STEP StepStone Group Inc

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

Under the Securities Exchange Act of 1934

(Amendment No. 18)*

StepStone Group Inc.

(Name of Issuer)

Class A Common Stock, Par Value $0.001 Per Share

(Title of Class of Securities)

85914M107

(CUSIP Number)

Jennifer Y. Ishiguro

Chief Legal Officer & Secretary

StepStone Group Inc.

277 Park Avenue, 45th Floor

New York, NY 10172

Telephone: (212) 351-6100

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

December 3, 2024

(Date of Event Which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box: ☐

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Rule 240.13d-7 for other parties to whom copies are to be sent.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

SCHEDULE 13D

CUSIP No. 85914M107

SCHEDULE 13D

CUSIP No. 85914M107

SCHEDULE 13D

CUSIP No. 85914M107

SCHEDULE 13D

CUSIP No. 85914M107

SCHEDULE 13D

CUSIP No. 85914M107

SCHEDULE 13D

CUSIP No. 85914M107

SCHEDULE 13D

CUSIP No. 85914M107

Item 1. Security and Issuer

This statement on Schedule 13D (this “Statement”) relates to the Reporting Persons’ (as defined in Item 2 below) beneficial ownership interest in the Class A common stock, par value $0.001 per share (the “Class A Common Stock”), of StepStone Group Inc., a Delaware corporation (the “Issuer”). The address of the principal executive offices of the Issuer is 277 Park Avenue, 45th Floor, New York, NY 10172.

This amendment (the “Amendment”) amends the prior statement on Schedule 13D filed by the Reporting Persons with the Securities and Exchange Commission on September 21, 2020, as amended on March 25, 2021, September 29, 2021, October 28, 2021, November 4, 2021, November 26, 2021, October 20, 2022, November 18, 2022, March 10, 2023, January 10, 2024, February 9, 2024, February 14, 2024, February 27, 2024, April 9, 2024, April 22, 2024, May 1, 2024, August 21, 2024 and September 13, 2024 (the “Original Filing” and, as amended by this Amendment, the “Schedule 13D”). Capitalized terms used but not otherwise defined herein shall have the meanings ascribed to them in the Original Filing.

Item 2. Identity and Background

Item 2 of the Schedule 13D is hereby amended and supplemented as follows:

This Statement is being filed jointly by Monte M. Brem, Scott W. Hart, Jason P. Ment, Jose A. Fernandez, Michael I. McCabe and Thomas Keck. The foregoing persons are referred to collectively as the “Reporting Persons.” Each of the Reporting Persons is filing in his capacity as a member of the Class B Committee. In addition, Messrs. Brem, Hart, Fernandez, McCabe and Keck are filing as the direct owners of more than 5% of the Class B units (the “Class B Units”) of StepStone Group LP (the “Partnership”).

The Reporting Persons constitute the current members of the Class B Committee. As described more fully below, pursuant to the Stockholders Agreement, the members of the Class B Committee have the right to direct the voting of certain shares of Class A Common Stock and Class B common stock, par value $0.001 per share (the “Class B Common Stock”), of the Issuer. As a result, the Reporting Persons may be deemed to have beneficial ownership over 43,611,655 shares of voting stock held by stockholders party to the Stockholders Agreement.

As of the date of this filing, the members of the Class B Committee collectively beneficially own, directly or indirectly, approximately 34.0% of the aggregate voting power of the Class A Common Stock and Class B Common Stock, and the parties to the Stockholders Agreement (inclusive of the Class B Committee) collectively hold, directly or indirectly, approximately 62.9% of the aggregate voting power of the Class A Common Stock and Class B Common Stock. As a result of the arrangement set forth in the Stockholders Agreement, the Class B Committee is expected to control the outcome of matters submitted to the Issuer’s stockholders until a Sunset has occurred.

(a) As of the date of this Statement:

Each Reporting Person disclaims beneficial ownership of securities owned by the other Reporting Persons.

Item 4. Purpose of Transaction

Item 4 of the Schedule 13D is hereby amended and supplemented as follows:

In November 2024, certain of the Reporting Persons entered into 10b5-1 Plans with Morgan Stanley Smith Barney LLC, which provide for the sale of up to 177,308 shares of Class A Common Stock.

All sales of shares of Class A Common Stock under the 10b5-1 Plans are subject to certain minimum price conditions.

Item 5. Interest in Securities of the Issuer

(a) and (b) Items 5(a) and 5(b) of Schedule 13D are amended to reflect the following:

The following table sets forth the aggregate number and percentage of the Class A Common Stock beneficially owned by each Reporting Person. The aggregate number and percentage of the Class A Common Stock beneficially owned by each Reporting Person is calculated in accordance with Rule 13d-3, but excluding any shares beneficial owned solely by virtue of the Stockholders Agreement.

Each of the Reporting Persons may be deemed to have beneficial ownership over 43,611,655 shares of voting stock held by Class A stockholders, Class B stockholders and Class C unitholders party to the Stockholders Agreement (inclusive of the shares listed in the table), representing 39.6% of Class A Common Stock outstanding (assuming that the 33,004,103 Class B Units and the 965,761 Class C Units subject to the Stockholders Agreement and eligible to be exchanged are exchanged), which have been omitted from the table below.

(c) Item 5(c) of Schedule 13D is hereby amended and supplemented as follows:

Other than the transactions described below and disclosed in the Original Filing, the Reporting Persons have not effected any transactions involving the beneficial ownership of Class A Common Stock during the 60 days prior to the date of this Statement. With respect to the sale transactions reported below, each day’s sales comprised open market transactions made on that day, and the price per share reported is the weighted average sale price. The Reporting Persons hereby undertake to provide upon request to the SEC staff, the Issuer, or a security holder of the Issuer full information regarding the number of Common Stock and prices at which the trades were effected.

On December 2, 2024, Mr. Hart exchanged 180,000 Class B Units in the Partnership owned by a family trust and Mr. McCabe exchanged 500,000 Class B Units in the Partnership owned directly, and 250,000 Class B Units in the Partnership owned by a family trust, in each case, for an equivalent number of shares of Class A Common Stock.

Mr. Hart sold: 19,291 shares of Class A Common Stock at $63.11 per share on December 3, 2024; 2,700 shares of Class A Common Stock at $64.15 per share on December 3, 2024; 100 shares of Class A Common Stock at $64.85 per share on December 3, 2024; 37,509 shares of Class A Common Stock at $62.80; per share on December 4, 2024; and 400 shares of Class A Common Stock at $63.48 per share on December 4, 2024. In each case the shares sold by Mr. Hart were owned by a family trust.

Mr. McCabe sold: 2,200 shares of Class A Common Stock owned by a family trust at $64.34 per share on December 3, 2024; and 4,000 shares of Class A Common Stock owned directly at $64.25 per share on December 3, 2024.

Item 7. Material to be Filed as Exhibits

SIGNATURES

After reasonable inquiry and to the best of each of the undersigned’s knowledge and belief, each of the undersigned, severally and not jointly, certifies that the information set forth in this statement is true, complete and correct.

Dated: December 5, 2024