Costco insider plans sale of 1,500 shares

Costco Wholesale’s affiliate has filed a notice to sell restricted shares.

Rhea-AI Filing Summary

Costco Wholesale’s affiliate has filed a notice to sell restricted shares. A holder plans to sell 1,500 shares of Costco common stock through Morgan Stanley Smith Barney on the NASDAQ, with an aggregate market value listed as $1,374,480. The filing notes that 443,869,411 shares of the issuer’s common stock are outstanding.

The 1,500 shares were acquired on September 15, 2023 as restricted stock vesting under a registered plan from the issuer, with services rendered identified as the form of payment. Before selling, the person for whose account the shares are to be sold represents that they are not aware of any undisclosed material adverse information about Costco’s current or prospective operations.

FAQ

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

What does the latest Form 144 indicate for COST shareholders?

The notice shows a holder of Costco (COST) common stock plans to sell 1,500 shares on the NASDAQ through Morgan Stanley Smith Barney, with an aggregate market value of $1,374,480 listed for the proposed sale.

How many Costco (COST) shares are involved in this planned sale?

The Form 144 discloses a proposed sale of 1,500 shares of Costco common stock, to be sold through Morgan Stanley Smith Barney LLC on the NASDAQ market.

How were the Costco (COST) shares being sold under this Form 144 acquired?

The 1,500 Costco shares were acquired on September 15, 2023 as restricted stock vesting under a registered plan from the issuer, with services rendered identified as the form of payment.

How many Costco (COST) shares are outstanding according to this notice?

The notice states that Costco has 443,869,411 shares of common stock outstanding, providing context for the size of the planned 1,500‑share sale.

What assurance does the seller provide about Costco’s undisclosed information?

By signing the notice, the person for whose account the securities will be sold represents that they do not know of any material adverse information about Costco’s current or prospective operations that has not been publicly disclosed.

Which broker and exchange are named for the Costco (COST) share sale?

The Form 144 lists Morgan Stanley Smith Barney LLC Executive Financial Services as broker and names NASDAQ as the securities exchange for the planned sale of Costco common stock.

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

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Accepted by SEC EDGAR 01/09/2026 - 04:38 PM Learn about SEC filing dates

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	0001729741
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 CORPORATION
SEC File Number	000-20355
Address of Issuer	999 Lake Drive Issaquah WASHINGTON 98027
Phone	425-313-8100
Name of Person for Whose Account the Securities are To Be Sold	THE MILLER FAMILY TRUST
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	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	Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza 8th Floor New York NY 10004	1500	1374480.00	443869411	01/09/2026	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	09/15/2023	Restricted stock vesting under a registered plan	Issuer			1500	09/15/2023	Services Rendered

* 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	01/09/2026
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/ Russell D Miller
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)