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

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2016-06-08</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000718877</issuerCik>
        <issuerName>Activision Blizzard, Inc.</issuerName>
        <issuerTradingSymbol>ATVI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001586821</rptOwnerCik>
            <rptOwnerName>ASAC II LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O NORTHERN TRUST PRIVATE EQUITY ADMIN.</rptOwnerStreet1>
            <rptOwnerStreet2>DEPARTMENT 2008, 801 SOUTH CANAL</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60607</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001586949</rptOwnerCik>
            <rptOwnerName>ASAC II LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O NORTHERN TRUST PRIVATE EQUITY ADMIN.</rptOwnerStreet1>
            <rptOwnerStreet2>DEPARTMENT 2008, 801 SOUTH CANAL</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60607</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, par value $0.000001 per share</value>
            </securityTitle>
            <transactionDate>
                <value>2016-06-08</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>140936582</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>31031460</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">ASAC II LP distributed 140,936,582 shares of Common Stock to limited partners in accordance with the Second Amended and Restated Limited Partnership Agreement of ASAC II LP, dated June 2, 2016 (the &quot;Second Amended LPA&quot;).</footnote>
        <footnote id="F2">The shares of Common Stock distributed to the limited partners were distributed in accordance with the waterfall in the Second Amended LPA based on the average closing price over the 15 trading days immediately preceding the distribution date, which equaled $38.42.</footnote>
    </footnotes>

    <remarks>ASAC II LLC is the general partner of ASAC II LP.</remarks>

    <ownerSignature>
        <signatureName>/s/ Brian G. Kelly, ASAC II LP, by Brian G. Kelly, Manager of ASAC II LLC, its general partner</signatureName>
        <signatureDate>2016-06-09</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Robert A. Kotick, ASAC II LLC, by Robert A. Kotick, Manager</signatureName>
        <signatureDate>2016-06-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
