
Developed technology	9	Straight-Line	2,400		(944)		1,456

Total			$	328,968	$	(176,983)	$	151,985

Schedule of Indefinite-Lived Intangible Assets

Intangibles, net, consisted of the following:


	June 30, 2024
(in thousands)	Useful Lives (in years)	Amortization Method	Cost		Accumulated Amortization		Net
Trademarks	15 - 25	Straight-Line	$	13,540	$	(12,289)	$	1,251
Customer relationships	15 - 25	Accelerated	157,901		(127,143)		30,758

Currently marketed products	9 - 15	Straight-Line	132,800		(45,655)		87,145
Licenses	11 - 16	Straight-Line	22,233		(10,587)		11,646
Developed technology	7 - 9	Straight-Line	42,706		(1,267)		41,439

Total			$	369,180	$	(196,941)	$	172,239


	December 31, 2023
(in thousands)	Useful Lives (in years)	Amortization Method	Cost		Accumulated Amortization		Net
Trademarks	15 - 25	Straight-Line	$	13,540	$	(12,216)	$	1,324
Customer relationships	15 - 25	Accelerated	157,995		(117,574)		40,421
Currently marketed products	9 - 15	Straight-Line	132,800		(38,277)		94,523
Licenses	11 - 16	Straight-Line	22,233		(7,972)		14,261
Developed technology	9	Straight-Line	2,400		(944)		1,456

Total			$	328,968	$	(176,983)	$	151,985

Schedule of Expected Future Amortization Expense Related to Intangible Assets

The below table summarizes the estimated aggregate amortization expense expected to be recognized on the above intangible assets:


(in thousands)	Amount
Remainder of 2024	$	22,741
2025	30,167
2026	30,965
2027	25,438
2028	21,953
2029 and thereafter	40,975
Total	$	172,239

Long-Term Debt, Net, and Other Borrowings (Tables)

6 Months Ended

Jun. 30, 2024

Debt Disclosure [Abstract]

Schedule of Maturities of Principal Obligations

As of June 30, 2024, the Company’s maturities of principal obligations under its long-term debt and other borrowings are as follows:


(in thousands)	Amount
Remainder of 2024	$	—
2025	—
2026	—
2027	575,000


Total principal outstanding	575,000

Unamortized debt issuance costs	(12,174)

Finance lease liabilities	1,230

Total	564,056
Less: current portion	(868)
Total long-term debt, net and other borrowings	$	563,188

Accumulated Other Comprehensive (Loss) Income (Tables)

6 Months Ended

Jun. 30, 2024

Equity [Abstract]

Schedule of Accumulated Other Comprehensive (Loss) Income

The components of accumulated other comprehensive (loss) income, net of tax of zero for the six months ended June 30, 2024 and 2023 consisted of the following:


(in thousands)	Foreign currency translation		Accumulated other comprehensive (loss)
Balance at January 1, 2024	$	(1,037)	$	(1,037)
Other comprehensive loss before reclassifications	(173)		(173)

Balance at June 30, 2024	$	(1,210)	$	(1,210)

Balance at January 1, 2023	$	(1,259)	$	(1,259)
Other comprehensive income before reclassifications	307		307

Balance at June 30, 2023	$	(952)	$	(952)

Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2024

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-Based Compensation Expense Recognized

The following table presents stock-based compensation expense recognized in the Company’s accompanying condensed consolidated statements of operations:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2024		2023		2024		2023
Cost of goods sold	$	2,870	$	2,231	$	5,502	$	3,873
Sales and marketing	3,076		1,959		5,868		4,221
General and administrative	9,768		6,670		17,531		11,072
Research and development	2,765		1,832		4,962		3,193
Total stock-based compensation expense	$	18,479	$	12,692	$	33,863	$	22,359

Leases (Tables)

6 Months Ended

Jun. 30, 2024

Leases [Abstract]

Schedule of Operating and Finance Lease Assets and Liabilities

Operating and finance lease assets and liabilities are as follows:


