Sec Form 4 Filing - Hart Scott W @ StepStone Group Inc. - 2024-06-01

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Hart Scott W 2. Issuer Name and Ticker or Trading Symbol StepStone Group Inc. [ STEP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) X __ Other (specify below) Chief Executive Officer/See remarks (Last) (First) (Middle) C/O STEPSTONE GROUP INC., 277 PARK AVENUE, 45TH FLOOR 3. Date of Earliest Transaction (MM/DD/YY) 06/01/2024 (Street) NEW YORK, NY10172 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class B Common Stock 06/01/2024 A 297,270 ( 1 ) A $ 0.001 ( 1 ) 3,338,561 I By Trust Class A Common Stock 06/03/2024 G 13,380 D $ 0 42,498 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Class B2 Units ( 2 ) 06/01/2024 C 297,270 ( 2 ) ( 2 ) Class A Common Stock 297,270 ( 2 ) 0 I By Trust Class B Units ( 3 ) 06/01/2024 C 297,270 ( 3 ) ( 3 ) Class A Common Stock 297,270 ( 2 ) 3,338,561 I By Trust

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Hart Scott W C/O STEPSTONE GROUP INC. 277 PARK AVENUE, 45TH FLOOR NEW YORK, NY10172 X Chief Executive Officer See remarks Signatures /s/ Jennifer Ishiguro, Attorney-in-fact for Scott W. Hart 06/04/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Per the Issuer's Amended and Restated Certificate of Incorporation, upon vesting of the Class B2 Units of the Partnership into Class B Units of the Partnership, the Issuer shall issue a number of shares of Class B Common Stock registered in the name of the applicable holder equal to the number of Class B Units issued upon such vesting event, in exchange for payment in cash to the Issuer of the aggregate par value of the shares of Class B Common Stock so issued. ( 2 )The Class B2 Units vested 30% on June 1, 2021 and 5.83% on each quarterly anniversary thereafter, contingent upon the Reporting Person's continued service to the Issuer. Upon the final vesting date of the Class B2 Units on June 1, 2024, they automatically converted into Class B Units. ( 3 )Pursuant to an Exchange Agreement, the Class B Units of the Partnership are exchangeable, on a one-for-one basis, for shares of Class A Common Stock. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock will be automatically redeemed and cancelled.

Remarks: Member of 13D group that owns more than 10%

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

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