Tiffany Marie Barbre - Jul 1, 2025 Form 3 Insider Report for COSTCO WHOLESALE CORP /NEW (COST)

Role
Principal Accounting Officer
Signature
/s/ Alejandro Torres, Attorney-in-Fact
Stock symbol
COST
Transactions as of
Jul 1, 2025
Transactions value $
$0
Form type
3
Date filed
7/10/2025, 04:27 PM
Next filing
Oct 24, 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Barbre Tiffany Marie Principal Accounting Officer 999 LAKE DRIVE, ISSAQUAH /s/ Alejandro Torres, Attorney-in-Fact 2025-07-10 0002076006

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding COST Common Stock 4.82K Jul 1, 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents unvested grants of Restricted Stock Units ("RSUs"). The vesting schedule for the RSUs is as follows: 1,781.702 shares will vest on October 22, 2025; 1,315.458 shares will vest on October 22, 2026; 945.906 shares will vest on October 22, 2027; 560.084 shares will vest on October 22, 2028; and 216 shares will vest on October 22, 2029.

Remarks:

Exhibit 24: Power of Attorney provided herewith.