[144] General Motors Co SEC Filing

Rhea-AI Filing Summary

General Motors filing a Form 144 reports proposed and recent insider sales by Mary Barra. The filing lists planned sales tied to option exercises totaling 252,078 shares (Exercise of Stock Options, 05/28/2026) and shows recent 10b5-1 sales of 103,057 shares on 05/27/2026 for $8,483,425.51 and 215,391 shares on 05/26/2026 for $17,233,649.30.

Insights

Corporate Governance Specialist

Form 144 notifies planned and executed insider dispositions under a Rule 10b5-1 plan.

The excerpt lists 10b5-1 sales executed by Mary Barra on 05/26/2026 and 05/27/2026 with proceeds shown as $17,233,649.30 and $8,483,425.51. It also lists an option exercise sale of 252,078 shares dated 05/28/2026.

Cash‑flow treatment and total holdings after these transactions are not stated in the excerpt; subsequent filings may provide position context and any withholding details.

Key Figures

10b5-1 sale: 215,391 shares Proceeds from 10b5-1 sale: $17,233,649.30 10b5-1 sale: 103,057 shares +4 more

7 metrics

10b5-1 sale 215,391 shares <date>05/26/2026</date>

Proceeds from 10b5-1 sale $17,233,649.30 <date>05/26/2026</date>

10b5-1 sale 103,057 shares <date>05/27/2026</date>

Proceeds from 10b5-1 sale $8,483,425.51 <date>05/27/2026</date>

Planned exercise sale 252,078 shares <date>05/28/2026</date>

Restricted Stock Units listed 5,558 shares Grant date <date>02/11/2017</date>

Performance Stock Units listed 124,500 shares Grant date <date>02/14/2020</date>

Key Terms

10b5-1, Restricted Stock Units, Performance Stock Units

3 terms

10b5-1 regulatory

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

A 10b5-1 plan is a pre-set schedule that lets company insiders buy or sell shares according to written instructions made when they do not possess material, nonpublic information. Think of it as a timed automatic payment for stock trades: it helps insiders avoid accusations of trading on secret information and gives outside investors a clearer signal about whether sales are routine or potentially informative about the company’s prospects.

Restricted Stock Units financial

"Restricted Stock Units | Issuer | | | 5558 | 02/11/2017"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Performance Stock Units financial

"Performance Stock Units | Issuer | | | 124500 | 02/14/2020"

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.

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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
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	382136	32145280.32	901665195	05/28/2026	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	05/28/2026	Exercise of Stock Options	Issuer			252078	05/28/2026	Cash
Common	02/11/2017	Restricted Stock Units	Issuer			5558	02/11/2017	N/A
Common	02/14/2020	Performance Stock Units	Issuer			124500	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	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)