XBUE:COST Costco Wholesale Corp DR Insider Activity 4 Filing - 4/18/2012

Effective Date 4/18/2012

XBUE:COST Fair Value Estimate
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XBUE:COST Consider Buying
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XBUE:COST Consider Selling
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XBUE:COST Economic Moat
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FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
SINEGAL JAMES D
  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)
(Last)
(First)
(Middle)
999 LAKE DRIVE
3. Date of Earliest Transaction (Month/Day/Year)
04/18/2012
(Street)

ISSAQUAH, WA 98027
4. If Amendment, Date 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
(City)
(State)
(Zip)
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 04/18/2012   S(1)   16,000 D (2) 867,573 D  
Common Stock               942,708 I By LLC
Common Stock               84,669 I By GRAT
Common Stock               84,669 I By Spouse's GRAT

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 Underlying Securities
(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 of Derivative Security: 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

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SINEGAL JAMES D
999 LAKE DRIVE
ISSAQUAH, WA 98027
  X      

Signatures

 Deanna K. Nakashima, attorney-in-fact   04/18/2012
** Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) This sale was effected pursuant to a 10b5-1 trading plan.
(2) Shares sold as follows: 200 @ 87.1900 97 @ 87.2000 100 @ 87.2200 100 @ 87.2250 100 @ 87.2300 200 @ 87.2500 100 @ 87.2600 100 @ 87.2700 5500 @ 87.3000 100 @ 87.3300 100 @ 87.3400 100 @ 87.3600 100 @ 87.3700 200 @ 87.3900 200 @ 87.4000 200 @ 87.4200 200 @ 87.4300 100 @ 87.4500 300 @ 87.4800 500 @ 87.4900 100 @ 87.5000 400 @ 87.5050 300 @ 87.5100 600 @ 87.5200 300 @ 87.5300 100 @ 87.5700 400 @ 87.5900 400 @ 87.6000 1203 @ 87.6100 700 @ 87.6300 200 @ 87.6400 700 @ 87.6500 400 @ 87.6600 300 @ 87.6700 300 @ 87.6800 200 @ 87.6901 300 @ 87.7000 100 @ 87.7100 300 @ 87.7200 100 @ 87.7600

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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XBUE:COST Costco Wholesale Corp DR Insider Activity 4 Filling

Costco Wholesale Corp DR XBUE:COST Stock - Get Insider Activity SEC Filing of Costco Wholesale Corp DR XBUE:COST stocks, including company profile, shares outstanding, strategy, business segments, operations, officers, consolidated financial statements, financial notes and ownership information.

XBUE:COST Costco Wholesale Corp DR Insider Activity 4 Filing - 4/18/2012
Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol |  Title Star Rating |  Category |  Total Assets |  Top Holdings |  Top Sectors |  Symbol |  Name Title |  Date |  Author |  Collection |  Interest |  Popularity Topic |  Sector |  Key Indicators |  User Interest |  Market Cap |  Industry Name |  Ticker |  Star Rating |  Market Cap |  Stock Type |  Sector |  Industry Star Rating |  Investment Style |  Total Assets |  Category |  Top Holdings |  Top Sectors |  Symbol / Ticker |  Title Star Rating |  Category |  Total Assets |  Symbol / Ticker |  Name Title |  Date |  Author |  Collection |  Popularity |  Interest Title |  Date |  Company |  Symbol |  Interest |  Popularity Topic |  Sector |  Key Indicators |  User Interest |  Market Cap |  Industry Title |  Date |  Company |  Symbol |  Interest |  Popularity

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