<SEC-DOCUMENT>0001558370-15-000541-index.html : 20150424
<SEC-HEADER>0001558370-15-000541.hdr.sgml : 20150424
<ACCEPTANCE-DATETIME>20150423203645
ACCESSION NUMBER:		0001558370-15-000541
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		3
FILED AS OF DATE:		20150424
DATE AS OF CHANGE:		20150423
EFFECTIVENESS DATE:		20150424

FILER:

	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

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36182
		FILM NUMBER:		15789739

	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>DEFA14A
<SEQUENCE>1
<FILENAME>xncr-20150609xdefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: xncr-20150609xdefa14a.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>xncr-20150609xdefa14ag001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: xncr-20150609xdefa14ag001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>xncr-20150609xdefa14ag002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: xncr-20150609xdefa14ag002.jpg

</DOCUMENT>
</SEC-DOCUMENT>