(in thousands)	Classification	June 30, 2024		December 31, 2023
Assets
Operating	Other long-term assets	$	42,541	$	45,325
Finance	Property, plant and equipment, net	1,427		1,438
Total leased assets		$	43,968	$	46,763
Liabilities
Current
Operating	Accrued expenses and other liabilities	$	2,094	$	1,904
Finance	Current portion of long-term debt and other borrowings	868		823
Noncurrent
Operating	Other long-term liabilities	54,125		54,453
Finance	Long-term debt, net and other borrowings	362		625
Total leased liabilities		$	57,449	$	57,805

Schedule of components of lease expense

Other information related to leases were as follows:


	June 30, 2024	December 31, 2023
Weighted-average remaining lease term (Years):
Operating leases	13.2	13.5
Finance leases	2.4	2.3
Weighted-average discount rate:
Operating leases	7.4%	7.3%
Finance leases	7.4%	6.2%

Net Income Per Common Share (Tables)

6 Months Ended

Jun. 30, 2024

Earnings Per Share [Abstract]

Schedule of Net Income (Loss) Per Common Share

A summary of net income per common share is presented below:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands, except per share amounts)	2024		2023		2024		2023
Net income	$	62,073	$	94,131	$	193,139	$	91,324

Basic weighted-average common shares outstanding	69,356		68,371		69,056		68,062
Effect of dilutive stock options	256		399		246		391
Effect of dilutive restricted stock	989		1,447		1,062		1,504
Effect of convertible notes	—		797		—		—
Diluted weighted-average common shares outstanding	70,601		71,014		70,364		69,957

Basic income per common share	$	0.89	$	1.38	$	2.80	$	1.34
Diluted income per common share	$	0.88	$	1.33	$	2.74	$	1.31

Antidilutive securities excluded from diluted net income per common share	845		349		1,219		389

Other Income (Tables)

6 Months Ended

Jun. 30, 2024

Other Income and Expenses [Abstract]

Schedule of Other Income

Other income consisted of the following:


	Three Months Ended June 30,				Six Months Ended June 30,
(in thousands)	2024		2023		2024		2023
Foreign currency (gain) loss	$	455	$	(224)	$	238	$	22
Tax indemnification income, net	—		(232)		—		(328)
Interest income	(8,924)		(4,027)		(17,472)		(7,550)

Other	(575)		1		(598)		143
Total other income, net	$	(9,044)	$	(4,482)	$	(17,832)	$	(7,713)

Basis of Presentation (Details) - USD ($) $ in Thousands	Feb. 20, 2020	Jun. 30, 2024	Dec. 31, 2023
Business Acquisition [Line Items]
Business combination, consideration transferred, equity interests issued (in shares)	26,844,877
Business combination common stock under contingent value right (in shares)	86,630,633
Contingent consideration liabilities		$ 2,800	$ 2,700
Progenics
Business Acquisition [Line Items]
Aggregate cash payments percentage	40.00%
Percentage of total contingent consideration under CVRs	19.90%
Business combination contingent value right of total consideration	$ 99,600
Progenics \| Cash Payments 2022
Business Acquisition [Line Items]
Contingent consideration liabilities	100,000
Progenics \| Cash Payments 2023
Business Acquisition [Line Items]
Contingent consideration liabilities	$ 150,000

Revenue from Contracts with Customers - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Disaggregation of Revenue [Line Items]
Revenues	$ 394,091	$ 321,700	$ 764,066	$ 622,484
Product revenue, net
Disaggregation of Revenue [Line Items]
Revenues	392,756	314,084	762,069	606,340
License and royalty revenues
Disaggregation of Revenue [Line Items]
Revenues	1,335	7,616	1,997	16,144
Total radiopharmaceutical oncology
Disaggregation of Revenue [Line Items]
Revenues	273,255	211,340	532,509	407,527
PYLARIFY
Disaggregation of Revenue [Line Items]
Revenues	273,255	210,522	532,125	405,992
Other radiopharmaceutical oncology
Disaggregation of Revenue [Line Items]
Revenues	0	818	384	1,535
Total precision diagnostics
Disaggregation of Revenue [Line Items]
Revenues	112,111	97,577	216,321	193,194
DEFINITY
Disaggregation of Revenue [Line Items]
Revenues	78,100	70,529	154,664	139,353
TechneLite
Disaggregation of Revenue [Line Items]
Revenues	28,186	21,594	49,900	42,580
Other precision diagnostics
Disaggregation of Revenue [Line Items]
Revenues	5,825	5,454	11,757	11,261
Strategic partnerships and other revenue
Disaggregation of Revenue [Line Items]
Revenues	$ 8,725	$ 12,783	$ 15,236	$ 21,763

