GARY MILLERCHIP - 22 Oct 2025 Form 4 Insider Report for COSTCO WHOLESALE CORP /NEW (COST)

Role
Executive Vice President
Signature
/s/ Alejandro Torres, Attorney-in-Fact
Issuer symbol
COST
Transactions as of
22 Oct 2025
Net transactions value
-$768,374
Form type
4
Filing time
24 Oct 2025, 19:23:44 UTC
Previous filing
20 Jun 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
MILLERCHIP GARY Executive Vice President 999 LAKE DRIVE, ISSAQUAH /s/ Alejandro Torres, Attorney-in-Fact 24 Oct 2025 0001771770

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction COST Common Stock Award $0 +6,268 +56% $0.000000 17,433 22 Oct 2025 Direct F1, F2
transaction COST Common Stock Tax liability $295,732 -313 -1.8% $944.68 17,120 22 Oct 2025 Direct F3
transaction COST Common Stock Tax liability $472,642 -500 -2.9% $944.68 16,619 22 Oct 2025 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Grant was initially made on October 22, 2024, subject to performance conditions concerning fiscal 2025, which have been deemed satisfied by the Compensation Committee of the Board of Directors. The earned awards vest 20% on the first anniversary of the grant date and an additional 20% vest over each of the ensuing four years based on continued employment with the Company.
F2 Not applicable. Grant of Restricted Stock Units.
F3 This transaction is a withholding by the Company for taxes in connection with the vesting of previously granted restricted stock units. The price represents the closing market price of Costco common stock on Nasdaq on October 22, 2025.

Remarks:

Exhibit 24: Power of Attorney provided herewith.