Rivian officer Callahan proposes $225K share sale

The proposed shares are identified as restricted stock received from Rivian in two lots during 2023.

Rhea-AI Filing Summary

Rivian Automotive, Inc. officer Michael J. Callahan proposes to sell 15,000 common shares for an aggregate market value of $225,000, with an approximate sale date of October 1, 2026. The proposed shares are listed as restricted stock received from Rivian in lots of 4,833 shares on August 15, 2023, and 10,167 shares on November 15, 2023; Morgan Stanley Smith Barney LLC is named as broker and NASDAQ as the exchange. Callahan also reported a sale of 15,000 common shares on September 11, 2026, for $244,390.50.

Key Figures

Proposed sale: 15,000 common shares Aggregate market value: $225,000 Reported sale: 15,000 common shares +3 more

6 metrics

Proposed sale 15,000 common shares Approximate sale date: October 1, 2026

Aggregate market value $225,000 Proposed sale

Reported sale 15,000 common shares September 11, 2026

Aggregate market value $244,390.50 Reported sale on September 11, 2026

Restricted stock lot 4,833 shares Received from Rivian on August 15, 2023

Restricted stock lot 10,167 shares Received from Rivian on November 15, 2023

Key Terms

Rule 144, Restricted Stock, Securities To Be Sold

3 terms

Rule 144 regulatory

"paragraph (e) of Rule 144"

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock financial

"Restricted Stock | Issuer"

Shares granted to an individual that carry limits on transfer or sale until certain conditions are met, such as staying with the company for a set time or hitting performance targets. Think of them as a locked gift that gradually opens; for investors they matter because they affect how many shares may enter the market later, signal management incentives and potential dilution, and reveal confidence in future company performance.

Securities To Be Sold regulatory

"144: Securities To Be Sold"

FAQ

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

How many RIVN shares does Michael J. Callahan plan to sell?

Michael J. Callahan, an officer of Rivian Automotive, plans to sell 15,000 common shares for an aggregate market value of $225,000, with an approximate sale date of October 1, 2026.

How many RIVN shares did Michael J. Callahan sell in the prior three months?

Callahan reported selling 15,000 common shares on September 11, 2026, for $244,390.50.

What shares does Michael J. Callahan plan to sell?

The proposed shares are listed as restricted stock received from Rivian in two lots: 4,833 shares on August 15, 2023, and 10,167 shares on November 15, 2023.

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

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Available on EDGAR 10/01/2026 - 04:26 PM Accepted by SEC EDGAR 10/01/2026 - 04:25 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	0001262742
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	RIVIAN AUTOMOTIVE, INC.
SEC File Number	001-41042
Address of Issuer	14600 MYFORD ROAD IRVINE CALIFORNIA 92606
Phone	(888) 748-4261
Name of Person for Whose Account the Securities are To Be Sold	MICHAEL J CALLAHAN
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	15000	225000.00	1443948130	10/01/2026	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	08/15/2023	Restricted Stock	Issuer			4833	08/15/2023	Not Applicable
Common	11/15/2023	Restricted Stock	Issuer			10167	11/15/2023	Not Applicable

* 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
MICHAEL J CALLAHAN 14600 MYFORD ROAD IRVINE CA 92606	Common	09/11/2026	15000	244390.50

144: Remarks and Signature

Remarks
Date of Notice	10/01/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	06/12/2026
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/ Michael Callahan
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)