<SEC-DOCUMENT>0000947871-23-001045.txt : 20231107
<SEC-HEADER>0000947871-23-001045.hdr.sgml : 20231107
<ACCEPTANCE-DATETIME>20231107160955
ACCESSION NUMBER:		0000947871-23-001045
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20231106
FILED AS OF DATE:		20231107
DATE AS OF CHANGE:		20231107

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Jewell Jeffrey A
		CENTRAL INDEX KEY:			0001722782

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40392
		FILM NUMBER:		231383783

	MAIL ADDRESS:	
		STREET 1:		ONE ENERGY PLAZA
		CITY:			DETROIT
		STATE:			MI
		ZIP:			48226

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DT Midstream, Inc.
		CENTRAL INDEX KEY:			0001842022
		STANDARD INDUSTRIAL CLASSIFICATION:	NATURAL GAS TRANSMISSION [4922]
		IRS NUMBER:				382663964
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		500 WOODWARD AVENUE
		STREET 2:		SUITE 2900
		CITY:			DETROIT
		STATE:			MI
		ZIP:			48226-1279
		BUSINESS PHONE:		313-402-8532

	MAIL ADDRESS:	
		STREET 1:		500 WOODWARD AVENUE
		STREET 2:		SUITE 2900
		CITY:			DETROIT
		STATE:			MI
		ZIP:			48226-1279
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-11-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001842022</issuerCik>
        <issuerName>DT Midstream, Inc.</issuerName>
        <issuerTradingSymbol>DTM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001722782</rptOwnerCik>
            <rptOwnerName>Jewell Jeffrey A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>500 WOODWARD AVE.</rptOwnerStreet1>
            <rptOwnerStreet2>29TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>DETROIT</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48226</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Executive V.P., CFO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-11-06</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>298</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>56.15</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>36031</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $56.135 to $56.1464, inclusive. The reporting person undertakes to provide to DT Midstream, Inc., any security holder of DT Midstream, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote (1).</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Andrew Hayner, Attorney-in-Fact</signatureName>
        <signatureDate>2023-11-07</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
