<SEC-DOCUMENT>0000909832-15-000021-index.html : 20151218
<SEC-HEADER>0000909832-15-000021.hdr.sgml : 20151218
<ACCEPTANCE-DATETIME>20151218135304
ACCESSION NUMBER:		0000909832-15-000021
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20151218
DATE AS OF CHANGE:		20151218
EFFECTIVENESS DATE:		20151218

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			COSTCO WHOLESALE CORP /NEW
		CENTRAL INDEX KEY:			0000909832
		STANDARD INDUSTRIAL CLASSIFICATION:	RETAIL-VARIETY STORES [5331]
		IRS NUMBER:				911223280
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			0902

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20355
		FILM NUMBER:		151296298

	BUSINESS ADDRESS:	
		STREET 1:		999 LAKE DRIVE
		CITY:			ISSAQUAH
		STATE:			WA
		ZIP:			98027-
		BUSINESS PHONE:		4253138100

	MAIL ADDRESS:	
		STREET 1:		999 LAKE DRIVE
		CITY:			ISSAQUAH
		STATE:			WA
		ZIP:			98027

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COSTCO COMPANIES INC
		DATE OF NAME CHANGE:	19970401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PRICE/COSTCO INC
		DATE OF NAME CHANGE:	19930728
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>costdefproxy2015additional.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: costdefproxy2015additional.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>proxynoticepage001a01.jpg
<TEXT>
Document 2 - file: proxynoticepage001a01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>proxynoticepage002a01.jpg
<TEXT>
Document 3 - file: proxynoticepage002a01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>proxynoticepage003a01.jpg
<TEXT>
Document 4 - file: proxynoticepage003a01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>proxynoticepage004a01.jpg
<TEXT>
Document 5 - file: proxynoticepage004a01.jpg

</DOCUMENT>
</SEC-DOCUMENT>