TCPC BlackRock TCP Capital Corporation

We are offering $    in aggregate principal amount of    % notes due 2029 (the “Notes”). The Notes will mature on    , 2029. We will pay interest on the Notes on     and     of each year, beginning on    , 2024. In our sole discretion, we may redeem the Notes in whole or in part at any time or from time to time at the redemption price set forth under “Description of the Notes—Optional Redemption” in this prospectus supplement. In addition, holders may require us to repurchase the Notes for 100% of their principal amount upon the occurrence of a Change of Control Repurchase Event (as defined herein). The Notes will be issued in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof.

The Notes will be our direct unsecured obligations and will be pari passu, or equally in right of payment, with all outstanding and future unsubordinated indebtedness issued by us. Because the Notes will not be secured by any of our assets or any of the assets of our subsidiaries, they will be effectively junior to all of our existing and future secured indebtedness (including indebtedness that is initially unsecured to which we subsequently grant security), to the extent of the value of the assets securing such indebtedness. The Notes will be structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries since the Notes will be exclusively our obligations and not that of any of our subsidiaries. None of our existing subsidiaries is or will be a guarantor of the Notes and the Notes will not be required to be guaranteed by any subsidiary we may acquire or create in the future. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes, and any assets of our subsidiaries will not be directly available to satisfy the claims of our creditors, including holders of the Notes.

Tennenbaum Capital Partners, LLC (the “Advisor”) serves as our investment advisor. Our Advisor is a wholly-owned, indirect subsidiary of BlackRock, Inc. (together with its subsidiaries, “BlackRock”). BlackRock is a leading publicly traded investment management firm, with approximately $10.5 trillion of assets under management as of March 31, 2024. Series H of SVOF/MM, LLC, an affiliate of our Advisor, provides the administrative services necessary for us to operate.

You should read this prospectus supplement and the accompanying prospectus carefully before you invest in the Notes. We may not sell the Notes through agents, underwriters or dealers without delivery of the prospectus and a prospectus supplement describing the method and terms of the offering of the Notes.

Investing in our securities involves a high degree of risk, including credit risk and the risk of the use of leverage. Before buying any of our securities, you should read the discussion of the material risks of investing in our securities in “Risks” beginning on page S-8 of this prospectus supplement and, on page 9 of the accompanying prospectus, “Risk Factors” in our most recent Annual Report on Form 10-K and our Quarterly Report for the fiscal quarter ended March 31, 2024, in any of our other filings with the Securities and Exchange Commission (“SEC”) incorporated by reference herein and in any related free writing prospectus.

Neither the SEC nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

BlackRock TCP Capital Corp. (the “Company”) is an externally managed, closed-end, non-diversified management investment company that has elected to be regulated as a business development company (“BDC”) under the Investment Company Act of 1940 (the “1940 Act”). Our investment objective is to achieve high total returns through current income and capital appreciation, with an emphasis on principal protection. We seek to achieve this investment objective primarily through investments in debt securities of middle-market companies as well as small businesses. Our primary investment focus is investing in and originating leveraged loans to performing middle-market companies as well as small businesses.

This prospectus supplement and the accompanying prospectus contain important information you should know before investing in the Notes. We may also authorize one or more free writing prospectuses to be provided to you in connection with this offering. You should carefully read this prospectus supplement, the accompanying prospectus, any related free writing prospectus, and the documents incorporated by reference herein or therein, as applicable, before you invest and keep such documents for future reference. We file annual, quarterly and current reports, proxy statements and other information about us with the SEC. We maintain a website at http://www.tcpcapital.com and we make all of our annual, quarterly and current reports, proxy statements and other publicly filed information available, free of charge, on or through this website. You may also obtain free copies of our annual and quarterly reports and make inquiries by contacting us at BlackRock TCP Capital Corp., 2951 28^th Street, Suite 1000, Santa Monica, CA 90405, Attention: Investor Relations or by calling us collect at (310) 566-1000. The SEC maintains a website at http://www.sec.gov where such information is available without charge upon request. Information contained on our website is not incorporated by reference into this prospectus supplement or the accompanying prospectus, and you should not consider information contained on our website to be part of this prospectus supplement or the accompanying prospectus.

The debt securities in which we typically invest are either rated below investment grade by independent rating agencies or would be rated below investment grade if such securities were rated by rating agencies. Below investment grade securities, which are often referred to as “hybrid securities,” “junk bonds” or “leveraged loans” are regarded as having predominantly speculative characteristics with respect to the issuer’s capacity to pay interest and repay principal. They may be illiquid and difficult to value and typically do not require repayment of principal prior to maturity, which potentially heightens the risk that we may lose all or part of our investment. In addition, a substantial majority of the Company’s debt investments include interest reset provisions that may make it more difficult for the borrowers to make debt repayments to the Company if the reset provision has the effect of increasing the applicable interest rate.

Delivery of the Notes in book-entry form only through The Depository Trust Company will be made on or about    , 2024.

THE NOTES ARE NOT DEPOSITS OR OTHER OBLIGATIONS OF A BANK AND ARE NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY OTHER GOVERNMENT AGENCY.

This prospectus supplement is part of a registration statement that we have filed with the SEC. Pursuant to the Small Business Credit Availability Act, we are allowed to “incorporate by reference” the information that we file with the SEC, which means that we can disclose important information to you by referring you to those documents. We incorporate by reference into this prospectus supplement the documents listed below and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934 (the “Exchange Act”), including any filings on or after the date of this prospectus supplement from the date of filing (excluding any information furnished, rather than filed), until we have sold all of the offered securities to which this prospectus relates or the offering is otherwise terminated. The information incorporated by reference is an important part of this prospectus. Any statement in a document incorporated by reference into this prospectus will be deemed to be automatically modified or superseded to the extent a statement contained in (1) this prospectus or (2) any other subsequently filed document that is incorporated by reference into this prospectus modifies or supersedes such statement. The documents incorporated by reference herein include:

To obtain copies of these filings, see “Additional Information.” We will also provide without charge to each person, including any beneficial owner, to whom this prospectus supplement is delivered, upon written or oral request, a copy of any and all of the documents that have been or may be incorporated by reference in this prospectus supplement. You should direct requests for documents by writing to:

This prospectus supplement and the accompanying prospectus, including the documents incorporated by reference herein and therein, and any related free writing prospectus, may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act, which relate to future events or the future performance or financial condition of the Company. In addition to factors previously identified elsewhere in this prospectus supplement and the accompanying prospectus, or the documents incorporated by reference herein and therein, including the “Risks” section of this prospectus supplement, the accompanying prospectus and any related free writing prospectus, and factors identified in the “Risk Factors” section of the Annual Report, the following factors, among others, could cause actual results to differ materially from forward-looking statements or historical performance:

We use words such as “anticipate,” “believe,” “expect,” “intend,” “will,” “should,” “could,” “may,” “plan” and similar words to identify forward-looking statements. The forward-looking statements contained in this prospectus supplement and the accompanying prospectus, including the documents incorporated by reference herein and therein, involve risks and uncertainties, which change over time. Forward-looking statements speak only as of the date they are made, and we assume no duty to and do not undertake to update forward-looking statements. These forward-looking statements do not meet the safe harbor for forward-looking statements pursuant to Section 27A of the Securities Act of 1933 (the “Securities Act”) or Section 21E of the Exchange Act. Our actual results could differ materially from those implied or expressed in the forward-looking statements for any reason.

Statistical and market data used or incorporated by reference into this prospectus supplement, the accompanying prospectus and any related free writing prospectus has been obtained from governmental and independent industry sources and publications. We have not independently verified the data obtained from these sources. Forward-looking information obtained from these sources is subject to the same qualifications and the additional uncertainties regarding the other forward-looking statements contained in this prospectus supplement, the accompanying prospectus and any related free writing prospectus, for which the safe harbor provided in Section 27A of the Securities Act and Section 21E of the Exchange Act is not available.

It is important for you to read and consider all of the information contained in this prospectus supplement and the accompanying prospectus, including the documents incorporated by reference herein and therein, and any related free writing prospectus, in making your investment decision. You should also read and consider the information to which we have referred you in the sections entitled “Incorporation by Reference” and “Additional Information.”

We have not, and the underwriters have not, authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not, and the underwriters are not, making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information in this prospectus supplement, the accompanying prospectus and any related free writing prospectus is accurate only as of the date on the front of this prospectus supplement, the accompanying prospectus or any related free writing prospectus, as applicable, and the documents incorporated by reference herein or in the accompanying prospectus is accurate only as of their respective dates. Our business, financial condition and prospects may have changed since that date. To the extent the information contained in this prospectus supplement differs from the information contained in the accompanying prospectus, the information in this prospectus supplement shall control. You should carefully read this entire prospectus supplement, the accompanying prospectus, any free writing prospectus relating to this offering and the documents incorporated by reference in this prospectus supplement and the accompanying prospectus before investing in the Notes.

Investing in the Notes involves a high degree of risk. Before deciding whether to invest in the Notes, you should carefully consider the following supplementary risk factors together with the risk factors set forth in the accompanying prospectus and as described in the section titled “Risk Factors” in the Annual Report and in our Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2024, as well as in subsequent filings with the SEC, which are incorporated by reference into this prospectus supplement. The risks described below and in these documents are not the only risks we face. Additional risks and uncertainties not presently known to us might also impair our operations and performance. If any of the events described herein or in such documents occur, our business, financial condition and results of operations could be materially and adversely affected. Past financial performance may not be a reliable indicator of future performance, and historical trends should not be used to anticipate results or trends in future periods. If any of these risks actually occurs, our business, reputation, financial condition, results of operations, revenue and future prospects could be seriously harmed. Please also read carefully the section titled “Special Note Regarding Forward-Looking Statements” in this prospectus supplement.

The Notes will not be secured by any of our assets or any of the assets of our subsidiaries. As a result, the Notes are effectively junior to any secured indebtedness we have currently incurred and may incur in the future (or any indebtedness that is initially unsecured to which we subsequently grant security) to the extent of the value of the assets securing such indebtedness. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness and the secured indebtedness of our subsidiaries may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before such assets may be used to pay other creditors, including the holders of the Notes.

As of March 31, 2024, our total consolidated indebtedness was $1,306.4 million of which $667.4 million ranks pari passu in right of payment with the Notes and $639.0 million is effectively or structurally senior to the Notes. After giving effect to the issuance of the Notes and assuming the full repayment of the 2024 Notes at maturity with the net proceeds of the issuance of the Notes, our total consolidated indebtedness, would have been approximately $    million as of March 31, 2024.

The Notes will be exclusively our obligations and not that of any of our subsidiaries. None of our existing subsidiaries is or will be a guarantor of the Notes and the Notes are not required to be guaranteed by any subsidiaries we may acquire or create in the future. As a result, the Notes will be structurally subordinated to any existing and future liabilities and other indebtedness of our subsidiaries. The Notes do not restrict us or our subsidiaries from incurring indebtedness, in the future, nor do they limit the amount of indebtedness we can issue that is equal in right of payment to the Notes. As of March 31, 2024, we had $168.0 million aggregate principal amount of outstanding indebtedness under the revolving, multi-currency credit facility issued by SVCP (“SVCP Credit Facility”), $100.0 million aggregate principal amount of outstanding indebtedness under the senior secured revolving credit facility issued by TCPC Funding II (“TCPC Funding II Facility”), $221.0 million aggregate principal amount of outstanding indebtedness under the senior secured revolving credit facility originally issued by BCIC and assumed by BCIC Merger Sub (the “BCIC Credit Facility”), $92.0 million aggregate principal amount of senior unsecured notes originally issued by BCIC and assumed by BCIC Merger Sub (the “BCIC Notes”) and $150.0 million aggregate principal amount of the debentures guaranteed by the Small Business Administration (the “SBA Debentures”) issued and outstanding. All of such indebtedness is structurally senior to the Notes. In addition, our subsidiaries may incur substantial additional indebtedness in the future, all of which would be structurally senior to the Notes.