Revenue from Contracts with Customers - Narrative (Details)	6 Months Ended
	Jun. 30, 2024 product_category
Revenue from Contract with Customer [Abstract]
Number of product categories	3

Fair Value of Financial Instruments - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Assets:
Investment securities	$ 116,423
Total assets	692,397	$ 574,131
Liabilities:
Contingent consideration liabilities	2,800	2,700
Total liabilities	2,800	2,700
Level 1
Assets:
Investment securities	116,423
Total assets	692,397	574,131
Liabilities:
Contingent consideration liabilities	0	0
Total liabilities	0	0
Level 2
Assets:
Investment securities	0
Total assets	0	0
Liabilities:
Contingent consideration liabilities	0	0
Total liabilities	0	0
Level 3
Assets:
Investment securities	0
Total assets	0	0
Liabilities:
Contingent consideration liabilities	2,800	2,700
Total liabilities	2,800	2,700
Money market funds
Assets:
Money market funds	575,974	574,131
Money market funds \| Level 1
Assets:
Money market funds	575,974	574,131
Money market funds \| Level 2
Assets:
Money market funds	0	0
Money market funds \| Level 3
Assets:
Money market funds	$ 0	$ 0

Fair Value of Financial Instruments - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2024 USD ($)
Fair Value, Option, Quantitative Disclosures [Line Items]
Change in fair value of the contingent financial asset and contingent financial liabilities	$ 0.1
Fair Value, Net Derivative Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	General and administrative
2.625% Convertible Senior Notes due 2027 \| Convertible Debt
Fair Value, Option, Quantitative Disclosures [Line Items]
Long-term debt	$ 575.0
Debt instrument, fair value	715.1
Progenics
Fair Value, Option, Quantitative Disclosures [Line Items]
Potential payments, high	85.0
Progenics \| Net Sales Targets for Azedra
Fair Value, Option, Quantitative Disclosures [Line Items]
Potential payments, high	70.0
Progenics \| 1095 commercialization milestone
Fair Value, Option, Quantitative Disclosures [Line Items]
Potential payments, high	5.0
Progenics \| 1404 Commercialization Milestone
Fair Value, Option, Quantitative Disclosures [Line Items]
Potential payments, high	$ 10.0

Fair Value of Financial Instruments - Schedule of Quantitative Information and Assumptions Pertaining to the Fair Value Measurement of the Level 3 Inputs (Details) $ in Thousands	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value, Option, Quantitative Disclosures [Line Items]
Contingent consideration liabilities	$ 2,800	$ 2,700
Level 3
Fair Value, Option, Quantitative Disclosures [Line Items]
Contingent consideration liabilities	2,800	2,700
Level 3 \| 1095 commercialization milestone
Fair Value, Option, Quantitative Disclosures [Line Items]
Contingent consideration liabilities	1,800	1,800
Level 3 \| Net sales targets - AZEDRA and 1095
Fair Value, Option, Quantitative Disclosures [Line Items]
Contingent consideration liabilities	$ 1,000	$ 900
Level 3 \| Probability adjusted discounted cash flow model \| Probability of success \| 1095 commercialization milestone
Fair Value, Option, Quantitative Disclosures [Line Items]
Liability measurement input, percentage	0.40	0.40
Level 3 \| Probability adjusted discounted cash flow model \| Discount rate \| 1095 commercialization milestone
Fair Value, Option, Quantitative Disclosures [Line Items]
Liability measurement input, percentage	0.045	0.041
Level 3 \| Monte Carlo simulation \| Probability of success \| Net sales targets - AZEDRA and 1095 \| Minimum
Fair Value, Option, Quantitative Disclosures [Line Items]
Liability measurement input, percentage	0	0
Level 3 \| Monte Carlo simulation \| Probability of success \| Net sales targets - AZEDRA and 1095 \| Maximum
Fair Value, Option, Quantitative Disclosures [Line Items]
Liability measurement input, percentage	0.40	0.40
Level 3 \| Monte Carlo simulation \| Discount rate \| Net sales targets - AZEDRA and 1095
Fair Value, Option, Quantitative Disclosures [Line Items]
Liability measurement input, percentage	0.15	0.15

