<SEC-DOCUMENT>0002089784-25-000003.txt : 20251007
<SEC-HEADER>0002089784-25-000003.hdr.sgml : 20251007
<ACCEPTANCE-DATETIME>20251007174906
ACCESSION NUMBER:		0002089784-25-000003
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20251003
FILED AS OF DATE:		20251007
DATE AS OF CHANGE:		20251007

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Sridharan Baskar
		CENTRAL INDEX KEY:			0002089784
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42187
		FILM NUMBER:		251380794

	MAIL ADDRESS:	
		STREET 1:		C/O ONESTREAM, INC.
		STREET 2:		191 N. CHESTER STREET
		CITY:			BIRMINGHAM
		STATE:			MI
		ZIP:			48009

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>3
<SEQUENCE>1
<FILENAME>form3-10072025_091003.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2025-10-03</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002089784</rptOwnerCik>
            <rptOwnerName>Sridharan Baskar</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>true</isDirector>
            <isOfficer>false</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes></footnotes>

    <ownerSignature>
        <signatureName>/s/ Holly Koczot, attorney-in-fact</signatureName>
        <signatureDate>2025-10-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ex24-10072025_091003.htm
<TEXT>
<!DOCTYPE html PUBLIC "-//IETF//DTD HTML//EN">
<html><head><title>ex24-10072025_091003.htm</title><meta name="date" content="03/27/2025"></head><body style="margin-top:0;font-family:Times New Roman; font-size:10pt; color:#000000">
<p style="margin:0px"><br></p>
<p style="margin-top:16px; margin-bottom:0px"><br></p>
<p style="margin:0px; font-size:12pt" align="center">POWER OF ATTORNEY</p>
<p style="margin:0px" align="justify"><br></p>
<p style="margin-top:16px; margin-bottom:0px; font-size:12pt" align="justify">The undersigned, as a Section 16 reporting person of OneStream, Inc. (the &#147;Company&#148;), hereby constitutes and appoints Stephanie Chen and each of the responsible attorneys and paralegals of Wilson Sonsini Goodrich &amp; Rosati, Professional Corporation, and William Koefoed, Holly Koczot and Kelly Katchka of the Company, the undersigned&#146;s true and lawful attorney-in-fact to:</p>
<p style="margin-top:16px;margin-bottom:-1pt;font-size:1pt"></p><p style="margin-top:0px; margin-bottom:-2px; text-indent:48px; width:72px; font-size:12pt; float:left">1.</p>
<p style="margin:0px; padding-left:72px; text-indent:-2px; font-size:12pt" align="justify">complete and execute Forms ID, 3, 4 and 5 and other forms and all amendments thereto as such attorney-in-fact shall in his or her discretion determine to be required or advisable pursuant to Section 16 of the Securities Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;), and the rules and regulations promulgated thereunder, or any successor laws and regulations, as a consequence of the undersigned&#146;s ownership, acquisition or disposition of securities of the Company; and</p>
<p style="margin-top:16px;margin-bottom:-1pt;font-size:1pt"></p><p style="margin-top:0px; margin-bottom:-2px; text-indent:48px; width:72px; font-size:12pt; clear:left; float:left">2.</p>
<p style="margin:0px; padding-left:72px; text-indent:-2px; font-size:12pt" align="justify">do all acts necessary in order to file such forms with the Securities and Exchange Commission, any securities exchange or national association, the Company and such other person or agency as the attorney-in-fact shall deem appropriate.</p>
<p style="margin-top:16px; margin-bottom:0px; text-indent:48px; font-size:12pt; clear:left" align="justify">The undersigned hereby ratifies and confirms all that said attorneys-in-fact and agents shall do or cause to be done by virtue hereof. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned&#146;s responsibilities to comply with Section 16 of the Exchange Act.</p>
<p style="margin-top:16px; margin-bottom:0px; text-indent:48px; font-size:12pt" align="justify">This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms ID, 3, 4 and 5 with respect to the undersigned&#146;s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the Company and the foregoing attorneys-in-fact.</p>
<p style="margin-top:16px; margin-bottom:0px; text-indent:48px; font-size:12pt" align="justify">IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of October 6, 2025.</p>
<p style="margin-top:16px; margin-bottom:0px" align="justify"><br></p>
<p style="margin-top:16px; margin-bottom:0px"><br></p>
<p style="margin-top:16px; margin-bottom:0px"><br></p>
<p style="margin-top:0px; margin-bottom:-2px; text-indent:312px; width:396px; font-size:12pt; float:left">Signature:</p>
<p style="margin:0px; padding-left:312px; text-indent:-2px; font-size:12pt">&nbsp;<u>/s/ Baskar Sridharan</u></p>
<p style="margin-top:0px; margin-bottom:-2px; text-indent:312px; width:396px; font-size:12pt; clear:left; float:left">Print Name:</p>
<p style="margin:0px; padding-left:312px; text-indent:-2px; font-size:12pt">Baskar Sridharan</p>
<p style="margin:0px; clear:left"><br><br></p>
<p style="margin:0px"><br></p>
<p style="margin-top:16px; margin-bottom:0px"><br></p>
</body></html>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