The indenture under which the Notes will be issued contains limited protection to holders of the Notes. The terms of the indenture and the Notes do not restrict our or any of our subsidiaries’ ability to engage in, or otherwise be a party to, a variety of corporate transactions, circumstances or events that could have a material adverse impact on your investment in the Notes. In particular, the terms of the indenture and the Notes will not place any restrictions on our or our subsidiaries’ ability to:

Furthermore, the terms of the indenture and the Notes do not protect holders of the Notes in the event that we experience changes (including significant adverse changes) in our financial condition, results of operations or credit ratings, as they do not require that we or our subsidiaries adhere to any financial tests or ratios or specified levels of net worth, revenues, income, cash flow or liquidity. Our ability to recapitalize, incur additional debt and take a number of other actions that are not limited by the terms of the Notes may have important consequences for you as a holder of the Notes, including making it more difficult for us to satisfy our obligations with respect to the Notes or negatively affecting the trading value of the Notes. Certain of our current debt instruments include more protections for their holders than the indenture and the Notes. In addition, other debt we issue or incur in the future could contain more protections for its holders than the indenture and the Notes, including additional covenants and events of default.

Our credit ratings are an assessment by rating agencies of our ability to pay our debts when due. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of the Notes. These credit ratings may not reflect the potential impact of risks relating to the structure or marketing of the Notes. Credit ratings are not a recommendation to buy, sell or hold any security, and may be revised or withdrawn at any time by the issuing organization in its sole discretion. Neither we nor any underwriter undertakes any obligation to maintain the ratings or to advise holders of Notes of any changes in ratings.

The Notes will be rated by Fitch Ratings, Inc. (“Fitch”) and Moody’s Investor Service, Inc. (“Moody’s”). There can be no assurance that Fitch and Moody’s ratings will remain for any given period of time or that such ratings will not be lowered or withdrawn entirely by Fitch and Moody’s if in its judgment future circumstances relating to the basis of the rating, such as adverse changes in our company, so warrant.

Our credit ratings are an assessment by third parties of our ability to pay our obligations. Consequently, real or anticipated changes in our credit ratings will generally affect the market value of the Notes. Our credit ratings, however, may not reflect the potential impact of risks related to market conditions generally or other factors discussed above on the market value of or trading market for the Notes.

Holders of the Notes will have the right to require us to repurchase their Notes upon the occurrence of a Change of Control Repurchase Event, as defined in the indenture governing the Notes, subject to certain conditions, at a repurchase price equal to 100% of their principal amount, plus accrued and unpaid interest, if any, as described under “Description of the Notes—Offer to Repurchase Upon a Change of Control Repurchase Event.” However, we may not have enough available cash or be able to obtain financing at the time we are required to make repurchases of Notes surrendered therefor. In addition, our ability to repurchase the Notes may be limited by law, by regulatory authority or by agreements governing our other indebtedness. Our failure to repurchase Notes at a time when the repurchase is required by the indenture would constitute a default under the indenture.

In addition, pursuant to the terms of the agreements governing each of the SVCP Credit Facility, the TCPC Funding II Facility and the BCIC Credit Facility, certain change of control or early repayment events, including the repurchase of the Notes upon a Change of Control Repurchase Event, will constitute an event of default thereunder entitling the lenders to accelerate any indebtedness outstanding under the SVCP Credit Facility, the TCPC Funding II Facility and/or the BCIC Credit Facility, as the case may be, and to terminate the agreements governing any such facility. In addition, the note purchase agreement governing the BCIC Notes contain a provision that would require BCIC Merger Sub, a subsidiary of the Company, to offer to purchase the BCIC Notes upon the occurrence of a change in control event, and the failure to comply therewith, shall result in an event of default thereunder. As a result, an event of default under any of the SVCP Credit Facility, the TCPC Funding II Facility and the BCIC Credit Facility and/or the indenture governing the BCIC Notes, to the extent not cured within their prescribed periods, as applicable, will result in a cross-default under each of the foregoing agreements, as well as the indenture governing the Notes.

The Notes are a new issue of securities, and there is no existing market for the Notes. We do not intend to apply for listing of the Notes on any securities exchange or for quotation of the Notes on any automated dealer quotation system. We have been advised by the underwriters that following the completion of the offering, the underwriters currently intend to make a market in the Notes. However, the underwriters are not obligated to do so and any market-making activities with respect to the Notes may be discontinued by them at any time in their sole discretion and without notice. In addition, any market-making activity will be subject to limits imposed by law. A market may not develop for the Notes, and there can be no assurance as to the liquidity of any market that may develop for the Notes. If an active, liquid market does not develop for the Notes, the market price and liquidity of the Notes may be adversely affected. If any of the Notes are traded after their initial issuance, they may trade at a discount from their initial discounted offering price. The liquidity of the trading market, if any, and future trading prices of the Notes will depend on many factors, including, among other things, prevailing interest rates, our operating results, financial performance and prospects, the market for similar securities and the overall securities market, and may be adversely affected by unfavorable changes in these factors. Accordingly, you may be required to bear the financial risk of an investment in the Notes for an indefinite period of time.

We may choose to redeem the Notes at times when prevailing interest rates are lower than the interest rate paid on the Notes. In this circumstance, you may not be able to reinvest the redemption proceeds in a comparable security at an effective interest rate as high as the Notes being redeemed.

We will initially issue the Notes in the form of one or more “global notes” registered in the name of Cede & Co., as nominee of DTC. Beneficial interests in global notes will be shown on, and transfers of global notes will be effected only through, the records maintained by DTC. Except in limited circumstances, we will not issue certificated notes. See “Description of Notes—Book Entry, Settlement and Clearance.” Accordingly, if you own a beneficial interest in a global note, then you will not be considered an owner or holder of the Notes. Instead, DTC or its nominee will be the sole holder of the Notes. Payments of principal, interest and other amounts on global notes will be made to the paying agent, who will remit the payments to DTC. We expect that DTC will then credit those payments to the DTC participant accounts that hold book-entry interests in the global notes and that those participants will credit the payments to indirect DTC participants. Unlike persons who have certificated notes registered in their names, owners of beneficial interests in global notes will not have the direct right to act on our solicitations for consents or requests for waivers or other actions from holders of the Notes. Instead, those beneficial owners will be permitted to act only to the extent that they have received appropriate proxies to do so from DTC or, if applicable, a DTC participant. The applicable procedures for the granting of these proxies may not be sufficient to enable owners of beneficial interests in global notes to vote on any requested actions on a timely basis.

We estimate that the net proceeds we will receive from the sale of the Notes in this offering will be approximately $    , after deducting the underwriting discount of $     payable by us and estimated offering expenses of approximately $     payable by us.

We intend to use the net proceeds from this offering to repay the 2024 Notes at or before maturity. Prior to such repayment, we may temporarily repay other indebtedness. We may also invest the net proceeds of this offering in accordance with its investment objective and/or use the net proceeds of this offering for other general corporate purposes, including payment of operating expenses.

As of March 31, 2024, we had outstanding an aggregate principal amount of $250.0 million of 2024 Notes. The 2024 Notes are general unsecured obligations of the Company. The 2024 Notes bear interest at an annual rate of 3.900%, payable semi-annually.

An affiliate of Morgan Stanley & Co. LLC is a lender and the administrative agent under the TCPC Funding II Facility and a lender under the BCIC Credit Facility. Accordingly, to the extent any proceeds of this offering are used to repay outstanding indebtedness under the TCPC Funding II Facility or the BCIC Credit Facility, an affiliate of Morgan Stanley & Co. LLC may receive more than 5% of the proceeds of this offering. See “Underwriting—Other Relationships” for additional information.

The following are our outstanding shares of capital stock as of May 1, 2024.

The following description of the particular terms of the   % Notes due 2029 supplements and, to the extent inconsistent with, replaces the description of the general terms and provisions of the debt securities set forth in the accompanying prospectus.

We will issue the Notes under a base indenture, dated as of August 11, 2017, between us and U.S. Bank Trust Company, National Association, as trustee (the “trustee”), as supplemented by a separate supplemental indenture, to be dated as of the settlement date for the Notes. We may issue additional Notes (“additional Notes”) from time to time under the indenture, subject to the terms and conditions of the indenture. As used in this prospectus supplement, all references to the indenture mean the base indenture as supplemented by the supplemental indenture. The terms of the Notes include those expressly set forth in the indenture and those made part of the indenture by reference to the Trust Indenture Act of 1939 (the “TIA”).

The following description is a summary of the material provisions of the Notes and the indenture and does not purport to be complete. This summary is subject to and is qualified by reference to all the provisions of the Notes and the indenture, including the definitions of certain terms used in the indenture. We urge you to read these documents because they, and not this description, define your rights as a holder of the Notes. You may request a copy of the indenture from us by making a written request to BlackRock TCP Capital Corp., 2951 28^th Street, Suite 1000, Santa Monica, California 90405, Attention: Investor Relations or by calling us at (310) 566-1000.

For purposes of this description, references to “we,” “our” and “us” refer only to BlackRock TCP Capital Corp. and not to any of its current or future subsidiaries and references to “subsidiaries” refer only to our consolidated subsidiaries and exclude any investments held by BlackRock TCP Capital Corp. in the ordinary course of business which are not, under GAAP, consolidated on the financial statements of BlackRock TCP Capital Corp. and its subsidiaries.

The Notes:

The indenture does not limit the amount of debt that may be issued by us or our subsidiaries under the indenture or otherwise. The indenture does not contain any financial covenants and does not restrict us from paying dividends or issuing or repurchasing our other securities. Other than restrictions described under “—Offer to Repurchase Upon a Change of Control Repurchase Event” and “—Merger, Consolidation or Sale of Assets” below, the indenture does not contain any covenants or other provisions designed to afford holders of the Notes protection in the event of a highly leveraged transaction involving us or in the event of a decline in our credit rating as the result of a takeover, recapitalization, highly leveraged transaction or similar restructuring involving us that could adversely affect such holders.

We may, without the consent of the holders, issue additional Notes under the indenture with the same terms (except for the issue date, public offering price and, if applicable, the initial interest payment date) and with the

same CUSIP numbers as the Notes offered hereby in an unlimited aggregate principal amount; provided that such additional Notes must be part of the same issue as the Notes offered hereby for U.S. federal income tax purposes.

We do not intend to list the Notes on any securities exchange or any automated dealer quotation system.

We will pay the principal of, and interest on, Notes in global form registered in the name of or held by DTC or its nominee in immediately available funds to DTC or its nominee, as the case may be, as the registered holder of such Global Note (as defined herein).

Payment of principal of (and premium, if any) and any such interest on the Notes will be made at the corporate trust office of the trustee in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided, however, that at our option payment of interest may be made by check mailed to the address of the person entitled thereto as such address shall appear in the security register.

A holder of Notes may transfer or exchange Notes at the office of the registrar in accordance with the indenture. The registrar and the trustee may require a holder, among other things, to furnish appropriate endorsements and transfer documents. No service charge will be imposed by us, the trustee or the registrar for any registration of transfer or exchange of Notes, but we may require a holder to pay a sum sufficient to cover any transfer tax or other similar governmental charge required by law or permitted by the indenture.

The registered holder of a Note will be treated as its owner for all purposes.