Fair Value of Financial Instruments - Schedule of Financial Instruments with Significant Level 3 Inputs (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Financial Liabilities
Fair value, beginning of period	$ 2,700	$ 111,600
Changes in fair value included in net income	100	(8,975)
Cash payments	0	(99,625)
Fair value, end of period	$ 2,800	$ 3,000

Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Income Taxes (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Income Tax Disclosure [Abstract]
Income tax expense	$ 22,301	$ 29,557	$ 62,503	$ 21,260
Effective tax rate	26.40%	23.90%	24.40%	18.90%

Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Inventory Disclosure [Abstract]
Raw materials	$ 29,571	$ 31,259
Work in process	20,108	13,807
Finished goods	20,837	18,963
Total inventory	$ 70,516	$ 64,029

Property, Plant and Equipment, Net - Schedule of Property, Plant, and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	$ 270,541	$ 253,720
Less: accumulated depreciation and amortization	(112,383)	(107,023)
Total property, plant and equipment, net	158,158	146,697
Land
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	9,480	9,480
Buildings
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	78,040	73,441
Machinery, equipment and fixtures
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	103,772	102,576
Computer software
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	52,601	27,259
Construction in progress
Property, Plant & Equipment [Line Items]
Property, plant & equipment, gross	$ 26,648	$ 40,964

Property, Plant and Equipment, Net - Narrative (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
	Jan. 08, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2023
Property, Plant & Equipment [Line Items]
Depreciation and amortization expense		$ 4,600	$ 3,300	$ 10,000	$ 6,700
Noncash impairment					6,000
Gain on sale of assets		$ 0	$ 0	6,254	$ 0
Disposed of by Sale
Property, Plant & Equipment [Line Items]
Disposal group consideration						$ 10,000
Agreement with Perspective Therapeutics, Inc
Property, Plant & Equipment [Line Items]
Disposal group consideration	$ 8,000
Right of use assets	400
Right of use liability	400
Property, plant and equipment	800
Commission expense	$ 1,000
Gain on sale of assets				$ 6,300

Accrued Expenses, Other Liabilities and Other Long-Term Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Payables and Accruals [Abstract]
Compensation and benefits	$ 30,629	$ 36,331
Freight, distribution and operations	85,778	67,529
Accrued rebates, discounts and chargebacks	17,247	16,070
Accrued professional fees	18,819	10,244
Accrued research and development expenses	43,371	3,258
Other	16,799	11,906
Total accrued expenses and other liabilities	212,643	145,338
Operating lease liabilities (Note 15)	54,125	54,453
Long-term contingent liabilities (Note 4)	2,800	2,700
Other long-term liabilities	6,618	6,168
Total other long-term liabilities	$ 63,543	$ 63,321

Asset Retirement Obligations - Narrative (Details) $ in Millions	Jun. 30, 2024 USD ($)
Asset Retirement Obligation Disclosure [Abstract]
Obligation expected to be incurred	$ 25.1
Financial assurance in form of surety bond	$ 30.3

Asset Retirement Obligations - Schedule of Changes in Asset Retirement Obligations (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2024 USD ($)
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at the beginning of the period	$ 22,916
Accretion expense	214
Balance at the ending of the period	$ 23,130

