<SEC-DOCUMENT>0001415889-21-001433.txt : 20210310
<SEC-HEADER>0001415889-21-001433.hdr.sgml : 20210310
<ACCEPTANCE-DATETIME>20210310200030
ACCESSION NUMBER:		0001415889-21-001433
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20210308
FILED AS OF DATE:		20210310
DATE AS OF CHANGE:		20210310

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Dahiyat Bassil I
		CENTRAL INDEX KEY:			0001591312

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36182
		FILM NUMBER:		21731444

	MAIL ADDRESS:	
		STREET 1:		C/O XENCOR, INC.
		STREET 2:		111 WEST LEMON AVENUE
		CITY:			MONROVIA
		STATE:			CA
		ZIP:			91016

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
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4-03102021_080301.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-03-08</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001591312</rptOwnerCik>
            <rptOwnerName>Dahiyat Bassil I</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O XENCOR, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>111 W. LEMON AVE</rptOwnerStreet2>
            <rptOwnerCity>MONROVIA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>91016</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>true</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>PRESIDENT &amp; CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-03-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>21999</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>163063</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>43</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-03-08</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>131993</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2031-03-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>131993</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>131993</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents restricted stock units that vest as follows: 1/3 of the shares vest on the first, second and third anniversaries of the date of grant.</footnote>
        <footnote id="F2">25% of the shares subject to the option shall vest on the one year anniversary of March 8, 2021 (the &quot;Vesting Commencement Date&quot;) and 1/48th of the shares shall vest monthly thereafter, such that the option shall be fully vested on the four year anniversary of the Vesting Commencement Date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Celia E. Eckert, Attorney-in-Fact</signatureName>
        <signatureDate>2021-03-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
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<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>ex24-03102021_080301.htm
<TEXT>
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<title>Blueprint</title>
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<div><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: center; margin-left: 0px; margin-right: 0px; text-indent: 0px;">
<font style="font-weight: bold; font-family: Times New Roman; font-size: 13px">POWER
OF ATTORNEY</font></div>
<div style="text-align: left; margin-left: 0px; text-indent: 0px; margin-right: 0px;"><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 48px;">
<font style="font-family: Times New Roman; font-size: 13px">Know
all by these presents, that the undersigned hereby constitutes and
appoints each of John J. Kuch and Celia Eckert of Xencor, Inc. (the
<font style="font-weight: bold; font-style: italic">&#x201C;Company&#x201D;</font>),
signing individually, the undersigned&#x2019;s true and lawful
attorney-in-fact and agent to:</font></div>
<div style="text-align: left; margin-left: 0px; text-indent: 48px; margin-right: 0px;"><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; text-indent: 48px; margin-right: 0px;"><font style="font-family: Times New Roman; font-size: 13px">(1)</font><font id="tab2" style="letter-spacing: 12px; color: black">&#xA0;</font><font style="font-family: Times New Roman; font-size: 13px">execute for and on
behalf of the undersigned, an officer, director or holder of 10% of
more of a registered class of securities of the Company, Forms 3, 4
and 5 in accordance with Section 16(a) of the Securities Exchange
Act of 1934, as amended (the <font style="font-weight: bold; font-style: italic">&#x201C;Exchange
Act&#x201D;</font>) and the rules thereunder;</font></div>
<div style="text-align: left; margin-left: 0px; text-indent: 48px; margin-right: 0px;"><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; text-indent: 48px; margin-right: 0px;"><font style="font-family: Times New Roman; font-size: 13px">(2)</font><font id="tab2" style="letter-spacing: 12px; color: black">&#xA0;</font><font style="font-family: Times New Roman; font-size: 13px">do and perform any
and all acts for and on behalf of the undersigned that may be
necessary or desirable to complete and execute such Form 3, 4 or 5,
complete and execute any amendment or amendments thereto, and
timely file such forms or amendments with the United States
Securities and Exchange Commission and any stock exchange or
similar authority; and</font></div>
<div style="text-align: left; margin-left: 0px; text-indent: 48px; margin-right: 0px;"><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; text-indent: 48px; margin-right: 0px;"><font style="font-family: Times New Roman; font-size: 13px">(3)</font><font id="tab2" style="letter-spacing: 12px; color: black">&#xA0;</font><font style="font-family: Times New Roman; font-size: 13px">take any other
action of any nature whatsoever in connection with the foregoing
which, in the opinion of such attorney-in-fact, may be of benefit,
in the best interest of, or legally required by, the undersigned,
it being understood that the documents executed by such
attorney-in-fact on behalf of the undersigned pursuant to this
Power of Attorney shall be in such form and shall contain such
terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact&#x2019;s discretion.</font></div>
<div style="text-align: left; margin-left: 0px; text-indent: 48px; margin-right: 0px;"><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 48px;">
<font style="font-family: Times New Roman; font-size: 13px">The
undersigned hereby grants to each such attorney-in-fact full power
and authority to do and perform any and every act and thing
whatsoever requisite, necessary, or proper to be done in the
exercise of any of the rights and powers herein granted, as fully
to all intents and purposes as the undersigned might or could do if
personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or
such attorney-in- fact&#x2019;s substitute or substitutes, shall
lawfully do or cause to be done by virtue of this power of attorney
and the rights and powers herein granted. The undersigned
acknowledges that each of the foregoing attorneys-in-fact, in
serving in such capacity at the request of the undersigned, is not
assuming, nor is the Company assuming, any of the
undersigned&#x2019;s responsibilities to comply with Section 16 of
the Exchange Act.</font></div>
<div style="text-align: left; margin-left: 0px; text-indent: 48px; margin-right: 0px;"><font style="font-family: Times New Roman; font-size: 10">&#xA0;</font></div>
<div style="text-align: left; margin-left: 0px; margin-right: 0px; text-indent: 48px;">
<font style="font-family: Times New Roman; font-size: 13px">This
Power of Attorney shall remain in full force and effect until the
earliest to occur of (a) the undersigned is no longer required to
file Forms 3, 4 and 5 with respect to the undersigned&#x2019;s
holdings of and&#xA0; transactions in securities issued by the
Company, (b) revocation by the undersigned in a signed writing
delivered to the foregoing attorney-in-fact or (c) until such
attorney-in-fact shall no longer be employed by the
Company.&#xA0;<br></font></div>
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<font style="font-family: Times New Roman; font-size: 13px;"><font style="font-weight: bold">IN WITNESS WHEREOF</font>, the undersigned has
caused this Power of Attorney to be executed as of this 4th day of
March, 2020.&#xA0;<br></font></div>
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<font style="font-family: Times New Roman; font-size: 13px;"><font style="text-decoration: underline">/s/ Bassil I.
Dahiyat</font><br></font></div>
<div style="text-align: justify; margin-left: 204px; margin-right: 0px; text-indent: 0px;">
<font style="font-family: Times New Roman; font-size: 13px;">Bassil
I. Dahiyat<br></font></div>
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