The trustee, registrar and transfer agent shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer or exchange imposed under the indenture or under applicable law with respect to any transfer or exchange of any interest in any note (including any transfers between or among participants or other beneficial owners of interests in any Global Note) other than to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by the terms of, the indenture, and to examine the same to determine substantial compliance as to form with the express requirements hereof.

The Notes will bear cash interest at a rate of   % per year until maturity. Interest on the Notes will accrue from   , 2024 or from the most recent date on which interest has been paid or duly provided for. Interest will be payable semiannually in arrears on      and      of each year, beginning on   , 2024 with respect to the Notes offered hereby.

Interest will be paid to the person in whose name a Note is registered at 5:00 p.m. New York City time (the “close of business”) on     or    , as the case may be, immediately preceding the relevant interest payment date. Interest on the Notes will be computed on the basis of a 360-day year composed of twelve 30-day months.

If any interest payment date, redemption date, the maturity date or any earlier required repurchase date upon a Change of Control Repurchase Event of a Note falls on a day that is not a business day, the required payment will be made on the next succeeding business day and no interest on such payment will accrue in respect of the delay. The term “business day” means, with respect to any Note, any day other than a Saturday, a Sunday or a day on which banking institutions in New York are authorized or obligated by law or executive order to close.

The Notes will be our direct unsecured obligations and will be pari passu, or equally in right of payment, with all outstanding and future unsubordinated indebtedness issued by us. Because the Notes will not be secured by any of our assets or any of the assets of our subsidiaries, they will be effectively junior to all of our existing and future secured indebtedness (including indebtedness that is initially unsecured to which we subsequently grant security), to the extent of the value of the assets securing such indebtedness. The Notes will be structurally subordinated to all existing and future indebtedness and other obligations of any of our subsidiaries since the Notes will be exclusively our obligations and not that of any of our subsidiaries. None of our existing

subsidiaries is or will be a guarantor of the Notes and the Notes will not be required to be guaranteed by any subsidiary we may acquire or create in the future. In any liquidation, dissolution, bankruptcy or other similar proceeding, the holders of any of our existing or future secured indebtedness may assert rights against the assets pledged to secure that indebtedness in order to receive full payment of their indebtedness before the assets may be used to pay other creditors, including the holders of the Notes, and any assets of our subsidiaries will not be directly available to satisfy the claims of our creditors, including holders of the Notes.

As of March 31, 2024, our total consolidated indebtedness was $1,306.4 million of which $667.4 million ranks pari passu in right of payment with the Notes and 639.0 million is effectively or structurally senior to the Notes. After giving effect to the issuance of the Notes and assuming the full repayment of the 2024 Notes at maturity with the net proceeds of the issuance of the Notes, our total consolidated indebtedness, would have been approximately $   million as of March 31, 2024. See “Capitalization.”

Prior to     (one month prior to their maturity date) (the “Par Call Date”), we may redeem the Notes at our option, in whole or in part, at any time and from time to time, at a redemption price (expressed as a percentage of principal amount and rounded to three decimal places) equal to the greater of:

On or after the Par Call Date, we may redeem the Notes, in whole or in part, at any time and from time to time, at a redemption price equal to 100% of the principal amount of the Notes being redeemed plus accrued and unpaid interest thereon to the redemption date.

“Treasury Rate” means, with respect to any redemption date, the yield determined by us in accordance with the following two paragraphs.

The Treasury Rate shall be determined by us after 4:15 p.m., New York City time (or after such time as yields on U.S. government securities are posted daily by the Board of Governors of the Federal Reserve System), on the third business day preceding the redemption date based upon the yield or yields for the most recent day that appear after such time on such day in the most recent statistical release published by the Board of Governors of the Federal Reserve System designated as “Selected Interest Rates (Daily) - H.15” (or any successor designation or publication) (“H.15”) under the caption “U.S. government securities–Treasury constant maturities–Nominal” (or any successor caption or heading) (“H.15 TCM”). In determining the Treasury Rate, we shall select, as applicable: (1) the yield for the Treasury constant maturity on H.15 exactly equal to the period from the redemption date to the Par Call Date (the “Remaining Life”); or (2) if there is no such Treasury constant maturity on H.15 exactly equal to the Remaining Life, the two yields – one yield corresponding to the Treasury constant maturity on H.15 immediately shorter than and one yield corresponding to the Treasury constant maturity on H.15 immediately longer than the Remaining Life – and shall interpolate to the Par Call Date on a straight-line basis (using the actual number of days) using such yields and rounding the result to three decimal places; or (3) if there is no such Treasury constant maturity on H.15 shorter than or longer than the Remaining Life, the yield for the single Treasury constant maturity on H.15 closest to the Remaining Life. For purposes of this paragraph, the applicable Treasury constant maturity or maturities on H.15 shall be deemed to have a maturity date equal to the relevant number of months or years, as applicable, of such Treasury constant maturity from the redemption date.

If on the third business day preceding the redemption date H.15 TCM is no longer published, we shall calculate the Treasury Rate based on the rate per annum equal to the semi-annual equivalent yield to maturity at 11:00 a.m., New York City time, on the second business day preceding such redemption date of the United States Treasury security maturing on, or with a maturity that is closest to, the Par Call Date, as applicable. If there is no United States Treasury security maturing on the Par Call Date but there are two or more United States Treasury securities with a maturity date equally distant from the Par Call Date, one with a maturity date preceding the Par

Call Date and one with a maturity date following the Par Call Date, we shall select the United States Treasury security with a maturity date preceding the Par Call Date. If there are two or more United States Treasury securities maturing on the Par Call Date or two or more United States Treasury securities meeting the criteria of the preceding sentence, we shall select from among these two or more United States Treasury securities the United States Treasury security that is trading closest to par based upon the average of the bid and asked prices for such United States Treasury securities at 11:00 a.m., New York City time. In determining the Treasury Rate in accordance with the terms of this paragraph, the semi-annual yield to maturity of the applicable United States Treasury security shall be based upon the average of the bid and asked prices (expressed as a percentage of principal amount) at 11:00 a.m., New York City time, of such United States Treasury security, and rounded to three decimal places.

Our actions and determinations in determining the redemption price shall be conclusive and binding for all purposes, absent manifest error.

Notice of any redemption will be mailed or electronically delivered (or otherwise transmitted in accordance with the depositary’s procedures) at least 10 days but not more than 60 days before the redemption date to each holder of Notes to be redeemed.

In the case of a partial redemption, selection of the Notes for redemption will be made by lot or by such other method in accordance with the policies and procedures of the Trustee. No notes of a principal amount of $2,000 or less will be redeemed in part. If any Note is to be redeemed in part only, the notice of redemption that relates to the Note will state the portion of the principal amount of the note to be redeemed. A new Note in a principal amount equal to the unredeemed portion of the Note will be issued in the name of the holder of the Note upon surrender for cancellation of the original Note. For so long as the Notes are held by DTC (or another depositary), the redemption of the Notes shall be done in accordance with the policies and procedures of the depositary.

Any notice of redemption may, at our discretion, be subject to one or more conditions precedent, including completion of a corporate transaction. In such event, the related notice of redemption shall describe each such condition and, if applicable, shall state that, at our discretion, the date of redemption may be delayed until such time (including more than 60 days after the notice of redemption was given) as any or all such conditions shall be satisfied or waived, or such redemption may not occur and such notice may be rescinded in the event that any or all such conditions shall not have been satisfied (or waived by us in our sole discretion) by the date of redemption, or by the date of redemption as so delayed.

Unless we default in payment of the redemption price, on and after the redemption date interest will cease to accrue on the notes or portions thereof called for redemption.

If a Change of Control Repurchase Event occurs, unless we have exercised our right to redeem the Notes in full, we will make an offer to each holder of Notes to repurchase all or any part (in minimum denominations of $2,000 and integral multiples of $1,000 principal amount) of that holder’s Notes at a repurchase price in cash equal to 100% of the aggregate principal amount of Notes repurchased plus any accrued and unpaid interest on the Notes repurchased to, but excluding, the date of purchase. Within 30 days following any Change of Control Repurchase Event or, at our option, prior to any Change of Control, but after the public announcement of the Change of Control, we will mail a notice to each holder describing the transaction or transactions that constitute or may constitute the Change of Control Repurchase Event and offering to repurchase Notes on the payment date specified in the notice, which date will be no earlier than 30 days and no later than 60 days from the date such notice is mailed. The notice shall, if mailed prior to the date of consummation of the Change of Control, state that the offer to purchase is conditioned on the Change of Control Repurchase Event occurring on or prior to the payment date specified in the notice. We will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change of Control Repurchase Event. To the extent that the provisions of any securities laws or regulations conflict with the Change of Control Repurchase Event provisions of the Notes, we will comply with the applicable securities laws and regulations and will not be deemed to have breached our obligations under the Change of Control Repurchase Event provisions of the Notes by virtue of such conflict.

On the Change of Control Repurchase Event payment date, subject to extension if necessary to comply with the provisions of the 1940 Act, we will, to the extent lawful:

The paying agent will promptly remit to each holder of Notes properly tendered the purchase price for the Notes, and the trustee will promptly authenticate and mail (or cause to be transferred by book-entry) to each holder a new Note equal in principal amount to any unpurchased portion of any Notes surrendered; provided that each new Note will be in a minimum principal amount of $2,000 or an integral multiple of $1,000 in excess thereof.

We will not be required to make an offer to repurchase the Notes upon a Change of Control Repurchase Event if a third party makes an offer in the manner, at the times and otherwise in compliance with the requirements for an offer made by us and such third party purchases all Notes properly tendered and not withdrawn under its offer.

The source of funds that will be required to repurchase Notes in the event of a Change of Control Repurchase Event will be our available cash or cash generated from our operations or other potential sources, including funds provided by a purchaser in the Change of Control transaction, borrowings, sales of assets or sales of equity. We cannot assure you that sufficient funds from such sources will be available at the time of any Change of Control Repurchase Event to make required repurchases of Notes tendered. The terms of the SVCP Credit Facility, the TCPC Funding II Facility and the BCIC Credit Facility provide that certain change of control and early repayment events, including the offer to repurchase the Notes or certain other indebtedness upon a change of control, will constitute an event of default thereunder entitling the lenders to accelerate any indebtedness outstanding under the SVCP Credit Facility, the TCPC Funding II Facility and/or the BCIC Credit Facility at that time and to terminate the SVCP Credit Facility, the TCPC Funding II Facility and/or the BCIC Credit Facility. In addition, the note purchase agreement governing the BCIC Notes contain a provision that would require BCIC Merger Sub to offer to purchase the BCIC Notes upon the occurrence of a change in control. A failure to purchase any tendered BICIC Notes would constitute an event of default under the note purchase agreement for the BCIC Notes, which would, in turn, also constitute a default under the SVCP Credit Facility, the TCPC Funding II Facility and the BCIC Credit Facility and the indenture governing the Notes. See “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Liquidity and capital resources” in our Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2024 for a general discussion of our indebtedness. Our future debt instruments may contain similar restrictions and provisions. It is possible that we will not have sufficient funds at the time of the Change of Control Repurchase Event to make the required repurchase of the Notes and/or our other debt. See “Risks—We may or may not have the ability to raise the funds necessary to repurchase the Notes upon a Change of Control Repurchase Event, and our debt may contain limitations on our ability to pay cash upon repurchase of the Notes.”

The definition of “Change of Control” includes a phrase relating to the direct or indirect sale, transfer, conveyance or other disposition of “all or substantially all” of our properties or assets and those of our subsidiaries taken as a whole. Although there is a limited body of case law interpreting the phrase “substantially all,” there is no precise, established definition of the phrase under applicable law. Accordingly, the ability of a holder of Notes to require us to repurchase the Notes as a result of a sale, transfer, conveyance or other disposition of less than all of our assets and the assets of our subsidiaries taken as a whole to another person or group may be uncertain.

