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COST · Current Report (Form 8-K) · Filed December 11, 2025

Costco Wholesale Corp — Current Report (Form 8-K)

Form
8-K
Filed
December 11, 2025
Period
Dec 11, 2025
Ticker
COST
Accession
0000909832-25-000164
Boardroom Alpha · Filing insights

Costco reports Q1 FY2026 results for the quarter ended Nov 23, 2025; press release and supplement attached.

About Costco Wholesale Corp
Market cap
$423.4B
1Y TSR
+1.8%
3Y TSR
+26.6%
Board grade
B
Sector
Consumer Defensive
CEO
Ron M Vachris
Last annual meeting: Jan 15, 2026 · View full Costco Wholesale Corp profile →
cost-20251211


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): December 11, 2025

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

Washington0-2035591-1223280
(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 classTrading Symbol(s)Name of each exchange on which registered
Common Stock, par value $.005 per shareCOSTNASDAQ

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 December 11, 2025, the Company issued a press release containing its operating results for the first quarter (twelve weeks) of fiscal 2026, ended November 23, 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 first quarter of fiscal 2026 is attached as Exhibit 99.2.
Item 9.01.    Financial Statements and Exhibits

(d) Exhibits.

99.1.    Press release dated December 11, 2025.
99.2.    First quarter fiscal 2026 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: December 11, 2025By:/s/ Gary Millerchip
Gary Millerchip
Executive Vice President and Chief Financial Officer

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Reference

Frequently asked questions

When did Costco Wholesale Corp file this 8-K?
Costco Wholesale Corp (COST) filed this Current Report (Form 8-K) with the SEC on December 11, 2025. The accession number assigned by EDGAR is 0000909832-25-000164.
What does an 8-K disclose?
Form 8-K is the SEC's current-report form, used to disclose material events between periodic reports (10-K / 10-Q). Triggers include CEO/CFO departures, acquisitions, bankruptcies, earnings releases, auditor changes, changes in fiscal year, and amendments to corporate governance. Each 8-K is keyed to one or more Item numbers (1.01 through 9.01).
What is the key takeaway from this filing?
Costco reports Q1 FY2026 results for the quarter ended Nov 23, 2025; press release and supplement attached. This is Boardroom Alpha's one-line summary of the current report; see the full filing text above for the formal disclosure.
What Item codes does an 8-K cover?
An 8-K's Item codes (1.01 through 9.01) specify what kind of event is being disclosed — e.g. Item 1.01 for entering a material agreement, Item 5.02 for departure/election of directors and executive officers, Item 8.01 for other events. The Item codes for this 8-K appear in the filing text above.
Where can I find Costco Wholesale Corp's prior current reports on EDGAR?
The SEC EDGAR browser lists every 8-K Costco Wholesale Corp has filed under CIK 909832, sortable by date. Use the "View on SEC EDGAR" link in the page header, or browse directly via https://www.sec.gov/cgi-bin/browse-edgar.
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