COSTCO WHOLESALE CORP /NEW (COST) · 3/A SEC Filing

=== SEC Form 3/A — Statement of Changes in Beneficial Ownership === Document Type: 3/A Period of Report: 2026-03-02 --- Issuer --- Name: COSTCO WHOLESALE CORP /NEW (COST) CIK: 0000909832 --- Reporting Owner --- Name: George Sarah Catherine CIK: 0002112687 Role: Officer (Executive Vice President) --- Holdings --- [Holding #1] Security: Common Stock Ownership: D (Direct) Footnotes: [F1] Includes 2,726.578 shares of common stock that are unvested grants of Restricted Stock Units ("RSUs") that due to an administrative error were omitted from the reporting person's original Form 3, filed on March 11, 2026. The vesting schedule for the RSUs is as follows: 1,015.942 shares will vest on October 22, 2026; 769.586 shares will vest on October 22, 2027; 514.05 shares will vest on October 22, 2028; and 427 shares will vest on October 22, 2029. --- Footnotes (Complete Index) --- F1: Includes 2,726.578 shares of common stock that are unvested grants of Restricted Stock Units ("RSUs") that due to an administrative error were omitted from the reporting person's original Form 3, filed on March 11, 2026. The vesting schedule for the RSUs is as follows: 1,015.942 shares will vest on October 22, 2026; 769.586 shares will vest on October 22, 2027; 514.05 shares will vest on October 22, 2028; and 427 shares will vest on October 22, 2029. --- Signature --- /s/ /s/ Alejandro Torres, Attorney-in-Fact (2026-05-15)