Intangibles, Net - Schedule of Intangibles Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Aug. 02, 2023
Finite-Lived Intangible Assets [Line Items]
Total, cost	$ 369,180	$ 328,968
Accumulated Amortization	(196,941)	(176,983)
Total	172,239
Total, net	172,239	151,985
Trademarks
Finite-Lived Intangible Assets [Line Items]
Cost	13,540	13,540
Accumulated Amortization	(12,289)	(12,216)
Total	$ 1,251	$ 1,324
Trademarks \| Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	15 years	15 years
Trademarks \| Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	25 years	25 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Cost	$ 157,901	$ 157,995
Accumulated Amortization	(127,143)	(117,574)
Total	$ 30,758	$ 40,421
Customer relationships \| Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	15 years	15 years
Customer relationships \| Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	25 years	25 years
Currently marketed products
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	9 years
Cost	$ 132,800	$ 132,800
Accumulated Amortization	(45,655)	(38,277)
Total	$ 87,145	$ 94,523
Currently marketed products \| Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)		9 years
Currently marketed products \| Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	15 years	15 years
Licenses
Finite-Lived Intangible Assets [Line Items]
Cost	$ 22,233	$ 22,233	$ 63,600
Accumulated Amortization	(10,587)	(7,972)	$ (17,500)
Total	$ 11,646	$ 14,261
Licenses \| Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	11 years	11 years
Licenses \| Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	16 years	16 years
Developed technology
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)		9 years
Cost	$ 42,706	$ 2,400
Accumulated Amortization	(1,267)	(944)
Total	$ 41,439	$ 1,456
Developed technology \| Minimum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	7 years
Developed technology \| Maximum
Finite-Lived Intangible Assets [Line Items]
Useful Lives (in years)	9 years

Intangibles, Net - Narrative (Details) - USD ($) $ in Thousands			1 Months Ended			3 Months Ended			6 Months Ended
	Jun. 18, 2024	Aug. 02, 2023	Jun. 30, 2024	May 31, 2023	Feb. 28, 2023	Jun. 30, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Amortization expense						$ 10,200	$ 12,400		$ 20,100	$ 23,500
Proceeds from selling rights to the royalties		$ 98,000
Gain on sale of RELISTOR licensed intangible asset associated with net sales royalties		5,000
Accumulated amortization			$ 196,941			196,941			196,941		$ 176,983
Gain on sale of RELISTOR licensed intangible asset associated with net sales royalties									6,254	$ 0
Cerveau Technologies, Inc
Finite-Lived Intangible Assets [Line Items]
Payment for acquisitions				$ 10,000	$ 35,300
Asset acquisition, consideration transferred				$ 10,000
Meilleur Technologies, Inc
Finite-Lived Intangible Assets [Line Items]
Payment for acquisitions	$ 32,900
Asset acquisition, consideration transferred			32,900
Research and development
Finite-Lived Intangible Assets [Line Items]
Non-cash impairment charges								$ 15,600
Cost of goods sold
Finite-Lived Intangible Assets [Line Items]
Non-cash impairment charges								$ 116,400
Licenses
Finite-Lived Intangible Assets [Line Items]
Cost		63,600	22,233			22,233			22,233		22,233
Accumulated amortization		$ 17,500	10,587			10,587			10,587		7,972
Gain on sale of RELISTOR licensed intangible asset associated with net sales royalties									51,800
Developed technology
Finite-Lived Intangible Assets [Line Items]
Cost			42,706			42,706			42,706		2,400
Accumulated amortization			1,267			$ 1,267			$ 1,267		$ 944
Developed technology \| Meilleur Technologies, Inc
Finite-Lived Intangible Assets [Line Items]
Finite lived intangible assets acquired			$ 40,300

Intangibles, Net - Schedule of Expected Future Amortization Expense Related to Intangible Assets (Details) $ in Thousands	Jun. 30, 2024 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
Remainder of 2024	$ 22,741
2025	30,167
2026	30,965
2027	25,438
2028	21,953
2029 and thereafter	40,975
Total	$ 172,239

Long-Term Debt, Net, and Other Borrowings - Schedule of Maturities of Principal Obligations (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Disclosure [Abstract]
Remainder of 2024	$ 0
2025	0
2026	0
2027	575,000
Total principal outstanding	575,000
Unamortized debt issuance costs	(12,174)
Finance lease liabilities	1,230
Total	564,056
Less: current portion	(868)
Total long-term debt, net and other borrowings	$ 563,188	$ 561,670