For purposes of the Notes:

“Below Investment Grade Rating Event” means the Notes are downgraded below Investment Grade by both Rating Agencies during the period commencing on the date of the public notice of an arrangement that results in a Change of Control and terminating on the date that is 60 days following public notice of the occurrence of a Change of Control (which period shall be extended so long as the rating of the Notes is under publicly announced consideration for possible downgrade by a Rating Agency); provided that a Below Investment Grade Rating Event otherwise arising by virtue of a particular reduction in rating shall not be deemed to have occurred in respect of a particular Change of Control (and thus shall not be deemed a Below Investment Grade Rating Event for purposes of the definition of Change of Control Repurchase Event hereunder) if the Rating Agency making the reduction in rating to which this definition would otherwise apply does not announce or publicly confirm or inform the trustee in writing at its request that the reduction was the result, in whole or in part, of any event or circumstance comprised of or arising as a result of, or in respect of, the applicable Change of Control (whether or not the applicable Change of Control shall have occurred at the time of the Below Investment Grade Rating Event).

“Change of Control” means the occurrence of any of the following:

“Change of Control Repurchase Event” means the occurrence of a Change of Control and a Below Investment Grade Rating Event.

“Controlled Subsidiary” means any subsidiary of BlackRock TCP Capital Corp., 50% or more of the outstanding equity interests of which are owned by BlackRock TCP Capital Corp. and its direct or indirect subsidiaries and of which BlackRock TCP Capital Corp. possesses, directly or indirectly, the power to direct or cause the direction of the management or policies, whether through the ownership of voting equity interests, by agreement or otherwise.

“Fitch” means Fitch Ratings, Inc., and its successors.

“Investment Grade” means, as applicable, a rating of BBB- or better by Fitch (or its equivalent under any successor rating categories of Fitch) or Baa3 or better by Moody’s (or its equivalent under any successor rating categories of Moody’s) (or, in each case, if such Rating Agency ceases to rate the Notes for reasons outside of our control, the equivalent investment grade credit rating from any Rating Agency selected by us as a replacement Rating Agency).

“Moody’s” means Moody’s Investor Service, Inc. and its successors.

“Permitted Holders” means (i) us, (ii) one or more of our Controlled Subsidiaries and (iii) Tennenbaum Capital Partners, LLC or any affiliate of Tennenbaum Capital Partners, LLC that is organized under the laws of a jurisdiction located in the United States of America and in the business of managing or advising clients.

“Rating Agencies” means:

“Voting Stock” as applied to stock of any person, means shares, interests, participations or other equivalents in the equity interest (however designated) in such person having ordinary voting power for the election of a majority of the directors (or the equivalent) of such person, other than shares, interests, participations or other equivalents having such power only by reason of the occurrence of a contingency.

In addition to the covenants described in the base indenture, the following covenants shall apply to the Notes. To the extent of any conflict or inconsistency between the base indenture and the following covenants, the following covenants shall govern:

The indenture provides that we will not merge or consolidate with or into any other person (other than a merger of a wholly owned subsidiary into us), or sell, transfer, lease, convey or otherwise dispose of all or substantially all our property (provided that, for the avoidance of doubt, a pledge of assets pursuant to any secured debt instrument of BlackRock TCP Capital Corp. or its Controlled Subsidiaries shall not be deemed to be any such sale, transfer, lease, conveyance or disposition) in any one transaction or series of related transactions unless:

For the purposes of this covenant, the sale, transfer, lease, conveyance or other disposition of all the property of one or more of our subsidiaries, which property, if held by us instead of such subsidiaries, would constitute all or substantially all of our property on a consolidated basis, shall be deemed to be the transfer of all or substantially all of our property.

Although there is a limited body of case law interpreting the phrase “substantially all,” there is no precise established definition of the phrase under applicable law. Accordingly, in certain circumstances there may be a degree of uncertainty as to whether a particular transaction would involve “all or substantially all” of the properties or assets of a person. As a result, it may be unclear as to whether the merger, consolidation or sale of assets covenant would apply to a particular transaction as described above absent a decision by a court of competent jurisdiction. Although these types of transactions are permitted under the indenture, certain of the foregoing transactions could constitute a Change of Control that results in a Change of Control Repurchase Event permitting each holder to require us to repurchase the Notes of such holder as described above.

An assumption by any person of obligations under the Notes and the indenture might be deemed for U.S. federal income tax purposes to be an exchange of the Notes for new Notes by the holders thereof, resulting in recognition of gain or loss for such purposes and possibly other adverse tax consequences to the holders. Holders should consult their own tax advisors regarding the tax consequences of such an assumption.

Each of the following is an event of default:

If an event of default occurs and is continuing, then and in every such case (other than an event of default specified in item (6) above) the trustee or the holders of at least 25% in principal amount of the outstanding Notes may declare the entire principal amount of Notes to be due and immediately payable, by a notice in writing to us (and to the trustee if given by the holders), and upon any such declaration such principal or specified portion thereof shall become immediately due and payable. Notwithstanding the foregoing, in the case of the event of default described in item (6) above, 100% of the principal of and accrued and unpaid interest on the Notes will automatically become due and payable.

At any time after a declaration of acceleration with respect to the Notes has been made and before a judgment or decree for payment of the money due has been obtained by the trustee, the holders of a majority in principal amount of the outstanding Notes, by written notice to us and the trustee, may rescind and annul such declaration and its consequences if (i) we have paid or deposited with the trustee a sum sufficient to pay all overdue installments of interest, if any, on all outstanding Notes, the principal of (and premium, if any, on) all

outstanding Notes that have become due otherwise than by such declaration of acceleration and interest thereon at the rate or rates borne by or provided for in such Notes, to the extent that payment of such interest is lawful interest upon overdue installments of interest at the rate or rates borne by or provided for in such Notes, and all sums paid or advanced by the trustee and the reasonable compensation, expenses, disbursements and advances of the trustee, its agents and counsel, and (ii) all events of default with respect to the Notes, other than the nonpayment of the principal of (or premium, if any, on) or interest on such Notes that have become due solely by such declaration of acceleration, have been cured or waived. No such rescission will affect any subsequent default or impair any right consequent thereon.

No holder of Notes will have any right to institute any proceeding, judicial or otherwise, with respect to the indenture, or for the appointment of a receiver or trustee, or for any other remedy under the indenture, unless:

Notwithstanding any other provision in the indenture, the holder of any Note shall have the right, which is absolute and unconditional, to receive payment of the principal of (and premium, if any, on) and interest, if any, on such Note on the stated maturity or maturity expressed in such Note (or, in the case of redemption, on the redemption date or, in the case of repayment at the option of the holders, on the repayment date) and to institute suit for the enforcement of any such payment, and such rights shall not be impaired without the consent of such holder.

The trustee shall be under no obligation to exercise any of the rights or powers vested in it by the indenture at the request or direction of any of the holders of the Notes unless such holders shall have offered to the trustee security or indemnity satisfactory to the trustee against the costs, expenses and liabilities which might be incurred by it in compliance with such request or direction. Subject to the foregoing, the holders of a majority in principal amount of the outstanding Notes shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the trustee or exercising any trust or power conferred on the trustee with respect to the Notes; provided that (i) such direction shall not be in conflict with any rule of law or with this indenture, (ii) the trustee may take any other action deemed proper by the trustee that is not inconsistent with such direction and (iii) the trustee need not take any action that it determines in good faith may involve it in personal liability or be unjustly prejudicial to the holders of Notes not consenting.

The holders of not less than a majority in principal amount of the outstanding Notes may on behalf of the holders of all of the Notes waive any past default under the indenture with respect to the Notes and its consequences, except a default (i) in the payment of (or premium, if any, on) or interest, if any, on any Note, or (ii) in respect of a covenant or provision of the indenture which cannot be modified or amended without the consent of the holder of each outstanding Note affected. Upon any such waiver, such default shall cease to exist, and any event of default arising therefrom shall be deemed to have been cured, for every purpose, but no such waiver shall extend to any subsequent or other default or event of default or impair any right consequent thereto.

We are required to deliver to the trustee, within 120 days after the end of each fiscal year, an officers’ certificate stating that to the knowledge of the signers whether we are in default in the performance of any of the terms, provisions or conditions of the indenture.

Within 90 days after the occurrence of any default under the indenture with respect to the Notes, the trustee shall transmit notice to the holders of the Notes of any such default that is actually known to the trustee, unless such default shall have been cured or waived; provided, however, that, except in the case of a default in the payment of the principal of (or premium, if any, on) or interest, if any, on any Note, the trustee shall be

protected in withholding such notice if and so long as the board of directors, the executive committee or a trust committee of directors of the trustee in good faith determines that withholding of such notice is in the interest of the holders of the Notes. The trustee shall not be deemed to have knowledge or notice of the occurrence of any default or event of default, unless a responsible trust officer of the trustee shall have received written notice from the us or a holder describing such default or event of default, and stating that such notice is a notice of default or event of default.

We may satisfy and discharge our obligations under the indenture that have not already been delivered to the trustee for cancellation and which have either become due and payable or are by their terms due and payable within one year (or scheduled for redemption within one year) by irrevocably depositing with the trustee money in an amount sufficient to pay and discharge the entire indebtedness on the Notes not previously delivered to the trustee for cancellation, for principal and any premium and interest to the date of such deposit (in the case of Notes which have become due and payable) or to the stated maturity or redemption date, as the case may be and we have paid all other sums payable under the applicable indenture. Such discharge is subject to terms contained in the indenture.

In addition, the Notes are subject to defeasance and covenant defeasance, in each case, in accordance with the terms of the indenture. Defeasance means that, subject to the satisfaction of certain conditions, including, but not limited to, (i) depositing in trust for the benefit of the holders of the Notes a combination of money and U.S. government or U.S. government agency notes or bonds that will generate enough cash to make interest, principal and any other payments on the Notes on their various due date and (ii) delivering to the Trustee an opinion of counsel stating that (a) we have received from, or there has been published by, the Internal Revenue Service (the “IRS”) a ruling, or (b) since the date of execution of the indenture, there has been a change in the applicable federal income tax law, in either case to the effect that, and based thereon, the holders of the Notes and any coupons appertaining thereto will not recognize income, gain or loss for federal income tax purposes as a result of such defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such defeasance had not occurred, we can legally release ourselves from all payment and other obligations on the Notes. Covenant defeasance means that, subject to the satisfaction of certain conditions, including, but not limited to, (i) depositing in trust for the benefit of the holders of the Notes a combination of money and U.S. government or U.S. government agency notes or bonds that will generate enough cash to make interest, principal and any other payments on the Notes on their various due dates and (ii) delivering to the Trustee an opinion of counsel to the effect that the holders of the Notes and any coupons appertaining thereto will not recognize income, gain or loss for federal income tax purposes as a result of such covenant defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such covenant defeasance had not occurred, we will be released from some of the restrictive covenants in the indenture.

U.S. Bank Trust Company, National Association is the trustee, security registrar and paying agent. U.S. Bank Trust Company, National Association, in each of its capacities, including, without limitation, as trustee, security registrar and paying agent, assumes no responsibility for the accuracy or completeness of the information concerning us or our affiliates or any other party contained in this document or the related documents or for any failure by us or any other party to disclose events that may have occurred and may affect the significance or accuracy of such information, or for any information provided to it by us, including, but not limited to, settlement amounts and any other information.

We may maintain banking relationships in the ordinary course of business with the trustee and its affiliates.

