SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* MEISENBACH JOHN W (Last) (First) (Middle) 1325 4TH AVE., SUITE 2100 (Street) SEATTLE WA 98101 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol COSTCO WHOLESALE CORP /NEW [ COST ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 05/27/2011
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	05/27/2011		M		12,000	A	$39.65	18,000	D
Common Stock	05/27/2011		M		2,300	A	$37.35	20,300	D
Common Stock	05/27/2011		M		12,000	A	$43.79	32,300	D
Common Stock	05/27/2011		S		26,300	D	(1)	6,000	D
Common Stock								50,000	I	Trustee - RTMT Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option	$39.65	05/27/2011		M			12,000	04/01/2002	04/01/2012	Common Stock	12,000	$39.65	0	D
Stock Option	$37.35	05/27/2011		M			2,300	04/01/2004	04/01/2014	Common Stock	2,300	$37.35	0	D
Stock Option	$43.79	05/27/2011		M			12,000	04/01/2005	04/01/2015	Common Stock	12,000	$43.79	0	D

Explanation of Responses:

1. Shares sold as follows: 1619 @ 80.8100 500 @ 80.8101 100 @ 80.8200 100 @ 80.8300 200 @ 80.8301 100 @ 80.8307 381 @ 80.8400 500 @ 80.8401 1500 @ 80.8600 600 @ 80.8900 700 @ 80.9200 700 @ 80.9201 5540 @ 80.9300 860 @ 80.9311 800 @ 80.9400 100 @ 80.9401 400 @ 80.9450 700 @ 80.9600 100 @ 80.9700 1000 @ 81.0410 100 @ 81.0900 100 @ 81.1000 100 @ 81.1200 200 @ 81.1501 100 @ 81.1600 100 @ 81.2000 100 @ 81.2003 600 @ 81.2136 200 @ 81.2412 200 @ 81.2516 400 @ 81.2562 300 @ 81.2800 300 @ 81.2900 900 @ 81.3000 400 @ 81.3200 100 @ 81.3206 400 @ 81.3209 200 @ 81.3300 300 @ 81.3400 200 @ 81.3511 500 @ 81.3520 200 @ 81.3600 200 @ 81.3750 825 @ 81.3878 175 @ 81.3900 200 @ 81.3904 300 @ 81.4000 100 @ 81.4116 500 @ 81.4140 900 @ 81.4300 500 @ 81.4400 100 @ 81.4405

Remarks:

	Deanna K. Nakashima, attorney-in-fact	05/31/2011
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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