<SEC-DOCUMENT>0001061983-21-000269-index.html : 20211228
<SEC-HEADER>0001061983-21-000269.hdr.sgml : 20211228
<ACCEPTANCE-DATETIME>20211228171651
ACCESSION NUMBER:		0001061983-21-000269
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211227
FILED AS OF DATE:		20211228
DATE AS OF CHANGE:		20211228

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WIERENGA WENDALL
		CENTRAL INDEX KEY:			0001235945

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50633
		FILM NUMBER:		211525619

	MAIL ADDRESS:	
		STREET 1:		12790 EL CAMINO REAL
		STREET 2:		C/O NEUROCRINE BIOSCIENCES
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130

	FORMER NAME:	
		FORMER CONFORMED NAME:	WIERENGA WENDALL D
		DATE OF NAME CHANGE:	20030527

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CYTOKINETICS INC
		CENTRAL INDEX KEY:			0001061983
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				943291317
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		280 EAST GRAND AVENUE
		STREET 2:		.
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
		BUSINESS PHONE:		(650) 624-3000

	MAIL ADDRESS:	
		STREET 1:		280 EAST GRAND AVENUE
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgardoc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: edgardoc.html

Document 1 - RAW XML: edgardoc.xml

</DOCUMENT>
</SEC-DOCUMENT>