Long-Term Debt, Net, and Other Borrowings - Narrative (Details)			1 Months Ended	3 Months Ended	6 Months Ended
	Dec. 08, 2022 USD ($) $ / shares	Dec. 05, 2022	Dec. 31, 2022 USD ($)	Jun. 30, 2024 USD ($) $ / shares	Jun. 30, 2024 USD ($) financial_covenant $ / shares
2022 Facility Covenants
Debt Instrument [Line Items]
Number of covenants \| financial_covenant					2
Minimum interest coverage ratio				3.00	3.00
Debt instrument, covenant leverage ratio					3.50
Convertible Debt
Debt Instrument [Line Items]
Extinguishment of debt	$ 75,000,000
Convertible Debt \| 2.625% Convertible Senior Notes due 2027
Debt Instrument [Line Items]
Debt instrument face amount	$ 575,000,000
Interest rate	2.625%
Proceeds from convertible debt	$ 557,800,000
Conversion ratio	0.0178539	0.0125291
Initial conversion price (in dollars per share) \| $ / shares	$ 79.81			$ 79.81	$ 79.81
Share price (in dollars per share) \| $ / shares	$ 56.01
Initial conversion premium	42.50%
Debt instrument, stock price percentage	130.00%
Purchase price as a percentage of principal amount	100.00%
Long-term debt				$ 575,000,000	$ 575,000,000
Debt instrument, unamortized discount				0	0
Debt instrument, fair value				715,100,000	715,100,000
Interest expense, debt				$ 3,800,000	$ 7,500,000
Maximum \| Convertible Debt \| 2.625% Convertible Senior Notes due 2027
Debt Instrument [Line Items]
Debt instrument, covenant percentage of additional interest				0.50%	0.50%
Minimum \| Convertible Debt \| 2.625% Convertible Senior Notes due 2027
Debt Instrument [Line Items]
Debt instrument, covenant percentage of additional interest				0.25%	0.25%
Revolving Credit Facility \| Line of Credit
Debt Instrument [Line Items]
Commitment fee amount			$ 350,000,000
Debt instrument term			5 years
Outstanding borrowings				$ 0	$ 0
Revolving Credit Facility \| Maximum \| Line of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 350,000,000
Line of credit facility, accordion feature, higher borrowing capacity option			$ 335,000,000
Revolving Credit Facility \| Maximum \| Line of Credit \| SOFR
Debt Instrument [Line Items]
Debt instrument, basis rate			2.50%
Revolving Credit Facility \| Maximum \| Line of Credit \| Base Rate
Debt Instrument [Line Items]
Debt instrument, basis rate			1.50%
Revolving Credit Facility \| Maximum \| Line of Credit \| Net Leverage Ratio
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage			0.35%
Revolving Credit Facility \| Minimum \| Line of Credit \| SOFR
Debt Instrument [Line Items]
Debt instrument, basis rate			1.50%
Revolving Credit Facility \| Minimum \| Line of Credit \| Base Rate
Debt Instrument [Line Items]
Debt instrument, basis rate			0.50%
Revolving Credit Facility \| Minimum \| Line of Credit \| Net Leverage Ratio
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage			0.15%
Letter of Credit \| Line of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 20,000,000
Bridge Loan \| Line of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 10,000,000

Accumulated Other Comprehensive (Loss) Income (Details) - USD ($)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive (loss) income, net of tax	$ 0		$ 0
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	815,892,000	$ 447,147,000
Other comprehensive (loss) income before reclassifications	(173,000)	307,000
Ending balance	1,026,685,000	552,645,000
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,037,000)	(1,259,000)
Other comprehensive (loss) income before reclassifications	(173,000)	307,000
Ending balance	(1,210,000)	(952,000)
Accumulated other comprehensive (loss)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(1,037,000)	(1,259,000)
Ending balance	$ (1,210,000)	$ (952,000)

Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Stock-Based Compensation (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 18,479	$ 12,692	$ 33,863	$ 22,359
Cost of goods sold
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	2,870	2,231	5,502	3,873
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	3,076	1,959	5,868	4,221
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	9,768	6,670	17,531	11,072
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock-based compensation expense	$ 2,765	$ 1,832	$ 4,962	$ 3,193

