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Stock Trading History of James Hamilton E

The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider James Hamilton E since year 2005. The trader's CIK number is 1238989. At the time of this reporting, James Hamilton E is the Director of Costco Wholesale Corp /new . (stock ticker symbol Cost). See this page for all insider trading activities at Costco Wholesale Corp /new .

Stock purchases, sales, and option exercises reported by insider *James Hamilton E* since 2005.
Trade Date	Symbol	Company Name (Issuer)	Trade Type	Shares	Price ($)	Value ($)
2008-04-01	COST	Costco Wholesale Corp /new	Sale	16,000	.00	0
2008-04-01	COST	Costco Wholesale Corp /new	Option Exercise	16,000	44.97	719,500
2008-03-12	COST	Costco Wholesale Corp /new	Sale	16,000	.00	0
2008-03-12	COST	Costco Wholesale Corp /new	Option Exercise	16,000	27.12	434,000

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by James Hamilton E (Director of Costco Wholesale Corp /new at the time of this reporting) see the Securities and Exchange Commission (SEC) website.