Sec Form 4 Filing - ARG Private Equity, LLC @ StepStone Group Inc. - 2021-11-18

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

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person ARG Private Equity, LLC 2. Issuer Name and Ticker or Trading Symbol StepStone Group Inc. [ STEP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 6733 S. YALE AVE., 3. Date of Earliest Transaction (MM/DD/YY) 11/18/2021 (Street) TULSA, OK74136 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 11/18/2021 D( 1 ) 1,330,336 D $ 0.001 3,662,708 D( 2 )( 3 ) Class A Common Stock 11/18/2021 C( 1 ) 1,330,336 A 1,382,836 D( 2 )( 3 ) Class A Common Stock 11/18/2021 S( 5 ) 1,330,336 D $ 51.83 52,500 D( 2 )( 3 )

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 B Units ( 4 ) 11/18/2021 C( 1 ) 1,330,336 ( 4 ) ( 4 ) Class A Common Stock 1,330,336 ( 4 ) 3,662,708 D( 2 )( 3 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other ARG Private Equity, LLC 6733 S. YALE AVE. TULSA, OK74136 X ARGO Holdings, LLC 6733 S. YALE AVE. TULSA, OK74136 X KAISER GEORGE B C/O FREDERIC DORWART, LAWYERS PLLC 124 EAST FOURTH STREET TULSA, OK74103 X Mitchell Steven R C/O ASPEN AEROGELS, INC. 30 FORBES ROAD, BUILDING B NORTHBOROUGH, MA01532 X X Waldo Robert 6733 S. YALE AVE. TULSA,, OK74136 X Signatures ARG Private Equity, LLC; By /s/ Frederic Dorwart, Manager 11/19/2021 Signature of Reporting Person Date ARGO Holdings, LLC; By ARG Private Equity, LLC, Manager; By /s/ Frederic Dorwart, Manager 11/19/2021 Signature of Reporting Person Date /s/ Frederic Dorwart, Attorney-in-fact for George B. Kaiser 11/19/2021 Signature of Reporting Person Date /s/ Steven R. Mitchell 11/19/2021 Signature of Reporting Person Date /s/ Robert A. Waldo 11/19/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On November 18, 2021, the Reporting Person exchanged 1,330,336 Class B Units of StepStone Group LP for 1,330,336 shares of Class A Common Stock. In connection with the exchange, 1,330,336 shares of Class B Common Stock were automatically redeemed and cancelled. ( 2 )27,500 of the Class A Common Stock securities are held of record by Steven R. Mitchell. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Robert A. Waldo disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein. 25,000 of the Class A Common Stock securities are held of record by Robert A. Waldo. Each of ARG Private Equity, LLC, ARGO Holdings, LLC, George Kaiser and Steven R. Mitchell disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein. ( 3 )The remaining securities are held of record by ARGO Holdings, LLC. ARGO Holdings, LLC is managed by ARG Private Equity, LLC Steven R. Mitchell has a derivative interest in ARG Private Equity, LLC. Robert A. Waldo is a manager and Vice President of ARG Private Equity, LLC and has a derivative interest therein. George B. Kaiser is the sole member of ARG Private Equity, LLC. Each of Steven R. Mitchell, Robert A. Waldo and George B. Kaiser disclaims beneficial ownership of the securities reported herein for purposes of Rule 16a-1(a) under the Securities and Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any. ( 4 )The Class B Units are exchangeable, on a one-for-one basis, for shares of Class A Common Stock of the Issuer. Upon exchange of a Class B Unit, the corresponding share of Class B Common Stock of the Issuer will be automatically redeemed and cancelled. ( 5 )On November 18, 2021, the Reporting Person sold shares of Class A Common Stock in a secondary offering of Class A Common Stock by certain selling stockholders of the Issuer.

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).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.