Leases - Schedule of Operating and Financing Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Assets
Operating	$ 42,541	$ 45,325
Finance	1,427	1,438
Total leased assets	$ 43,968	$ 46,763
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other long-term assets	Other long-term assets
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Property, plant and equipment, net	Property, plant and equipment, net
Current
Operating	$ 2,094	$ 1,904
Finance	$ 868	$ 823
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Accrued expenses and other liabilities	Accrued expenses and other liabilities
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current portion of long-term debt and other borrowings	Current portion of long-term debt and other borrowings
Noncurrent
Operating	$ 54,125	$ 54,453
Finance	362	625
Total leased liabilities	$ 57,449	$ 57,805
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other long-term liabilities	Other long-term liabilities
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt, net and other borrowings	Long-term debt, net and other borrowings

Leases - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Sep. 01, 2023	May 31, 2023	Feb. 28, 2022
Lessee, Lease, Description [Line Items]
Operating	$ 42,541	$ 45,325
Bedford, Massachusetts
Lessee, Lease, Description [Line Items]
Operating lease liability			$ 23,500	$ 6,000	$ 11,000
Term of contract	15 years 3 months 29 days
Operating			$ 23,500	$ 6,000
Renewal term			5 years

Leases - Schedule of Other Information Related to Leases (Details)	Jun. 30, 2024	Dec. 31, 2023
Weighted-average remaining lease term (Years):
Operating leases	13 years 2 months 12 days	13 years 6 months
Finance leases	2 years 4 months 24 days	2 years 3 months 18 days
Weighted-average discount rate:
Operating leases	7.40%	7.30%
Finance leases	7.40%	6.20%

Net Income Per Common Share - Schedule of Net Income Per Common Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income	$ 62,073	$ 94,131	$ 193,139	$ 91,324
Basic weighted-average common shares outstanding (in shares)	69,356	68,371	69,056	68,062
Effect of convertible notes (in shares)	0	797	0	0
Diluted weighted-average common shares outstanding (in shares)	70,601	71,014	70,364	69,957
Basic income per common share (in shares)	$ 0.89	$ 1.38	$ 2.80	$ 1.34
Diluted income per common share (in shares)	$ 0.88	$ 1.33	$ 2.74	$ 1.31
Antidilutive securities excluded from diluted net income per common share (in shares)	845	349	1,219	389
Employee Stock Option
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive share based compensation (in shares)	256	399	246	391
Restricted Stock
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Effect of dilutive share based compensation (in shares)	989	1,447	1,062	1,504

Net Income Per Common Share- Narrative (Details) - $ / shares	Jun. 30, 2024	Dec. 08, 2022
2.625% Convertible Senior Notes due 2027 \| Convertible Debt
Debt Instrument [Line Items]
Initial conversion price (in dollars per share)	$ 79.81	$ 79.81

Other Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Other Income (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Other Income and Expenses [Abstract]
Foreign currency (gain) loss	$ 455	$ (224)	$ 238	$ 22
Tax indemnification income, net	0	(232)	0	(328)
Interest income	(8,924)	(4,027)	(17,472)	(7,550)
Other	(575)	1	(598)	143
Total other income, net	$ (9,044)	$ (4,482)	$ (17,832)	$ (7,713)

