Costco | 144: Notice of proposed sale of securities pursuant to Rule 144

The Susan L Decker Trust, associated with a Director of Costco Wholesale Corporation, has filed notice to sell 458 shares of common stock on January 16, 2026. The total market value of the planned transaction is $437,390.The shares to be sold were originally acquired on October 22, 2025, as Performance Stock Units granted by the issuer as compensation. The trust has reported no other securities sales during the past three months.

The Susan L Decker Trust, associated with a Director of Costco Wholesale Corporation, has filed notice to sell 458 shares of common stock on January 16, 2026. The total market value of the planned transaction is $437,390.The shares to be sold were originally acquired on October 22, 2025, as Performance Stock Units granted by the issuer as compensation. The trust has reported no other securities sales during the past three months.