The indenture provides that it and the Notes shall be governed by and construed in accordance with the laws of the State of New York, without regard to principles of conflicts of laws that would cause the application of laws of another jurisdiction.

The Notes will be initially issued in the form of one or more registered Notes in global form, without interest coupons (the “Global Notes”). Upon issuance, each of the Global Notes will be deposited with the trustee as custodian for DTC and registered in the name of Cede & Co., as nominee of DTC.

Ownership of beneficial interests in a Global Note will be limited to persons who have accounts with DTC (“DTC participants”) or persons who hold interests through DTC participants. We expect that under procedures established by DTC:

Beneficial interests in Global Notes may not be exchanged for Notes in physical, certificated form except in the limited circumstances described below.

All interests in the Global Notes will be subject to the operations and procedures of DTC. We provide the following summary of those operations and procedures solely for the convenience of investors. The operations and procedures of DTC are controlled by that settlement system and may be changed at any time. Neither we nor the underwriters are responsible for those operations or procedures.

DTC has advised us that it is:

DTC was created to hold securities for its participants and to facilitate the clearance and settlement of securities transactions between its participants through electronic book-entry changes to the accounts of its participants. DTC’s participants include securities brokers and dealers, including the underwriters; banks and trust companies; clearing corporations and other organizations. Indirect access to DTC’s system is also available to others such as banks, brokers, dealers and trust companies; these indirect participants clear through or maintain a custodial relationship with a DTC participant, either directly or indirectly. Investors who are not DTC participants may beneficially own securities held by or on behalf of DTC only through DTC participants or indirect participants in DTC.

So long as DTC’s nominee is the registered owner of a Global Note, that nominee will be considered the sole owner or holder of the Notes represented by that Global Note for all purposes under the indenture. Except as provided below, owners of beneficial interests in a Global Note:

As a result, each investor who owns a beneficial interest in a Global Note must rely on the procedures of DTC to exercise any rights of a holder of Notes under the indenture (and, if the investor is not a participant or an indirect participant in DTC, on the procedures of the DTC participant through which the investor owns its interest).

Payments of principal and interest with respect to the Notes represented by a Global Note will be made by the trustee to DTC’s nominee as the registered holder of the Global Note. Neither we nor the Trustee will have any responsibility or liability for the payment of amounts to owners of beneficial interests in a Global Note, for any aspect of the records relating to or payments made on account of those interests by DTC, or for maintaining, supervising or reviewing any records of DTC relating to those interests.

Payments by participants and indirect participants in DTC to the owners of beneficial interests in a Global Note will be governed by standing instructions and customary industry practice and will be the responsibility of those participants or indirect participants and DTC.

Transfers between participants in DTC will be effected under DTC’s procedures and will be settled in same day funds.

Notes in physical, certificated form will be issued and delivered to each person that DTC identifies as a beneficial owner of the related Notes only if:

The following is a general summary of U.S. federal income tax considerations generally applicable to the ownership and disposition of the Notes by Non-U.S. Holders (as defined herein). This discussion is based upon the Internal Revenue Code of 1986, as amended (the “Code”), Treasury Regulations and judicial decisions and administrative interpretations thereof, all as of the date hereof and all of which are subject to change or differing interpretations, possibly with retroactive effect. No ruling from the IRS has been or will be sought regarding any matter discussed herein. No assurance can be given that the IRS would not assert, or that a court would not sustain, a position contrary to any of the tax aspects set forth below.

This discussion applies only to a Non-U.S. Holder that acquires the Notes for cash pursuant to this offering at the issue price of the Notes (i.e., the first price at which a substantial amount of the Notes is sold for cash other than to bond houses, brokers or similar persons or organizations acting in the capacity of underwriters, placement agents or wholesalers) and that holds the Notes as a capital asset (generally, property held for investment) under the Code. This discussion does not address any U.S. federal estate or gift tax consequences or any state, local or non-U.S. tax consequences. In addition, this discussion does not address all aspects of U.S. federal income taxation that may be applicable to investors in light of their particular circumstances, or to investors subject to special treatment under U.S. federal income tax law, including:

For purposes of this summary, the term “Non-U.S. Holder” means a beneficial owner of a Note that, for U.S. federal income tax purposes, is neither a partnership nor any of the following:

If a partnership (including any entity or arrangement treated as a partnership for U.S. federal income tax purposes) owns Notes, the tax treatment of a partner in the partnership will depend upon the status of the partner and the activities of the partnership. Partners in a partnership that owns the Notes should consult their tax advisors as to the particular U.S. federal income tax consequences applicable to them.

We encourage investors to consult their tax advisors regarding the specific consequences of an investment in the Notes, including tax reporting requirements, the applicability of U.S. federal, state or local and foreign tax laws, eligibility for the benefits of any applicable tax treaty and the effect of any possible changes in the tax laws.

Interest paid or accrued to a Non-U.S. Holder generally will not be subject to U.S. federal income or withholding tax if the interest is not effectively connected with the Non-U.S. Holder’s conduct of a trade or business within the United States and the Non-U.S. Holder:

If a Non-U.S. Holder does not qualify for an exemption under these rules, interest paid on the Notes will generally be subject to withholding tax at the rate of 30% (or lower applicable treaty rate). Interest effectively connected with a Non-U.S. Holder’s conduct of a U.S. trade or business (and, if required by an applicable income tax treaty, which is attributable to a U.S. permanent establishment), however, would not be subject to the withholding tax so long as the Non-U.S. Holder provides us or our paying agent with a valid certification (currently on IRS Form W-8ECI), and instead such interest income would generally be subject to U.S. federal income tax on a net basis at the tax rates applicable to United States persons generally. In addition, if a Non-U.S. Holder is a foreign corporation and the interest is effectively connected with its conduct of a U.S. trade or business, it may also be subject to a 30% (or lower applicable treaty rate) branch profits tax on its effectively connected earnings and profits for the taxable year, subject to adjustments. To claim the benefit of a tax treaty, a Non-U.S. Holder must provide a properly executed IRS Form W-8BEN or W-8BEN-E (or other applicable form) to us or our paying agent before the payment of interest and may be required to obtain a U.S. taxpayer identification number and provide documentary evidence issued by foreign governmental authorities to prove residence in the foreign country.

Any gain recognized by a Non-U.S. Holder on the sale, exchange, retirement, redemption or other taxable disposition of the Notes (except with respect to accrued and unpaid interest, which would be taxed as described under “Interest on the Notes” above) generally will not be subject to U.S. federal income tax unless:

If a Non-U.S. Holder is a holder described in the first bullet point above, the gain derived from the sale, exchange, retirement, redemption or other taxable disposition of its Notes generally will be subject to U.S. federal income tax on a net basis at the tax rates applicable to United States persons generally. In addition, if such Non-U.S. Holder is a foreign corporation, it may also be subject to a 30% (or lower applicable treaty rate) branch profits tax on its effectively connected earnings and profits for the taxable year, subject to adjustments. If a Non-U.S. Holder is a holder described in the second bullet point above, it will be subject to a flat 30% U.S. federal income tax rate (or lower applicable treaty rate) on the gain derived from the sale, exchange, retirement, redemption or other taxable disposition of its Notes, which may be offset by U.S.-source capital losses.

U.S. federal withholding at a rate of 30% will be required on interest in respect of Notes held by or through “foreign financial institutions” (as defined in the Code), including investment funds, unless such institution enters into an agreement with the Secretary of the Treasury to report, on an annual basis, information with respect to interests in, and accounts maintained by, the institution to the extent such interests or accounts are held by certain United States persons or by certain non-U.S. entities that are wholly or partially owned by United States persons and to withhold on certain payments. Accordingly, the entity through which Notes are held will affect the determination of whether such withholding is required. Similarly, interest in respect of Notes held by an investor that is a “non-financial foreign entity” (as defined in the Code) will be subject to U.S. federal withholding tax at a rate of 30%, unless such entity either (i) certifies to us that such entity does not have any “substantial United States owners” (as defined in the Code) or (ii) provides certain information regarding the entity’s “substantial United States owners” (generally by providing a properly executed IRS Form W-8BEN-E), which the applicable withholding agent will in turn provide to the Secretary of the Treasury. An intergovernmental agreement between the United States and an applicable foreign country, or future guidance, may modify these requirements. Non-U.S. Holders are encouraged to consult with their tax advisors regarding the possible implications of these requirements on their investment in the Notes.

NON-U.S. HOLDERS SHOULD CONSULT ANY APPLICABLE INCOME TAX TREATIES THAT MAY PROVIDE FOR DIFFERENT RULES. IN ADDITION, NON-U.S. HOLDERS ARE URGED TO CONSULT THEIR TAX ADVISORS REGARDING THE TAX CONSEQUENCES OF THE OWNERSHIP AND DISPOSITION OF THE NOTES. THE DISCUSSION SET FORTH HEREIN DOES NOT CONSTITUTE TAX ADVICE, AND POTENTIAL INVESTORS SHOULD CONSULT THEIR OWN TAX ADVISORS CONCERNING THE TAX CONSIDERATIONS RELEVANT TO THEIR PARTICULAR SITUATION.

Subject to the terms and conditions contained in an underwriting agreement, dated as of the date of this prospectus supplement between the Company and the underwriters named below, for whom Morgan Stanley & Co. LLC is acting as representative, the Company has agreed to sell to each underwriter, and each underwriter has severally and not jointly agreed to purchase from the Company, the principal amount of Notes that appears opposite its name in the table below:

The underwriters are offering the Notes subject to their acceptance and receipt of the Notes from the Company, subject to prior sale, and subject to the underwriters’ right to reject any order in whole or in part. The underwriting agreement provides that the obligations of the several underwriters to pay for and accept delivery of the Notes offered by this prospectus supplement are subject to certain conditions, such as the receipt by the underwriters of legal opinions. The underwriters are obligated to take and pay for all of the Notes offered by this prospectus supplement if any such Notes are taken.

Notes sold by the underwriters to the public will initially be offered at the initial public offering price set forth on the cover of this prospectus supplement. Any Notes sold by the underwriters to securities dealers may be sold at a discount from the initial public offering price of up to     % of the principal amount of the Notes. Any such securities dealers may resell any Notes purchased from the underwriters to certain other brokers or dealers at a discount from the initial public offering price of up to     % of the principal amount of the Notes. If all the Notes are not sold at the initial offering price, the underwriters may change the offering price and the other selling terms. The underwriters may offer and sell notes through certain of their affiliates.

The Notes are new issues of securities with no established trading markets. We do not intend to apply for the Notes to be listed on any securities exchange or to arrange for the Notes to be quoted on any quotation system. Certain of the underwriters have advised us that they intend to make markets in the Notes, but they are not obligated to do so. The underwriters may discontinue any market making in the Notes at any time without notice at their sole discretion. Accordingly, we cannot assure you that a liquid trading market will develop for the Notes, that you will be able to sell your Notes at a particular time or that the prices you receive when you sell will be favorable. If the Notes are traded, they may trade at a discount from their initial offering price, depending on prevailing interest rates, the market for similar securities, our operating performance and financial condition, general economic conditions and other factors.

We estimate that our share of the total expenses of the offering, excluding underwriting discounts, will be approximately $     .. We have agreed to indemnify the several underwriters against, or contribute to payments that the underwriters may be required to make in respect of, certain liabilities, including certain liabilities under the Securities Act.

We expect to deliver the Notes against payment for the Notes on     , 2024, which is the   business day following the date of the pricing of the Notes (“T+ ”). Under Rule 15c6-1 promulgated under the Exchange Act, trades in the secondary market generally are required to settle in two business days, unless the parties to any such trade expressly agree otherwise. Accordingly, purchasers who wish to trade the Notes offered hereby prior to the date that is two business days preceding the settlement date will be required, by virtue of the fact that the Notes offered hereby initially will settle in T+  business days, to specify an alternate settlement arrangement at the time of any such trade to prevent a failed settlement.

