Company: COST
Filing Date: 2025-12-17
Form Type: 10-Q
Source: 0000909832-25-000169
Chunk: 3

Company: COSTCO WHOLESALE CORP /NEW
Filing Date: 2025-12-17
Form: 10-Q
Item: Item 1A
Chunk 3
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achris and Costco Wholesale Corporationx10.3*2019 Stock Incentive Plan Restricted Stock Unit Award Agreement - U.S. Employee (for awards granted beginning in October 2025)x10.4*2019 Stock Incentive Plan Restricted Stock Unit Award Agreement - Non-U.S. Employee (for awards granted beginning in October 2025)x31.1Rule 13(a) – 14(a) Certificationsx32.1**Section 1350 Certifications101.INSInline XBRL Instance Documentx101.SCHInline XBRL Taxonomy Extension Schema Documentx101.CALInline XBRL Taxonomy Extension Calculation Linkbase Documentx101.DEFInline XBRL Taxonomy Extension Definition Linkbase Documentx101.LABInline XBRL Taxonomy Extension Label Linkbase Documentx101.PREInline XBRL Taxonomy Extension Presentation Linkbase Documentx104Cover Page Interactive Data File (formatted as inline XBRL and contained in Exhibit 101)x_______________

* Management contract, compensatory plan or arrangement.

** Furnished herewith.

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Table of Contents

SIGNATURES

Pursuant to the requirements 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.

COSTCO WHOLESALE CORPORATION(Registrant)December 17, 2025By/s/ RON M. VACHRISDateRon M. VachrisPresident and Chief Executive OfficerDecember 17, 2025By/s/ GARY MILLERCHIPDateGary MillerchipExecutive Vice President and Chief Financial Officer

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