<SEC-DOCUMENT>0001453622-21-000003.txt : 20210325
<SEC-HEADER>0001453622-21-000003.hdr.sgml : 20210325
<ACCEPTANCE-DATETIME>20210325185815
ACCESSION NUMBER:		0001453622-21-000003
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210323
FILED AS OF DATE:		20210325
DATE AS OF CHANGE:		20210325

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KAISER GEORGE B
		CENTRAL INDEX KEY:			0001163432

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39510
		FILM NUMBER:		21773995

	MAIL ADDRESS:	
		STREET 1:		C/O FREDERIC DORWART, LAWYERS
		STREET 2:		124 EAST FOURTH STREET
		CITY:			TULSA
		STATE:			OK
		ZIP:			74103

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Argonaut Holdings, L.L.C.
		CENTRAL INDEX KEY:			0001394221
		STATE OF INCORPORATION:			OK
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39510
		FILM NUMBER:		21773996

	BUSINESS ADDRESS:	
		STREET 1:		6733 S. YALE AVE.
		CITY:			TULSA
		STATE:			OK
		ZIP:			74136
		BUSINESS PHONE:		(918) 494-0000

	MAIL ADDRESS:	
		STREET 1:		6733 S. YALE AVE.
		CITY:			TULSA
		STATE:			OK
		ZIP:			74136

	FORMER NAME:	
		FORMER CONFORMED NAME:	Argonaut Holdings LLC
		DATE OF NAME CHANGE:	20070323

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ARG Private Equity, LLC
		CENTRAL INDEX KEY:			0001585937

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39510
		FILM NUMBER:		21773997

	BUSINESS ADDRESS:	
		STREET 1:		6733 S. YALE AVE.
		CITY:			TULSA
		STATE:			OK
		ZIP:			74136
		BUSINESS PHONE:		918-494-0000

	MAIL ADDRESS:	
		STREET 1:		6733 S. YALE AVE.
		CITY:			TULSA
		STATE:			OK
		ZIP:			74136

	FORMER NAME:	
		FORMER CONFORMED NAME:	Argonaut Private Equity, L.L.C.
		DATE OF NAME CHANGE:	20130905

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mitchell Steven R
		CENTRAL INDEX KEY:			0001610279

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39510
		FILM NUMBER:		21773994

	MAIL ADDRESS:	
		STREET 1:		C/O ASPEN AEROGELS, INC.
		STREET 2:		30 FORBES ROAD, BUILDING B
		CITY:			NORTHBOROUGH
		STATE:			MA
		ZIP:			01532

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Waldo Robert
		CENTRAL INDEX KEY:			0001728668

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39510
		FILM NUMBER:		21773993

	MAIL ADDRESS:	
		STREET 1:		6733 S. YALE AVE.
		CITY:			TULSA,
		STATE:			OK
		ZIP:			74136

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			StepStone Group Inc.
		CENTRAL INDEX KEY:			0001796022
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		IRS NUMBER:				843868757
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		450 LEXINGTON AVENUE
		STREET 2:		31ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
		BUSINESS PHONE:		1-212-351-6100

	MAIL ADDRESS:	
		STREET 1:		450 LEXINGTON AVENUE
		STREET 2:		31ST FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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    <periodOfReport>2021-03-23</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001796022</issuerCik>
        <issuerName>StepStone Group Inc.</issuerName>
        <issuerTradingSymbol>STEP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001585937</rptOwnerCik>
            <rptOwnerName>ARG Private Equity, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6733 S. YALE AVE.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TULSA</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>74136</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
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            <isOther>0</isOther>
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    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001394221</rptOwnerCik>
            <rptOwnerName>Argonaut Holdings, L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6733 S. YALE AVE.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TULSA</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>74136</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
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            <isOther>0</isOther>
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    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001163432</rptOwnerCik>
            <rptOwnerName>KAISER GEORGE B</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O FREDERIC DORWART, LAWYERS</rptOwnerStreet1>
            <rptOwnerStreet2>124 EAST FOURTH STREET</rptOwnerStreet2>
            <rptOwnerCity>TULSA</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>74103</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
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            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001610279</rptOwnerCik>
            <rptOwnerName>Mitchell Steven R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O STEPSTONE GROUP INC.</rptOwnerStreet1>
            <rptOwnerStreet2>450 LEXINGTON AVENUE, 31ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10017</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001728668</rptOwnerCik>
            <rptOwnerName>Waldo Robert</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6733 S. YALE AVE.</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>TULSA,</rptOwnerCity>
            <rptOwnerState>OK</rptOwnerState>
            <rptOwnerZipCode>74136</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-03-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>D</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1439814</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.001</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4993044</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-03-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1439814</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1564814</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-03-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F5"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1439814</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>28.32</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>125000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F4"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-03-23</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>C</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
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            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1439814</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F4"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F4"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>1439814</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4993044</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
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                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
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        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On March 23, 2021, the Reporting Person exchanged 1,439,814 Class B Units of StepStone Group LP for 1,439,814 shares of Class A Common Stock. In connection with the exchange, 1,439,814 shares of Class B Common Stock were automatically redeemed and cancelled.</footnote>
        <footnote id="F2">62,500 of the Class A Common Stock securities are held of record by Steven R. Mitchell. Each of ARG Private Equity, LLC, Argonaut 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. 62,500 of the Class A Common Stock securities are held of record by Robert A. Waldo. Each of ARG Private Equity, LLC, Argonaut 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.</footnote>
        <footnote id="F3">The remaining securities are held of record by Argonaut Holdings, LLC. Argonaut 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.</footnote>
        <footnote id="F4">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.</footnote>
        <footnote id="F5">On March 23, 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.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>ARG Private Equity, LLC; By /s/ Frederic Dorwart, Manager</signatureName>
        <signatureDate>2021-03-25</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Argonaut Holdings, LLC.; By ARG Private Equity, LLC, Manager; By /s/ Frederic Dorwart, Manager</signatureName>
        <signatureDate>2021-03-25</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Frederic Dorwart, Attorney-in-fact for George B. Kaiser</signatureName>
        <signatureDate>2021-03-25</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Steven R. Mitchell</signatureName>
        <signatureDate>2021-03-25</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Robert A. Waldo</signatureName>
        <signatureDate>2021-03-25</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
</SEC-DOCUMENT>