Subject to certain exceptions, we have agreed not to, directly or indirectly, offer, pledge, sell, contract to sell, grant any option to purchase, make any short sale, or otherwise transfer or dispose of any securities that are substantially similar to the Notes or file any registration statement under the Securities Act relating to such securities until the settlement date of this offering without first obtaining the written consent of the representatives. This consent may be given at any time without public notice.

In connection with the offering of the Notes, the underwriters may purchase and sell Notes in the open market. These transactions may include short sales, stabilizing transactions and purchases to cover positions created by short sales. Short sales involve the sale by the underwriters of a greater number of Notes than they are required to purchase in the offering. Stabilizing transactions consist of certain bids or purchases made for the purpose of preventing or retarding a decline in the market prices of the Notes while the offering is in progress.

These activities by the underwriters, as well as other purchases by the underwriters for their own accounts, may stabilize, maintain or otherwise affect the market prices of the Notes. As a result, the prices of the Notes may be higher than the prices that otherwise might exist in the open market. If these activities are commenced, they may be discontinued by the underwriters at any time without notice. Neither we nor any of the underwriters make any representation or prediction as to the direction or magnitude of any effect that the transactions described above may have on the prices of the Notes. These transactions may be effected in the over-the-counter market or otherwise.

The underwriters and their respective affiliates are full service financial institutions engaged in various activities, which may include sales and trading, commercial and investment banking, advisory, investment management, investment research, principal investment, hedging, market making, brokerage and other financial and non-financial activities and services. Certain of the underwriters and their respective affiliates have provided, and may in the future provide, a variety of these services to us and to persons and entities with relationships with us, for which they received or will receive customary fees and expenses.

Proceeds of this offering may be used to repay outstanding indebtedness, including indebtedness under the SVCP Credit Facility, the TCPC Funding II Facility and/or the BCIC Credit Facility. An affiliate of Morgan Stanley & Co. LLC, is a lender and the administrative agent under the TCPC Funding II Facility and a lender under the BCIC Credit Facility. Accordingly, to the extent any proceeds of this offering are used to repay outstanding indebtedness under the BCIC Credit Facility or the TCPC Funding II Facility, an affiliate of Morgan Stanley & Co. LLC may receive more than 5% of the proceeds of this offering.

In addition, in the ordinary course of their various business activities, the underwriters and their respective affiliates, officers, directors and employees may purchase, sell or hold a broad array of investments and actively traded securities, derivatives, loans, commodities, currencies, credit default swaps and other financial instruments for their own account and for the accounts of their customers, and such investment and trading activities may involve or relate to assets, securities and/or instruments of ours or our affiliates (directly, as collateral securing other obligations or otherwise) and/or persons and entities with relationships with us or our affiliates. Certain of the underwriters or their affiliates that have a lending relationship with us routinely hedge, and certain other underwriters or their affiliates may hedge, their credit exposure to us consistent with their customary risk management policies. Typically, such underwriters and their affiliates would hedge such exposure by entering into transactions which consist of either the purchase of credit default swaps or the creation of short positions in our securities, including potentially the Notes offered hereby. Any such credit default swaps or short positions could adversely affect future trading prices of the Notes offered hereby. The underwriters and their respective affiliates may also communicate independent investment recommendations, market color or trading ideas and/or publish or express independent research views in respect of such assets, securities or instruments and may at any time hold, or recommend to clients that they should acquire, long and/or short positions in such assets, securities and instruments.

The Notes may be sold only to purchasers purchasing, or deemed to be purchasing, as principal that are accredited investors, as defined in National Instrument 45-106 Prospectus Exemptions or subsection 73.3(1) of the Securities Act (Ontario), and are permitted clients, as defined in National Instrument 31-103 Registration Requirements, Exemptions and Ongoing Registrant Obligations. Any resale of the Notes must be made in accordance with an exemption from, or in a transaction not subject to, the prospectus requirements of applicable securities laws.

Securities legislation in certain provinces or territories of Canada may provide a purchaser with remedies for rescission or damages if this prospectus supplement and accompanying prospectus (including any amendment thereto) contain a misrepresentation, provided that the remedies for rescission or damages are exercised by the purchaser within the time limit prescribed by the securities legislation of the purchaser’s province or territory. The purchaser should refer to any applicable provisions of the securities legislation of the purchaser’s province or territory for particulars of these rights or consult with a legal advisor.

Pursuant to section 3A.3 of National Instrument 33-105 Underwriting Conflicts (NI 33-105), the underwriters are not required to comply with the disclosure requirements of NI 33-105 regarding underwriter conflicts of interest in connection with this offering.

This prospectus supplement and the accompanying prospectus relate to an Exempt Offer in accordance with the Offered Securities Rules of the Dubai Financial Services Authority (“DFSA”). This prospectus supplement and the accompanying prospectus are intended for distribution only to persons of a type specified in the Offered Securities Rules of the DFSA. It must not be delivered to, or relied on by, any other person. The DFSA has no responsibility for reviewing or verifying any documents in connection with Exempt Offers. The DFSA has not approved this prospectus supplement or the accompanying prospectus nor taken steps to verify the information set forth herein and has no responsibility for the prospectus. The Notes to which this prospectus supplement and the accompanying prospectus relate may be illiquid and/or subject to restrictions on their resale. Prospective purchasers of the Notes offered should conduct their own due diligence on the Notes. If you do not understand the contents of this prospectus supplement or the accompanying prospectus you should consult an authorized financial advisor.

In relation to its use in the Dubai International Finance Center (“DIFC”), this document is strictly private and confidential and is being distributed to a limited number of investors and must not be provided to any person other than the original recipient, and may not be reproduced or used for any other purpose. The interests in the Notes may not be offered or sold directly or indirectly to the public in the DIFC.

The Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the European Economic Area (the “EEA”). For these purposes, a retail investor means a person who is one (or more) of: (a) a retail client as defined in point (11) of Article 4(1) of Directive 2014/65/EU (as amended, “MiFID II”); (b) a customer within the meaning of Directive (EU) 2016/97 (as amended, the “Insurance Distribution Directive”), where that customer would not qualify as a professional client as defined in point (10) of Article 4(1) of MiFID II; or (c) not a qualified investor as defined in Regulation (EU) 2017/1129 (as amended, the “Prospectus Regulation”). Consequently, no key information document required by Regulation (EU) No 1286/2014 (as amended, the “PRIIPs Regulation”) for offering or selling the Notes or otherwise making them available to retail investors in the EEA has been prepared and therefore offering or selling the Notes or otherwise making them available to any retail investor in the EEA may be unlawful under the PRIIPs Regulation. This prospectus supplement has been prepared on the basis that any offer of Notes in any Member State of the EEA will be made pursuant to an exemption under the Prospectus Regulation from the requirement to publish a prospectus for offers of Notes. This prospectus supplement is not a prospectus for the purposes of the Prospectus Regulation.

The Notes are not intended to be offered, sold or otherwise made available to and should not be offered, sold or otherwise made available to any retail investor in the United Kingdom (the “U.K.”). For these purposes, a retail investor means a person who is one (or more) of (a) a retail client, as defined in point (8) of Article 2 of Regulation (EU) 2017/565 as it forms part of domestic law by virtue of the European Union (Withdrawal) Act 2018 (the “EUWA”); (b) a customer within the meaning of the provisions of the Financial Services and Markets Act 2000 (as amended, the “FSMA”) and any rules or regulations made under the FSMA to implement Directive (EU) 2016/97, where that customer would not qualify as a professional client, as defined in point (8) of Article 2(1) of Regulation (EU) 600/2014 as it forms part of domestic law by virtue of the EUWA; or (c) not a qualified investor as defined in Regulation (EU) 2017/1129 as it forms part of domestic law by virtue of the

EUWA (the “U.K. Prospectus Regulation”). Consequently, no key information document required by Regulation (EU) 1286/2014 as it forms part of domestic law by virtue of the EUWA (the “U.K. PRIIPs Regulation”) for offering or selling the Notes or otherwise making them available to retail investors in the U.K. has been prepared and therefore offering or selling the Notes or otherwise making them available to any retail investor in the U.K. may be unlawful under the U.K. PRIIPs Regulation. This prospectus supplement has been prepared on the basis that any offer of Notes in the U.K. will be made pursuant to an exemption under the U.K. Prospectus Regulation and the FSMA from the requirement to publish a prospectus for offers of Notes. This prospectus supplement is not a prospectus for the purposes of the U.K. Prospectus Regulation or the FSMA.

This prospectus supplement and the accompanying prospectus are not not intended to constitute an offer or solicitation to purchase or invest in the Notes. The Notes may not be publicly offered, directly or indirectly, in Switzerland within the meaning of the Swiss Financial Services Act (“FinSA”) and no application has or will be made to admit the Notes to trading on any trading venue (exchange or multilateral trading facility) in Switzerland. Neither this prospectus supplement, the accompany prospectus nor any other offering or marketing material relating to the Notes constitutes a prospectus pursuant to the FinSA, and neither this prospectus supplement, the accompanying prospectus nor any other offering or marketing material relating to the Notes may be publicly distributed or otherwise made publicly available in Switzerland.

Certain legal matters in connection with the Notes have been passed upon for the Company by Skadden, Arps, Slate, Meagher & Flom LLP, New York, New York and for the underwriters by Kirkland & Ellis LLP, Los Angeles, California and New York, New York.

The financial statements of BlackRock TCP Capital Corp. and subsidiaries as of December 31, 2023 and 2022, and for each of the three years in the period ended December 31, 2023, incorporated by reference in this prospectus supplement, and the effectiveness of BlackRock TCP Capital Corp. and subsidiaries internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their reports. Such financial statements are incorporated by reference in reliance upon the reports of such firm given their authority as experts in accounting and auditing.

The financial statements of BlackRock Capital Investment Corporation and subsidiaries as of December 31, 2023 and 2022, and for each of the three years in the period ended December 31, 2023, incorporated by reference in this prospectus supplement, have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report. Such financial statements are incorporated by reference in reliance upon the report of such firm given their authority as experts in accounting and auditing.

We have filed with the SEC a universal shelf registration statement on Form N-2, together with all amendments and related exhibits, under the Securities Act, with respect to the securities offered by this prospectus supplement and the accompanying prospectus. The registration statement contains additional information about us and the securities being registered by this prospectus supplement and the accompanying prospectus. This prospectus supplement and the accompanying prospectus do not contain all of the information set forth in the registration statement, including any exhibits and schedules it may contain. For further information concerning us or the securities we are offering, please refer to the registration statement. Statements contained in this prospectus supplement and the accompanying prospectus as to the contents of any contract or other document referred to describe the material terms thereof but are not necessarily complete and in each instance reference is made to the copy of any contract or other document filed as an exhibit to the registration statement. Each statement is qualified in all respects by this reference.

We file with or submit to the SEC annual, quarterly and current periodic reports, proxy statements and other information meeting the informational requirements of the Exchange Act. The SEC maintains an Internet website that contains reports, proxy and information statements and other information filed electronically by us with the SEC at http://www.sec.gov.

