Costco files an 8-K on director or officer changes and other events

Costco filed a Form 8-K on Nov 10, 2026 at 4:16 PM ET under Item 5.02 (Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers), Item 8.01 (Other Events).

Under Item 5.02, the filing says: “On November 7, 2026, Helena B. Foulkes notified the Board of Directors (the “Board”) of Costco Wholesale Corporation (the “Company”) of her decision to resign from the Board and all committees of the Board of which she is a member, effective November 7, 2026.”

Under Item 8.01, the filing says: “On November 10, 2026, the Board of Directors declared a special cash dividend on the Company's common stock of $30 per share, payable December 4, 2026, to shareholders of record at the close of business on November 24, 2026.”

The filing attaches material as Exhibit 99.1.