<SEC-DOCUMENT>0001104659-19-062888-index.html : 20191113
<SEC-HEADER>0001104659-19-062888.hdr.sgml : 20191113
<ACCEPTANCE-DATETIME>20191113061356
ACCESSION NUMBER:		0001104659-19-062888
CONFORMED SUBMISSION TYPE:	13F-HR
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20190930
FILED AS OF DATE:		20191113
DATE AS OF CHANGE:		20191113
EFFECTIVENESS DATE:		20191113

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PRIMECAP MANAGEMENT CO/CA/
		CENTRAL INDEX KEY:			0000763212
		IRS NUMBER:				953868081

	FILING VALUES:
		FORM TYPE:		13F-HR
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	028-01469
		FILM NUMBER:		191211622

	BUSINESS ADDRESS:	
		STREET 1:		177 EAST COLORADO BLVD.
		STREET 2:		11TH FLOOR
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91105
		BUSINESS PHONE:		6263049222

	MAIL ADDRESS:	
		STREET 1:		177 EAST COLORADO BLVD.
		STREET 2:		11TH FLOOR
		CITY:			PASADENA
		STATE:			CA
		ZIP:			91105
</SEC-HEADER>
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<TYPE>13F-HR
<SEQUENCE>1
<FILENAME>primary_doc.xml
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<DOCUMENT>
<TYPE>INFORMATION TABLE
<SEQUENCE>2
<FILENAME>a19-21706_1informationtable.xml
<DESCRIPTION>INFORMATION TABLE
<TEXT>
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