No dealer, salesperson or other individual has been authorized to give any information or to make any representation other than those contained in this prospectus supplement, the accompanying prospectus and any related free writing prospectus and, if given or made, such information or representations must not be relied upon as having been authorized by us or the underwriters. This prospectus supplement, the accompanying prospectus and any related free writing prospectus do not constitute an offer to sell or a solicitation of an offer to buy any securities in any jurisdiction in which such an offer or solicitation is not authorized or in which the person making such offer or solicitation is not qualified to do so, or to any person to whom it is unlawful to make such offer or solicitation. The information contained in this prospectus supplement, the accompanying prospectus and any related free writing prospectus, as well as information incorporated by reference, is current only as of the date of that information. Our business, financial condition, results of operations and prospects may have changed since that date. Neither the delivery of this prospectus supplement, the accompanying prospectus or any related free writing prospectus nor any sale made hereunder shall, under any circumstances, create any implication that there has been no change in our affairs or that information contained herein is current as of any time subsequent to the date hereof.

We (the “Company”) are an externally managed, closed-end, non-diversified management investment company that has elected to be regulated as a business development company under the Investment Company Act of 1940 (the “1940 Act”). Our investment objective is to achieve high total returns through current income and capital appreciation, with an emphasis on principal protection. We seek to achieve our investment objective primarily through investments in debt securities of middle-market companies, which we typically define as those with enterprise values between $100 million and $1.5 billion. While we intend to primarily focus on privately negotiated investments in debt of middle-market companies, we may make investments of all kinds and at all levels of the capital structure, including in equity interests such as preferred or common stock and warrants or options received in connection with our debt investments. Our investment activities will benefit from what we believe are the competitive advantages of our Advisor, including its diverse in-house skills, proprietary deal flow, and consistent and rigorous investment process focused on established, middle-market companies. We expect to generate returns through a combination of the receipt of contractual interest payments on debt investments and origination and similar fees, and, to a lesser extent, equity appreciation through options, warrants, conversion rights or direct equity investments.

Our common stock, preferred stock, debt securities, subscription rights to purchase our securities or warrants representing rights to purchase our securities (collectively, the “Securities”) may be offered at prices and on terms to be disclosed in one or more supplements to this prospectus. You should read this prospectus and the applicable prospectus supplement carefully before you invest in our Securities.

Neither the SEC nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

This prospectus contains important information you should know before investing in our Securities. Please read it carefully before you invest and keep it for future reference. We file annual, quarterly and current reports, proxy statements and other information about us with the Securities and Exchange Commission (the “SEC”). We maintain a website at http://www.tcpcapital.com and we make all of our annual, quarterly and current reports, proxy statements and other publicly filed information available, free of charge, on or through this website. You may also obtain free copies of our annual and quarterly reports and make stockholder inquiries by contacting us at Tennenbaum Capital Partners, LLC, c/o Investor Relations, 2951 28^th Street, Suite 1000, Santa Monica, California 90405 or by calling us collect at (310) 566-1094. The SEC maintains a website at http://www.sec.gov where such information is available without charge upon request. Information contained on our website is not incorporated by reference into this prospectus, and you should not consider information contained on our website to be part of this prospectus.

The debt securities in which we typically invest are either rated below investment grade by independent rating agencies or would be rated below investment grade if such securities were rated by rating agencies. Below investment grade securities, which are often referred to as “hybrid securities,” “junk bonds” or “leveraged loans” are regarded as having predominantly speculative characteristics with respect to the issuer’s capacity to pay interest and repay principal. They may be illiquid and difficult to value and typically do not require repayment of principal prior to maturity, which potentially heightens the risk that we may lose all or part of our investment. In addition, a substantial majority of the Company’s debt investments include interest reset provisions that may make it more difficult for the borrowers to make debt repayments to the Company if the reset provision has the effect of increasing the applicable interest rate.

Shares of closed-end investment companies, including business development companies, frequently trade at a discount from their net asset value. If our shares trade at a discount to our net asset value, it will likely increase the risk of loss for purchasers in the offerings. Investing in our securities involves a high degree of risk, including credit risk and the risk of the use of leverage. Before buying any securities, you should read the discussion of the material risks of investing in our securities in “Risks” beginning on page 9 of this prospectus.

This prospectus may not be used to consummate sales of shares of our securities unless accompanied by a prospectus supplement.

Our Securities may be offered directly to one or more purchasers, or through agents designated from time to time by us, or to or through underwriters or dealers. The prospectus supplement relating to the offering will identify any agents, underwriters or dealers involved in the sale of our Securities, and will disclose any applicable purchase price, fee, commission or discount arrangement between us and our agents, underwriters or dealers, or the basis upon which such amount may be calculated. We may not sell any of our Securities through agents, underwriters or dealers without delivery of the prospectus and a prospectus supplement describing the method and terms of the offering of such Securities. Our common stock is traded on The NASDAQ Global Select Market under the symbol “TCPC.” As of September 22, 2022, the last reported sales price for our common stock was $12.14. Our net asset value per share of our common stock at June 30, 2022 was $13.97.

Tennenbaum Capital Partners, LLC (the “Advisor”) serves as our investment advisor. Our Advisor is a wholly-owned, indirect subsidiary of BlackRock, Inc. (together with its subsidiaries, “BlackRock”). BlackRock is a leading publicly traded investment management firm (NYSE:BLK), with approximately $8.5 trillion of assets under management as of June 30, 2022. Series H of SVOF/MM, LLC, an affiliate of our Advisor, provides the administrative services necessary for us to operate.

We may offer shares of common stock, subscription rights, warrants, options or rights to acquire shares of common stock, at a discount to net asset value per share in certain circumstances. Sales of common stock at prices below net asset value per share dilute the interests of existing stockholders, have the effect of reducing our net asset value per share and may reduce our market price per share. At our 2022 annual meeting, held on May 24, 2022, subject to the condition that the maximum number of shares salable below net asset value pursuant to this authority in any particular offering that could result in such dilution is limited to 25% of our then outstanding common stock immediately prior to each such offering, our stockholders approved our ability to sell or otherwise issue shares of our common stock at any level of discount from net asset value per share for a twelve month period expiring on the anniversary of the date of stockholder approval. We intend to seek stockholder approval at our 2023 annual meeting to continue for an additional year our ability to issue shares of common stock below net asset value, subject to the condition that the maximum number of shares salable below net asset value pursuant to this authority in any particular offering that could result in such dilution is limited to 25% of our then outstanding common stock immediately prior to each such offering.

Statistical and market data used in this prospectus has been obtained from governmental and independent industry sources and publications. We have not independently verified the data obtained from these sources. Forward-looking information obtained from these sources is subject to the same qualifications and the additional uncertainties regarding the other forward-looking statements contained in this prospectus, for which the safe harbor provided in Section 27A of the Securities Act and Section 21E of the Securities Exchange Act of 1934 is not available.

You should rely only on the information contained, or incorporated by reference, in this prospectus and any accompanying prospectus supplement. We have not, and the underwriters have not, authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not, and no underwriters are, making offers to sell these securities in any jurisdiction where such offer or sale is not permitted. You should assume that the information in this prospectus is accurate only as of the date on the front of this prospectus and the information in any accompanying prospectus supplement is accurate only as of the date on the front of the accompanying prospectus supplement. Our business, financial condition and prospects may have changed since that date. To the extent required by applicable law, we will update this prospectus during the offering period to reflect material changes to the disclosure herein. See also “Incorporation by Reference” and “Additional Information.”

This prospectus is part of a registration statement that we have filed with the SEC. We are allowed to “incorporate by reference” the information that we file with the SEC, which means that we can disclose important information to you by referring you to those documents. We incorporate by reference into this prospectus the documents listed below and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, including any filings on or after the date of this prospectus from the date of filings (excluding any information furnished, rather than filed), until we have sold all of the offered securities to which this prospectus and any accompanying prospectus supplement relates or the offering is otherwise terminated. The information incorporated by reference is an important part of this prospectus. Any statement in a document incorporated by reference into this prospectus will be deemed to be automatically modified or superseded to the extent a statement contained in (1) this prospectus or (2) any other subsequently filed document that is incorporated by reference into this prospectus modifies or supersedes such statement. The documents incorporated by reference herein include:

To obtain copies of these filings, see “Additional Information.” We will also provide without charge to each person, including any beneficial owner, to whom this prospectus is delivered, upon written or oral request, a copy of any and all of the documents that have been or may be incorporated by reference in this prospectus. You should direct requests for documents by writing to:

This prospectus is also available on our website at http://www.tcpcapital.com. Information contained on our website is not incorporated by reference into this prospectus and should not be considered to be part of this prospectus.

This prospectus is part of a registration statement that we have filed with the SEC, using the “shelf” registration process as a “well-known seasoned issuer,” as defined in Rule 405 under the Securities Act. Under the shelf registration process, we may offer, from time to time on a delayed basis over a three year period, shares of our common stock, shares of our preferred stock, debt securities, subscription rights to purchase shares of our securities or warrants representing rights to purchase our securities. The Securities may be offered at prices and on terms described in one or more supplements to this prospectus. This prospectus provides you with a general description of the Securities that we may offer. Each time we use this prospectus to offer Securities, we will provide an accompanying prospectus supplement that will contain specific information about the terms of that offering. This prospectus and any accompanying prospectus supplement will together constitute the prospectus for an offering of our Securities. The accompanying prospectus supplement may also add, update or change information contained in this prospectus. Please carefully read this prospectus and any accompanying prospectus supplement together with any exhibits and the additional information described under the headings “Incorporation by Reference” and “Additional Information” and the section under the heading “Risks” before you make an investment decision. You should rely only on the information contained, or incorporated by reference, collectively, in this prospectus and any accompanying prospectus supplement.

In addition to factors previously identified elsewhere in this prospectus, including the “Risks” section of this prospectus, the following factors, among others, could cause actual results to differ materially from forward-looking statements or historical performance:

This prospectus contains, and other statements that we may make may contain, forward-looking statements with respect to future financial or business performance, strategies or expectations. Forward-looking statements are typically identified by words or phrases such as “trend,” “opportunity,” “pipeline,” “believe,” “comfortable,” “expect,” “anticipate,” “current,” “intention,” “estimate,” “position,” “assume,” “potential,” “outlook,” “continue,” “remain,” “maintain,” “sustain,” “seek,” “achieve” and similar expressions, or future or conditional verbs such as “will,” “would,” “should,” “could,” “may” or similar expressions.

Forward-looking statements are subject to numerous assumptions, risks and uncertainties, which change over time. Forward-looking statements speak only as of the date they are made, and we assume no duty to and do not undertake to update forward-looking statements. These forward-looking statements do not meet the safe harbor for forward-looking statements pursuant to Section 27A of the Securities Act or Section 21E of the Exchange Act. Actual results could differ materially from those anticipated in forward-looking statements and future results could differ materially from historical performance.

Unless otherwise specified in a prospectus supplement, we intend to use the net proceeds from any offering to repay amounts outstanding under the SVCP Credit Facility and TCPC Funding Facility II, if any, (which will increase the funds under the SVCP Credit Facility and TCPC Funding Facility II available to us to make additional investments in portfolio companies) and to make investments in portfolio companies in accordance with our investment objective and for other general corporate purposes, including payment of operating expenses. We anticipate that substantially all of such remainder of the net proceeds of an offering will be invested in accordance with our investment objective within six to twelve months following completion of such offering, depending on the availability of appropriate investment opportunities consistent with our investment objective and market conditions. We cannot assure you that we will achieve our targeted investment pace.

As of September 21, 2022, we had $161.4 million outstanding under the SVCP Credit Facility, with advances generally bearing interest LIBOR plus 1.75% or 2.00% per annum, depending on a ratio of the borrowing base to the facility commitments. The SVCP Credit Facility matures May 6, 2026, subject to extension by the lenders at our request.

