<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2022-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0001692787</issuerCik>
        <issuerName>Kinetik Holdings Inc.</issuerName>
        <issuerTradingSymbol>KNTK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001644123</rptOwnerCik>
            <rptOwnerName>Stellato Steven</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2700 POST OAK BLVD SUITE 300</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77056</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>See Remarks</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionCoding>
                <transactionFormType></transactionFormType>
            </transactionCoding>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>249153</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On June 9, 2022, Kinetik Holdings Inc.'s (the &quot;Company&quot;) common stock split on a two-for-one basis resulting in an increase of 117,067 shares beneficially owned by the reporting person.</footnote>
        <footnote id="F2">Includes 15,019 shares not previously reported pursuant to Rule 16a-11 under the Securities Exchange Act of 1934 that were acquired in 2022 under the Company's Dividend and Distribution Reinvestment Plan after Mr. Stellato's immediately prior Form 4 filing.</footnote>
    </footnotes>

    <remarks>Exec.VP, Chief Accounting and Administrative Operating Officer</remarks>

    <ownerSignature>
        <signatureName>/s/Todd Carpenter as Attorney-in-Fact for Steven Stellato</signatureName>
        <signatureDate>2023-02-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
