Form 8-K

8-K — COSTCO WHOLESALE CORP /NEW

Accession: 0000909832-26-000041

Filed: 2026-04-15

Period: 2026-04-15

CIK: 0000909832

SIC: 5331 (RETAIL-VARIETY STORES)

Item: Other Events

Item: Financial Statements and Exhibits

Documents

8-K — cost-20260415.htm (Primary)

EX-99.1 (costex9918-k41526.htm)

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8-K

8-K (Primary)

Filename: cost-20260415.htm · Sequence: 1

cost-20260415

FALSECOSTCO WHOLESALE CORP /NEW000090983200009098322026-04-152026-04-15

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): April 15, 2026

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 8.01. Other Events

The Board of Directors declared a quarterly cash dividend on the Company's common stock and approved a quarterly increase from $1.30 to $1.47 per share, $5.88 on an annualized basis. The dividend was declared on April 15, 2026, and is payable May 15, 2026, to shareholders of record at the close of business on May 1, 2026.

Item 9.01. Financial Statements and Exhibits

(d) Exhibits.

99.1. Press release dated April 15, 2026.

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: April 15, 2026 By: /s/ Gary Millerchip

Gary Millerchip

Executive Vice President and Chief Financial Officer

EX-99.1

Filename: costex9918-k41526.htm · Sequence: 2

Document

Exhibit 99.1

Press Release

COSTCO WHOLESALE CORPORATION ANNOUNCES AN INCREASE IN ITS QUARTERLY CASH DIVIDEND

ISSAQUAH, Wash., April 15, 2026 - Costco Wholesale Corporation (“Costco” or the “Company”) (Nasdaq: COST) today announced that its Board of Directors has declared a quarterly cash dividend on Costco common stock and approved a quarterly increase from $1.30 to $1.47 per share, $5.88 on an annualized basis. The quarterly dividend is payable May 15, 2026, to shareholders of record at the close of business on May 1, 2026.

Costco currently operates 928 warehouses, including 637 in the United States and Puerto Rico, 115 in Canada, 42 in Mexico, 37 in Japan, 29 in the United Kingdom, 20 in Korea, 15 in Australia, 14 in Taiwan, seven in China, five in Spain, three in France, two in Sweden, and one each in Iceland, and New Zealand. Costco also operates e-commerce sites in the U.S., Canada, the U.K., Mexico, Korea, Taiwan, Japan and Australia.

Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. For these purposes, forward-looking statements are statements that address activities, events, conditions or developments that the Company expects or anticipates may occur in the future. In some cases forward-looking statements can be identified because they contain words such as “anticipate,” “believe,” “continue,” “could,” “estimate,” “expect,” “intend,” “likely,” “may,” “might,” “plan,” “potential,” “predict,” “project,” “seek,” “should,” “target,” “will,” “would,” or similar expressions and the negatives of those terms. Such forward-looking statements involve risks and uncertainties that may cause actual events, results or performance to differ materially from those indicated by such statements. These risks and uncertainties include, but are not limited to, domestic and international economic conditions, including exchange rates, inflation or deflation, the effects of competition and regulation, uncertainties in the financial markets, consumer and small business spending patterns and debt levels, breaches of security or privacy of member or business information, conditions affecting the acquisition, development, ownership or use of real estate, capital spending, actions of vendors, rising costs associated with employees (generally including health-care costs and wages), workforce interruptions, energy and certain commodities, geopolitical conditions (including tariffs and global conflicts), the ability to maintain effective internal control over financial reporting, regulatory and other impacts related to environmental and social matters, public-health related factors, and other risks identified from time to time in the Company’s public statements and reports filed with the Securities and Exchange Commission. Forward-looking statements speak only as of the date they are made, and the Company does not undertake to update these statements, except as required by law. Comparable sales and comparable sales excluding impacts from changes in gasoline prices and foreign exchange are intended as supplemental information and are not a substitute for net sales presented in accordance with U.S. GAAP.

CONTACTS: Costco Wholesale Corporation

Josh Dahmen, 425/313-8254

Andrew Yoon, 425/313-6305

COST-Comp

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