FALSE COSTCO WHOLESALE CORP /NEW 0000909832 0000909832 2025-09-25 2025-09-25
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of Earliest Event Reported): September 25, 2025

COSTCO WHOLESALE CORPORATION
(Exact name of registrant as specified in its charter)

Washington |  | 0-20355 |  | 91-1223280
(State or other jurisdiction of incorporation) |  | (Commission File No.) |  | (I.R.S. Employer Identification No.)

999 Lake Drive
Issaquah, WA 98027
(Address of principal executive offices and zip code)
Registrant’s telephone number, including area code: 425-313-8100

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐ | Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ | Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ | Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ | Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class |  | Trading Symbol(s) |  | Name of each exchange on which registered
Common Stock, par value $.005 per share |  | COST |  | NASDAQ

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).
Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 2.02. Results of Operations and Financial Condition
On September 25, 2025, the Company issued a press release containing its operating results for the 16-week fourth quarter and the 52-week fiscal year, ended August 31, 2025. A copy of the press release is attached as Exhibit 99.1. In addition, a copy of the Company's earnings release supplement for the fourth quarter of fiscal 2025 is attached as Exhibit 99.2.
Item 9.01. Financial Statements and Exhibits
(d) Exhibits.
99.1. Press release dated September 25, 2025.
99.2. Fourth quarter fiscal 2025 supplemental information.
104 Cover Page Interactive Data File (embedded within the Inline XBRL document).
SIGNATURE
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 hereunto duly authorized.

|  | COSTCO WHOLESALE CORPORATION
Dated: September 25, 2025 |  | By: | /s/ Gary Millerchip
|  |  | Gary Millerchip
|  |  | Executive Vice President and Chief Financial Officer