X0303 4 2009-11-09 0 0000909832 COSTCO WHOLESALE CORP /NEW COST 0001184493 GALANTI RICHARD A 999 LAKE DRIVE ISSAQUAH WA 98027 1 1 0 0 Executive VP and CFO Common Stock 2009-11-09 4 M 0 20000 43.00 A 77105 D Common Stock 2009-11-09 4 M 0 15000 34.28 A 92105 D Common Stock 2009-11-09 4 M 0 10000 49.8125 A 102105 D Common Stock 2009-11-09 4 S 0 45000 D 57105 D Stock Option 43.00 2009-11-09 4 M 0 20000 43.00 D 2000-03-13 2010-03-13 Common Stock 20000 20000 D Stock Option 34.28 2009-11-09 4 M 0 15000 34.28 D 2001-04-24 2011-04-24 Common Stock 15000 10000 D Stock Option 49.8125 2009-11-09 4 M 0 10000 49.8125 D 2000-03-13 2010-03-13 Common Stock 10000 5000 D No. of Shares Price 3,440 $60.0400 3,775 $60.0600 800 $60.0700 3,284 $60.0800 7,600 $60.0900 3,900 $60.1000 1,201 $60.1100 700 $60.1200 300 $60.1300 100 $60.1600 3,400 $60.1700 4,100 $60.1800 400 $60.1900 1,900 $60.2000 100 $60.2100 4,411 $60.2600 700 $60.2700 4,589 $60.2800 300 $60.2900 Deanna K. Nakashima, attorney-in-fact 2009-11-10