<SEC-DOCUMENT>0001209191-14-028592.txt : 20140422
<SEC-HEADER>0001209191-14-028592.hdr.sgml : 20140422
<ACCEPTANCE-DATETIME>20140422163452
ACCESSION NUMBER:		0001209191-14-028592
CONFORMED SUBMISSION TYPE:	3/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20131202
FILED AS OF DATE:		20140422
DATE AS OF CHANGE:		20140422

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Xencor Inc
		CENTRAL INDEX KEY:			0001326732
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				201622502
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		111 WEST LEMON AVE
		CITY:			MONROVIA
		STATE:			CA
		ZIP:			91016
		BUSINESS PHONE:		626-305-5900

	MAIL ADDRESS:	
		STREET 1:		111 WEST LEMON AVE
		CITY:			MONROVIA
		STATE:			CA
		ZIP:			91016

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Baracchini Edgardo Jr
		CENTRAL INDEX KEY:			0001291972

	FILING VALUES:
		FORM TYPE:		3/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36182
		FILM NUMBER:		14776606

	MAIL ADDRESS:	
		STREET 1:		C/O METABASIS THERAPEUTICS
		STREET 2:		9390 TOWNE CENTRE DRIVE, BLDG. 300
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>3/A
<SEQUENCE>1
<FILENAME>doc3a.xml
<DESCRIPTION>FORM 3/A SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2013-12-02</periodOfReport>

    <dateOfOriginalSubmission>2013-12-02</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001326732</issuerCik>
        <issuerName>Xencor Inc</issuerName>
        <issuerTradingSymbol>XNCR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001291972</rptOwnerCik>
            <rptOwnerName>Baracchini Edgardo Jr</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O XENCOR, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>111 WEST LEMON AVENUE</rptOwnerStreet2>
            <rptOwnerCity>MONROVIA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>91016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Business Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.59</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2020-01-17</value>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>183171</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">25% of the shares subject to the option vested on the one year anniversary of January 12, 2010 (the &quot;Vesting Commencement Date&quot;), and 1/48th of the shares vest monthly thereafter, such that the option shall be fully vested and exercisable on the four year anniversary of the Vesting Commencement Date.</footnote>
        <footnote id="F2">This Form 3 is being amended to correct the expiration date of the stock option which was originally reported as July 27, 2020.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John J. Kuch, Attorney-in-Fact</signatureName>
        <signatureDate>2014-04-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