As of September 21, 2022, we had $107 million outstanding under the TCPC Funding Facility II, with advances generally bearing interest at LIBOR plus 2.00% per annum, subject to certain limitations. The TCPC Funding Facility II matures on August 4, 2025, subject to extension by the lender at our request.

Pending investments in portfolio companies by the Company, the Company will invest the remaining net proceeds of an offering primarily in cash, cash equivalents, U.S. Government securities and other high-quality debt investments that mature in one year or less. These securities may have lower yields than our other investments and accordingly may result in lower distributions, if any, during such period.

Our primary competitors to provide financing to middle-market companies include public and private funds, commercial and investment banks, commercial finance companies and private equity and hedge funds. Many of our competitors are substantially larger and have considerably greater financial and marketing resources than we do. For example, some competitors may have access to funding sources that are not available to us. In addition, some of our competitors may have higher risk tolerances or different risk assessments, which could allow them to consider a wider variety of investments and establish more relationships than us. Furthermore, many of our competitors are not subject to the regulatory restrictions that the 1940 Act imposes on us as a BDC or to the distribution and other requirements we must satisfy to maintain our favorable RIC tax status.

We do not own any real estate or other physical properties materially important to our operation. Our headquarters are currently located at 2951 28th Street, Suite 1000, Santa Monica, CA 90405. The Advisor furnishes us office space and we reimburse it for such costs on an allocated basis.

From time to time, in the normal course of business, we and the Advisor are party to certain lawsuits. Furthermore, third parties may try to seek to impose liability on us in connection with the activities of our portfolio companies. While the outcome of any such open legal proceedings cannot at this time be predicted with certainty, we do not expect these matters will have a material adverse impact on the financial condition or results of operations of the Company or our Advisor.

We intend to make distributions on a quarterly basis to our stockholders out of assets legally available for distribution. The timing and amount of our quarterly distributions, if any, are determined by our board of directors. Any distributions to our stockholders are declared out of assets legally available for distribution. We intend to pay quarterly distributions to our stockholders in an amount, and on a timely basis, sufficient to maintain our status as a RIC. There can be no assurances that the Company will have sufficient funds to pay distributions to our stockholders in the future to maintain our status as a RIC.

We are a RIC under the Code. To continue to obtain RIC tax benefits, we generally must distribute at least 90% of our ordinary income and net short-term capital gain in excess of net long-term capital loss, if any, out of the assets legally available for distribution. In order to avoid certain excise taxes imposed on RICs, we currently intend to distribute during each calendar year an amount at least equal to the sum of (1) 98% of our ordinary income (not taking into account any capital gains or losses) for the calendar year, (2) 98.2% of the amount by which our capital gains exceed our capital losses (adjusted for certain ordinary losses) for the one-year period generally ending on October 31 of the calendar year and (3) certain undistributed amounts from previous years on which we paid no U.S. federal income tax. In addition, although we currently intend to distribute net capital gain (i.e., net long-term capital gain in excess of net short-term capital loss), if any, at least annually, out of the assets legally available for such distributions, we may in the future decide to retain such capital gain for investment. In such event, the consequences of our retention of net capital gain are as described under “U.S. Federal Income Tax Matters.” We can offer no assurance that the Company will achieve results that will permit the payment of any cash distributions to our stockholders. In addition, the Leverage Program prohibits us from making distributions if doing so would cause us to fail to maintain the asset coverage ratios stipulated by the 1940 Act or the Leverage Program. See “Risks,” “U.S. Federal Income Tax Matters” and “Senior Securities” in the prospectus.

Our Advisor and we believe that, in certain circumstances, it may be in our best interests to be able to co-invest with registered funds, unregistered funds and business development companies managed now or in the future by our Advisor and its affiliates in order to be able to participate in a wider range of transactions.

Currently, SEC regulations and interpretations would permit us to co-invest with registered and unregistered funds that are affiliated with our Advisor in publicly traded securities and also in private placements where (i) our Advisor negotiates only the price, interest rate and similar price-related terms of the securities and not matters such as covenants, collateral or management rights and (ii) each relevant account acquires and sells the securities at the same time in pro rata amounts (subject to exceptions approved by compliance personnel after considering the reasons for the requested exception). Such regulations and interpretations also permit us to co-invest in other private placements with registered investment funds affiliated with our Advisor in certain circumstances, some of which would require certain findings by our independent directors and the independent directors of each other eligible registered fund. However, current SEC regulations and interpretations would not permit co-investment by us with unregistered funds affiliated with our Advisor in private placements where our Advisor negotiates non-pricing terms such as covenants, collateral and management rights. Accordingly, under current SEC regulations, in the absence of an exemption we may be prohibited from co-investing in certain private placements with any unregistered fund or account managed now or in the future by our Advisor or its affiliates.

Our Advisor and various funds managed by our Advisor have received an exemption from such regulations. Under the SEC order granting such exemption, each time our Advisor proposes that an unregistered fund, business development company or registered fund acquire private placement securities that are suitable for us, our Advisor will prepare a recommendation as to the proportion to be allocated to us taking into account a variety of factors such as the investment objectives, size of transaction, investable assets, alternative investments potentially available, prior allocations, liquidity, maturity, expected holding period, diversification, lender covenants and other limitations. Our independent directors will review the proposed transaction and may authorize co-investment by us of up to our pro rata amount of such securities based on our total available capital if a majority of them conclude that: (i) the transaction is consistent with our investment objective and policies; (ii) the terms of co-investment are fair to us and our stockholders and do not involve overreaching; and (iii) participation by us would not disadvantage us or be on a basis different from or less advantageous than that of the participating unregistered accounts and other registered funds. If our Advisor determines that we should not participate in the co-investment opportunity that would otherwise be suitable in light of our investment objective, this determination must also be submitted to the independent directors for their approval. The directors may also approve a lower amount or determine that we should not invest. The directors may also approve a higher amount to the extent that other accounts managed by our Advisor decline to participate. In addition, private placement follow-on investments and disposition opportunities must be made available in the same manner on a pro rata basis and no co-investment (other than permitted follow-on investments) is permitted where we, on the one hand, or any other account advised by our Advisor or an affiliate, on the other hand, already hold securities of the issuer.

Our Advisor and its affiliates may spend substantial time on other business activities, including investment management and advisory activities for entities with the same or overlapping investment objectives, investing for their own account with us or any investor us, financial advisory services (including services for entities in which we invest), and acting as directors, officers, creditor committee members or in similar capacities. Subject to the requirements of the 1940 Act, our Advisor and its affiliates and associates intend to engage in such activities and may receive compensation from third parties for their services. Subject to the same requirements, such compensation may be payable by entities in which we invest in connection with actual or contemplated investments, and our Advisor may receive fees and other compensation in connection with structuring investments which they will share.

Our Advisor and its partners, officers, directors, stockholders, members, managers, employees, affiliates and agents may be subject to certain potential or actual conflicts of interest in connection with the activities of, and investments by, us. Affiliates and employees of our Advisor are equity investors in us.

We may engage in “commodity interest” transactions (generally, transactions in futures, certain options, certain currency transactions and certain types of swaps) only for bona fide hedging, yield enhancement and risk management purposes, in each case in accordance with the rules and regulations of the Commodity Futures Trading Commission (“CFTC”). With respect to the Company, our Advisor relies on an exclusion from the definition of “commodity pool operator” pursuant to CFTC Rule 4.5 which imposes certain commodity interest trading restrictions on the Company. These trading restrictions permit the Company to engage in commodity

interest transactions that include (i) “bona fide hedging” transactions, as that term is defined and interpreted by the CFTC and its staff, without regard to the percentage of the Company’s assets committed to margin and option premiums and (ii) non-bona fide hedging transactions, provided that the Company does not enter into such non-bona fide hedging transactions if, immediately thereafter, (a) the sum of the amount of initial margin and premiums required to establish the Company’s commodity interest positions would exceed 5% of the Company’s liquidation value, after taking into account unrealized profits and unrealized losses on any such transactions, and (b) the aggregate net notional value of the Company’s commodity interest positions would exceed 100% of the Company’s liquidation value, after taking into account unrealized profits and unrealized losses on any such positions. In addition to meeting one of the foregoing trading limitations, interests in the Company may not be marketed as or in a commodity pool or otherwise as a vehicle for trading in the futures, options or swaps markets. If our Advisor was required to register as a commodity pool operator with respect to the Company, compliance with additional registration and regulatory requirements would increase the Company expenses. Other potentially adverse regulatory initiatives could also develop.

We may also be prohibited under the 1940 Act from knowingly participating in certain transactions with our affiliates without the prior approval of our board of directors who are not interested persons and, in some cases, prior approval by the SEC.

We are subject to periodic examination by the SEC for compliance with the 1940 Act.

We are required to provide and maintain a bond issued by a reputable fidelity insurance company to protect us against larceny and embezzlement. Furthermore, as a BDC, we are prohibited from protecting any director or officer against any liability to us or our stockholders arising from willful misfeasance, bad faith, gross negligence or reckless disregard of the duties involved in the conduct of such person’s office.

Subject to the supervision of the board of directors, decisions to buy and sell securities and bank debt for the Company and decisions regarding brokerage commission rates are made by our Advisor. Transactions on stock exchanges involve the payment by the Company of brokerage commissions. In certain instances the Company may make purchases of underwritten issues at prices which include underwriting fees.

In selecting a broker to execute each particular transaction, our Advisor will take the following into consideration: the best net price available; the reliability, integrity and financial condition of the broker; the size and difficulty in executing the order, and the value of the expected contribution of the broker to the investment performance of the Company on a continuing basis. Accordingly, the cost of the brokerage commissions to the Company in any transaction may be greater than that available from other brokers if the difference is reasonably justified by other aspects of the portfolio execution services offered. The aggregate amount of brokerage commission paid by the Company over the previous three fiscal years was $0.0 million. The extent to which our Advisor makes use of statistical, research and other services furnished by brokers may be considered by our Advisor in the allocation of brokerage business, but there is not a formula by which such business is allocated. Our Advisor does so in accordance with its judgment of the best interests of the Company and its stockholders.

One or more of the other investment funds or accounts which our Advisor manages may own from time to time some of the same investments as the Company. When two or more companies or accounts seek to purchase or sell the same securities, the securities actually purchased or sold and any transaction costs will be allocated among the companies and accounts on a good faith equitable basis by our Advisor in its discretion in accordance with the accounts’ various investment objectives, subject to the allocation procedures adopted by the board of directors related to privately placed securities (including an implementation of any co-investment exemptive relief obtained by the Company and our Advisor). In some cases, this system may adversely affect the price or size of the position obtainable for the Company. In other cases, however, the ability of the Company to participate in volume transactions may produce better execution for the Company. It is the opinion of the board of directors that this advantage, when combined with the other benefits available due to our Advisor’s organization, outweighs any disadvantages that may be said to exist from exposure to simultaneous transactions.

The following is a listing of each portfolio company investment, together referred to as our investment portfolio, at June 30, 2022. Percentages shown for class of securities held by us represent percentage of the class owned and do not necessarily represent voting ownership or economic ownership. Percentages shown for equity securities other than warrants or options represent the actual percentage of the class of security held before dilution. Percentages shown for warrants and options held represent the percentage of class of security we may own on a fully diluted basis assuming we exercise our warrants or options. Each variable rate debt investment that is determined by a reference to LIBOR resets either monthly, quarterly, semi-annually or annually.

On July 28, 2022, our board of directors approved the valuation of our investment portfolio at fair value as determined in good faith using a consistently applied valuation process in accordance with our documented valuation policy that has been reviewed and approved by our board of directors, who also approve in good faith the valuation of such securities as of the end of each quarter. For more information relating to our investments, see our schedules of investments included in our financial statements incorporated by reference in this prospectus.