General Motors (NYSE: GM) plans 318,448-share insider stock sale

Rhea-AI Filing Summary

Morgan Stanley Smith Barney LLC Executive Financial Services filed to sell 318,448 shares of GM common stock, with an indicated aggregate value of $27,717,713.92, through the NYSE on July 28, 2026. The planned sales relate to an exercise of stock options dated July 28, 2026 and performance stock units dated February 14, 2020. The filing also lists multiple Rule 10b5-1 sales for Mary Barra over the prior three months, including transactions on May 26–28, 2026 and June 9, 16, and July 27, 2026, each specifying shares sold and total proceeds.

Key Figures

Shares planned for sale: 318,448 shares Aggregate value of planned sale: $27,717,713.92 Recent 10b5-1 sale 07/27/2026: 104,361 shares; $8,903,023.75 +5 more

8 metrics

Shares planned for sale 318,448 shares Common stock to be sold on NYSE as of 07/28/2026

Aggregate value of planned sale $27,717,713.92 Value associated with 318,448 GM common shares

Recent 10b5-1 sale 07/27/2026 104,361 shares; $8,903,023.75 Rule 10b5-1 sale of GM common stock for Mary Barra

Recent 10b5-1 sale 06/16/2026 99,239 shares; $8,445,496.92 Rule 10b5-1 sale of GM common stock for Mary Barra

Recent 10b5-1 sale 05/28/2026 134,954 shares; $11,475,341.05 Rule 10b5-1 sale of GM common stock for Mary Barra

Recent 10b5-1 sale 05/26/2026 215,391 shares; $17,233,649.30 Rule 10b5-1 sale of GM common stock for Mary Barra

Equity award date - options 07/28/2026 Exercise of stock options linked to shares to be sold

Equity award date - PSUs 02/14/2020 Performance stock units linked to shares to be sold

Key Terms

Form 144, 10b5-1 Sales, Exercise of Stock Options, Performance Stock Units, +1 more

5 terms

Form 144 regulatory

"144: Securities To Be Sold"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

10b5-1 Sales regulatory

"10b5-1 Sales for MARY BARRA 1240 Woodward Avenue"

10b5-1 sales are pre-arranged stock-trading plans that let company insiders automatically buy or sell shares according to a fixed schedule or formula, even if they later learn confidential information. Think of it as setting up an automatic thermostat for trades: it creates a clear, documented path that can protect insiders from insider-trading accusations and gives investors a signal about predictable insider activity—though it can also simply be a way for insiders to diversify or raise cash.

Exercise of Stock Options financial

"Common | 07/28/2026 | Exercise of Stock Options | Issuer"

Performance Stock Units financial

"Common | 02/14/2020 | Performance Stock Units | Issuer"

Performance stock units are a type of company award that grants employees shares of stock only if certain performance goals are met. They motivate employees to work toward specific company achievements, aligning their interests with those of shareholders. For investors, they can influence a company's future stock supply and reflect management’s confidence in reaching key targets.

Executive Financial Services financial

"Morgan Stanley Smith Barney LLC Executive Financial Services 1 New York Plaza"

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

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Available on EDGAR 07/28/2026 - 04:20 PM Accepted by SEC EDGAR 07/28/2026 - 04:20 PM Learn about SEC filing dates

FAQ

What does GM’s Form 144 filing by Morgan Stanley Smith Barney cover?

The filing covers a planned sale of 318,448 shares of GM common stock with an aggregate value of $27,717,713.92 on the NYSE, linked to stock option exercises and performance stock units.

How many GM (GM) shares are planned for sale under this notice?

The notice lists a planned sale of 318,448 GM common shares. The filing ties this amount to an exercise of stock options dated July 28, 2026 and performance stock units dated February 14, 2020.

What is the aggregate value of GM (GM) shares in the planned Form 144 sale?

The planned sale has an aggregate value of $27,717,713.92. This value is associated with 318,448 GM common shares to be sold on the NYSE as disclosed in the filing.

What GM (GM) equity awards are associated with the proposed sale?

The proposed sale is associated with an exercise of stock options dated July 28, 2026 and performance stock units dated February 14, 2020, indicating the shares originate from these equity compensation awards.

Which recent GM (GM) Rule 10b5-1 sales for Mary Barra are disclosed?

Disclosed Rule 10b5-1 sales for Mary Barra include GM common stock transactions on May 26–29, 2026, June 9 and 16, 2026, and July 27, 2026, each showing specific share counts and dollar proceeds.

Is the GM (GM) Form 144 tied to an exchange listing?

Yes. The shares in the Form 144 are identified as GM common stock to be sold on the NYSE, with the sale date listed as July 28, 2026 and the total share amount of 318,448.

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

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

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

Relationship to Issuer

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	318448	27717713.92	877451541	07/28/2026	NYSE

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	07/28/2026	Exercise of Stock Options	Issuer			210066	07/28/2026	Cash
Common	02/14/2020	Performance Stock Units	Issuer			108382	02/14/2020	N/A

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
10b5-1 Sales for MARY BARRA 1240 Woodward Avenue Detroit MI 48265	Common	07/27/2026	104361	8903023.75
10b5-1 Sales for MARY BARRA 1240 Woodward Avenue Detroit MI 48265	Common	06/16/2026	99239	8445496.92
10b5-1 Sales for MARY BARRA 1240 Woodward Avenue Detroit MI 48265	Common	06/09/2026	20582	1749470.00
10b5-1 Sales for MARY BARRA 1240 Woodward Avenue Detroit MI 48265	Common	05/29/2026	23000	1955000.00
10b5-1 Sales for MARY BARRA 1240 Woodward Avenue Detroit MI 48265	Common	05/28/2026	134954	11475341.05
10b5-1 Sales for MARY BARRA 1240 Woodward Avenue Detroit MI 48265	Common	05/27/2026	103057	8483425.51
10b5-1 Sales for MARY BARRA 1240 Woodward Avenue Detroit MI 48265	Common	05/26/2026	215391	17233649.30

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

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

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)