John Christopher Sullivan - 22 Oct 2025 Form 4 Insider Report for COSTCO WHOLESALE CORP /NEW (COST)

Role
Executive VP
Signature
/s/ Alejandro Torres, Attorney-in-Fact
Issuer symbol
COST
Transactions as of
22 Oct 2025
Transactions value $
-$2,374,491
Form type
4
Filing time
24 Oct 2025, 19:30:50 UTC
Previous filing
24 Oct 2024
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Sullivan John Christopher Executive VP 999 LAKE DRIVE, ISSAQUAH /s/ Alejandro Torres, Attorney-in-Fact 24 Oct 2025 0001902272

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction COST Common Stock Award $0 +4.65K +10.22% $0.00 50.2K 22 Oct 2025 Direct F1, F2
transaction COST Common Stock Tax liability -$398K -421 -0.84% $944.68 49.8K 22 Oct 2025 Direct F3
transaction COST Common Stock Tax liability -$541K -573 -1.15% $944.68 49.2K 22 Oct 2025 Direct F3
transaction COST Common Stock Tax liability -$537K -569 -1.16% $944.68 48.6K 22 Oct 2025 Direct F3
transaction COST Common Stock Tax liability -$552K -585 -1.2% $944.68 48K 22 Oct 2025 Direct F3
transaction COST Common Stock Tax liability -$346K -366 -0.76% $944.68 47.7K 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. In addition, under the 2019 Incentive Plan, employees are eligible for accelerated vesting upon the anniversary of their 25th, 30th and 35th years of service.
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:

Exhbit 24: Power of Attorney provided herewith.