<SEC-DOCUMENT>0001127602-18-017568-index.html : 20180516
<SEC-HEADER>0001127602-18-017568.hdr.sgml : 20180516
<ACCEPTANCE-DATETIME>20180516064309
ACCESSION NUMBER:		0001127602-18-017568
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180514
FILED AS OF DATE:		20180516
DATE AS OF CHANGE:		20180516

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MACKAY MARTIN
		CENTRAL INDEX KEY:			0001414815

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15943
		FILM NUMBER:		18838760

	MAIL ADDRESS:	
		STREET 1:		PFIZER INC ATTN CORPORATE SECRETARY
		STREET 2:		235 EAST 42ND STREET
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10017

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHARLES RIVER LABORATORIES INTERNATIONAL INC
		CENTRAL INDEX KEY:			0001100682
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731]
		IRS NUMBER:				061397316
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		251 BALLARDVALE ST
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887
		BUSINESS PHONE:		781-222-6000

	MAIL ADDRESS:	
		STREET 1:		251 BALLARDVALE ST
		CITY:			WILMINGTON
		STATE:			MA
		ZIP:			01887

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CHARLES RIVER LABORATORIES HOLDINGS INC
		DATE OF NAME CHANGE:	19991208
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
Document 1 - file: form4.html

Document 1 - RAW XML: form4.xml

</DOCUMENT>
</SEC-DOCUMENT>