William Richard Wilcox - Oct 6, 2025 Form 3 Insider Report for COSTCO WHOLESALE CORP /NEW (COST)

Signature
/s/ Alejandro Torres, Attorney-in-Fact
Stock symbol
COST
Transactions as of
Oct 6, 2025
Transactions value $
$0
Form type
3
Date filed
10/9/2025, 05:55 PM

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Wilcox William Richard Executive Vice President 999 LAKE DRIVE, ISSAQUAH /s/ Alejandro Torres, Attorney-in-Fact 2025-10-09 0002087546

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding COST Common Stock 4.4K Oct 6, 2025 By 401(k)
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Remarks:

Exhibit 24: Power of Attorney provided herewith.