Item 16. Form 10-K Summary

None.

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

October 7, 2025


			COSTCO WHOLESALE CORPORATION (Registrant)

			By						/s/ GARY MILLERCHIP
									Gary Millerchip Executive Vice President and Chief Financial Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated.

October 7, 2025


By	/s/ RON M. VACHRIS	By	/s/ HAMILTON E. JAMES
	Ron M. Vachris Chief Executive Officer, President and Director		Hamilton E. James Chairman of the Board

By	/s/ GARY MILLERCHIP	By	/s/ TIFFANY M. BARBRE
	Gary Millerchip Executive Vice President and Chief Financial Officer (Principal Financial Officer)		Tiffany M. Barbre Senior Vice President and Corporate Controller (Principal Accounting Officer)

By	/s/ SUSAN L. DECKER	By	/s/ KENNETH D. DENMAN
	Susan L. Decker Director		Kenneth D. Denman Director

By	/s/ HELENA B. FOULKES		/s/ SALLY JEWELL
	Helena B. Foulkes Director		Sally Jewell Director

By	/s/ JEFFREY S. RAIKES	By	/s/ JOHN W. STANTON
	Jeffrey S. Raikes Director		John W. Stanton Director

By	/s/ MARY (MAGGIE) A. WILDEROTTER
	Mary (Maggie) A. Wilderotter Director

Previous: Item 15. Exhibits, Financial Statement Schedules