Acquisition of Assets (Details) $ / shares in Units, $ in Thousands, € in Millions								1 Months Ended		3 Months Ended			6 Months Ended
	Jun. 27, 2024 USD ($)	Jun. 27, 2024 EUR (€)	Jun. 26, 2024 USD ($)	Jun. 18, 2024 USD ($)	Jun. 15, 2024 USD ($) licensed_asset $ / shares shares	Jun. 01, 2024 shares	Jan. 08, 2024 USD ($)	May 31, 2023 USD ($)	Feb. 28, 2023 USD ($)	Jun. 30, 2024 USD ($)	Mar. 31, 2024 USD ($)	Jun. 30, 2023 USD ($)	Dec. 31, 2024 USD ($) shares	Dec. 31, 2024 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2023 USD ($)	Mar. 06, 2024 $ / shares shares	Jan. 22, 2024 $ / shares shares
Asset Acquisition [Line Items]
Acquisition of exclusive license option															$ 28,000	$ 0
Research and development										$ 60,601		$ 15,901			$ 108,625	$ 46,433
Perspective Therapeutics, Inc
Asset Acquisition [Line Items]
Conversion ratio						0.1
Radiopharm Theranostics Limited
Asset Acquisition [Line Items]
Payments to acquire equity method investments					$ 5,000
Equity investment, shares (in shares) \| shares					149,625,180
Share price (in dollars per share) \| $ / shares					$ 0.03
Forecast \| Radiopharm Theranostics Limited
Asset Acquisition [Line Items]
Payments to acquire equity method investments													$ 5,000
Equity investment, shares (in shares) \| shares													149,925,040
Agreement with Perspective Therapeutics, Inc
Asset Acquisition [Line Items]
Disposal group consideration							$ 8,000
Perspective Therapeutics, Inc
Asset Acquisition [Line Items]
Research and development											$ 28,000
Perspective Therapeutics, Inc \| Licenses
Asset Acquisition [Line Items]
Acquisition of exclusive license option							$ 28,000
Perspective Therapeutics, Inc
Asset Acquisition [Line Items]
Subsidiary, ownership percentage, noncontrolling owner																	19.90%
Shares owned (in shares) \| shares						11,677,339
Perspective Therapeutics, Inc, Fully Diluted Basis
Asset Acquisition [Line Items]
Subsidiary, ownership percentage, noncontrolling owner																	17.35%
Perspective Common Stock
Asset Acquisition [Line Items]
Shares acquired (in shares) \| shares																	60,431,039	56,342,355
Percentage of acquired interest																		11.39%
Share price (in dollars per share) \| $ / shares																	$ 0.95	$ 0.37
Cerveau Technologies, Inc
Asset Acquisition [Line Items]
Payment for acquisitions								$ 10,000	$ 35,300
Asset acquisition, additional milestone payments									51,000
Cerveau Technologies, Inc \| Sales Milestones
Asset Acquisition [Line Items]
Asset acquisition, additional milestone payments									1,200,000
Cerveau Technologies, Inc \| Research Revenue Milestones
Asset Acquisition [Line Items]
Asset acquisition, additional milestone payments									$ 13,500
Radiopharm Theranostics Limited
Asset Acquisition [Line Items]
Payment for acquisitions					$ 2,000
Asset acquisition, additional milestone payments					$ 20,000
Research and development										2,000
Number of licensed asset acquired \| licensed_asset					2
Radiopharm Theranostics Limited \| Sales Milestones
Asset Acquisition [Line Items]
Asset acquisition, additional milestone payments					$ 6,500
Meilleur Technologies, Inc
Asset Acquisition [Line Items]
Payment for acquisitions				$ 32,900
Asset acquisition, additional milestone payments				43,000
Meilleur Technologies, Inc \| Forecast
Asset Acquisition [Line Items]
Payment for acquisitions														$ 10,000
Meilleur Technologies, Inc \| Sales Milestones
Asset Acquisition [Line Items]
Asset acquisition, additional milestone payments				830,000
Meilleur Technologies, Inc \| Research Revenue Milestones
Asset Acquisition [Line Items]
Asset acquisition, additional milestone payments				$ 5,000
Life Molecular Imaging, RM2 Technology
Asset Acquisition [Line Items]
Payment for acquisitions	$ 35,000		$ 1,000
Research and development										$ 36,000
Life Molecular Imaging, RM2 Technology \| Sales Milestones
Asset Acquisition [Line Items]
Asset acquisition, additional milestone payments \| €		€ 280.0
Life Molecular Imaging, RM2 Technology \| Regulatory Milestones
Asset Acquisition [Line Items]
Asset acquisition, additional milestone payments \| €		132.5
Life Molecular Imaging, RM2 Technology \| Collaboration Payments
Asset Acquisition [Line Items]
Asset acquisition, additional milestone payments \| €		25.0
Life Molecular Imaging, RM2 Technology \| Development Services
Asset Acquisition [Line Items]
Asset acquisition, additional milestone payments \| €		€ 5.0
Additional development services performed, term	24 months	24 months

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