<SEC-DOCUMENT>0001415889-25-016988.txt : 20250612
<SEC-HEADER>0001415889-25-016988.hdr.sgml : 20250612
<ACCEPTANCE-DATETIME>20250612165617
ACCESSION NUMBER:		0001415889-25-016988
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250611
FILED AS OF DATE:		20250612
DATE AS OF CHANGE:		20250612

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Hohenstein Ken
		CENTRAL INDEX KEY:			0002031265
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42187
		FILM NUMBER:		251043659

	MAIL ADDRESS:	
		STREET 1:		362 SOUTH STREET
		CITY:			ROCHESTER
		STATE:			MI
		ZIP:			48307

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			OneStream, Inc.
		CENTRAL INDEX KEY:			0001889956
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-PREPACKAGED SOFTWARE [7372]
		ORGANIZATION NAME:           	06 Technology
		EIN:				873199478
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		191 N. CHESTER STREET
		CITY:			BIRMINGHAM
		STATE:			MI
		ZIP:			48009
		BUSINESS PHONE:		(248) 650-1490

	MAIL ADDRESS:	
		STREET 1:		191 N. CHESTER STREET
		CITY:			BIRMINGHAM
		STATE:			MI
		ZIP:			48009
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4-06122025_080612.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-06-11</periodOfReport>

    <issuer>
        <issuerCik>0001889956</issuerCik>
        <issuerName>OneStream, Inc.</issuerName>
        <issuerTradingSymbol>OS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002031265</rptOwnerCik>
            <rptOwnerName>Hohenstein Ken</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ONESTREAM, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>191 N. CHESTER STREET</rptOwnerStreet2>
            <rptOwnerCity>BIRMINGHAM</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48009</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>Chief Revenue Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-06-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>6280</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>28.23</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1003163</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>790279</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See Footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Represents the number of shares required to be sold to cover the statutory tax withholding obligations in connection with the vesting of restricted stock units. This sale is mandated by the Issuer's election under its equity incentive plan to require the satisfaction of statutory tax withholding obligations in connection with the vesting of restricted stock units to be funded by a &quot;sell to cover&quot; transaction and does not represent a discretionary sale by the Reporting Person.</footnote>
        <footnote id="F2">The shares reported include unvested restricted stock units.</footnote>
        <footnote id="F3">Shares held by the Hohenstein Purple Elephant 2019 Irrevocable Grantor Trust (the &quot;Hohenstein Purple Elephant Trust&quot;). The Reporting Person may be deemed to have voting and dispositive power over the shares held by the Hohenstein Purple Elephant Trust.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Holly Koczot, attorney-in-fact</signatureName>
        <signatureDate>2025-06-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
