<?xml version="1.0"?><?xml-stylesheet type="text/xsl" href="../4_X02.xsl"?><ownershipDocument>    <schemaVersion>X0303</schemaVersion>    <documentType>4</documentType>    <periodOfReport>2010-01-21</periodOfReport>    <notSubjectToSection16>0</notSubjectToSection16>    <issuer>        <issuerCik>0001323854</issuerCik>        <issuerName>Warner Chilcott plc</issuerName>        <issuerTradingSymbol>WCRX</issuerTradingSymbol>    </issuer>    <reportingOwner>        <reportingOwnerId>            <rptOwnerCik>0001374178</rptOwnerCik>            <rptOwnerName>Cross Leland H</rptOwnerName>        </reportingOwnerId>        <reportingOwnerAddress>            <rptOwnerStreet1>C/O WARNER CHILCOTT CORPORATION</rptOwnerStreet1>            <rptOwnerStreet2>100 ENTERPRISE DRIVE</rptOwnerStreet2>            <rptOwnerCity>ROCKAWAY</rptOwnerCity>            <rptOwnerState>NJ</rptOwnerState>            <rptOwnerZipCode>07866</rptOwnerZipCode>            <rptOwnerStateDescription></rptOwnerStateDescription>        </reportingOwnerAddress>        <reportingOwnerRelationship>            <isDirector>0</isDirector>            <isOfficer>1</isOfficer>            <isTenPercentOwner>0</isTenPercentOwner>            <isOther>0</isOther>            <officerTitle>Senior V.P., Tech. Operations</officerTitle>        </reportingOwnerRelationship>    </reportingOwner>    <nonDerivativeTable>        <nonDerivativeTransaction>            <securityTitle>                <value>Ordinary shares, par value $0.01 per share</value>            </securityTitle>            <transactionDate>                <value>2010-01-21</value>            </transactionDate>            <transactionCoding>                <transactionFormType>4</transactionFormType>                <transactionCode>S</transactionCode>                <equitySwapInvolved>0</equitySwapInvolved>            </transactionCoding>            <transactionAmounts>                <transactionShares>                    <value>1052</value>                </transactionShares>                <transactionPricePerShare>                    <value>28.1724</value>                </transactionPricePerShare>                <transactionAcquiredDisposedCode>                    <value>D</value>                </transactionAcquiredDisposedCode>            </transactionAmounts>            <postTransactionAmounts>                <sharesOwnedFollowingTransaction>                    <value>339226</value>                </sharesOwnedFollowingTransaction>            </postTransactionAmounts>            <ownershipNature>                <directOrIndirectOwnership>                    <value>D</value>                </directOrIndirectOwnership>            </ownershipNature>        </nonDerivativeTransaction>    </nonDerivativeTable>    <remarks>The above disclosed sales were made pursuant to an existing 10b5-1 plan to cover taxes associated with the vesting of restricted shares.</remarks>    <ownerSignature>        <signatureName>/s/ Leland H. Cross</signatureName>        <signatureDate>2010-01-22</signatureDate>    </ownerSignature></ownershipDocument>