Costco former officer proposes $2.74M stock sale

Available on EDGAR 11/12/2026 - 01:06 PM EST Accepted by SEC EDGAR 11/12/2026 - 01:06 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Costco Wholesale Corp. (COST) is named as issuer in a notice reporting a proposed sale of 2,500 common shares for former officer James C. Klauer. The proposed sale is listed for approximately November 12, 2026, through Fidelity Brokerage Services LLC, with an aggregate market value of $2,737,925. The shares were acquired from Costco through restricted stock vesting on October 22, 2026, as compensation.

Key Figures

Common shares proposed for sale: 2,500 shares Aggregate market value: $2,737,925 Common shares outstanding: 443,129,349 shares

3 metrics

Common shares proposed for sale 2,500 shares Proposed sale for former officer James C. Klauer

Aggregate market value $2,737,925 Shares proposed for sale

Common shares outstanding 443,129,349 shares Outstanding share count stated in the notice

Key Terms

Restricted Stock Vesting

1 terms

Restricted Stock Vesting financial

"Nature of Acquisition Transaction: Restricted Stock Vesting"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many Costco (COST) shares does former officer James C. Klauer propose to sell?

Former officer James C. Klauer is associated with a proposed sale of 2,500 Costco common shares, with an approximate sale date of November 12, 2026 and an aggregate market value of $2,737,925.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001729360
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	COSTCO WHOLESALE CORP /NEW
SEC File Number	000-20355
Address of Issuer	999 LAKE DRIVE ISSAQUAH WASHINGTON 98027-
Phone	4253138100
Name of Person for Whose Account the Securities are To Be Sold	Klauer James C
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Former Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	2500	2737925.00	443129349	11/12/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	10/22/2026	Restricted Stock Vesting	Issuer			2500	10/22/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	11/12/2026
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for James C. Klauer.
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)