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* WALKER THOMAS KIRK (Last) (First) (Middle) 999 LAKE DRIVE (Street) ISSAQUAH WA 98027 (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) Director 10% Owner X Officer (give title below) Other (specify below) Executive VP
	3. Date of Earliest Transaction (Month/Day/Year) 10/14/2011
	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	10/14/2011		M		44,000	A	$43.79	297,763	D
Common Stock	10/14/2011		S		44,000	D	(1)	253,763	D

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	$43.79	10/14/2011		M			44,000	04/01/2005	04/01/2015	Common Stock	44,000	$43.79	0	D

Explanation of Responses:

1. Shares sold as follows: 700 @ 81.1900 600 @ 81.2000 500 @ 81.2100 521 @ 81.2200 755 @ 81.2300 1324 @ 81.2400 2196 @ 81.2500 1977 @ 81.2600 1248 @ 81.2700 1306 @ 81.2800 1180 @ 81.2900 7677 @ 81.3000 100 @ 81.3002 100 @ 81.3003 100 @ 81.3010 100 @ 81.3013 100 @ 81.3014 100 @ 81.3025 200 @ 81.3040 100 @ 81.3044 1258 @ 81.3050 3303 @ 81.3100 200 @ 81.3112 100 @ 81.3118 100 @ 81.3125 200 @ 81.3126 200 @ 81.3131 6000 @ 81.3150 200 @ 81.3180 7355 @ 81.3200 100 @ 81.3201 100 @ 81.3206 100 @ 81.3223 100 @ 81.3225 3410 @ 81.3250 290 @ 81.3300 100 @ 81.3400

Remarks:

	Deanna K. Nakashima, attorney-in-fact	10/17/2011
	** 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).
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