<SEC-DOCUMENT>0001171843-18-008556-index.html : 20181226
<SEC-HEADER>0001171843-18-008556.hdr.sgml : 20181226
<ACCEPTANCE-DATETIME>20181226110038
ACCESSION NUMBER:		0001171843-18-008556
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20181221
FILED AS OF DATE:		20181226
DATE AS OF CHANGE:		20181226

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TARNOW MICHAEL M
		CENTRAL INDEX KEY:			0001263647

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36687
		FILM NUMBER:		181251786

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Xenon Pharmaceuticals Inc.
		CENTRAL INDEX KEY:			0001582313
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				980661854
		STATE OF INCORPORATION:			A1
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		200 - 3650 GILMORE WAY
		CITY:			BURNABY
		STATE:			A1
		ZIP:			V5G 48W
		BUSINESS PHONE:		(604) 484-3300

	MAIL ADDRESS:	
		STREET 1:		200 - 3650 GILMORE WAY
		CITY:			BURNABY
		STATE:			A1
		ZIP:			V5G 48W
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
Document 1 - file: ownership.html

Document 1 - RAW XML: ownership.xml

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24.1
<SEQUENCE>2
<FILENAME>exh_241.htm
<DESCRIPTION>EXHIBIT 24.1
<TEXT>
Document 2 - file: exh_241.htm

</DOCUMENT>
</SEC-DOCUMENT>