RIVN insider files Form 144 to sell 8,023 shares

RIVN proposed the sale of 8,023 shares of Common Stock in a Form 144 notice, listed as Restricted Stock to be sold through Morgan Stanley Smith Barney LLC.

Rhea-AI Filing Summary

RIVN proposed the sale of 8,023 shares of Common Stock in a Form 144 notice, listed as Restricted Stock to be sold through Morgan Stanley Smith Barney LLC. The filing lists multiple recent dispositions by Claire R. McDonough, including sales on 05/21/2026 and 05/18/2026.

Insights

Securities Compliance Specialist

Form 144 notice records a proposed restricted-stock sale and recent insider dispositions.

The filing lists 8,023 shares of Common Stock described as Restricted Stock to be sold through Morgan Stanley Smith Barney LLC, with the transaction date shown as 05/15/2026. The entry labels the broker and lists NASDAQ as the trading market.

The excerpt also documents prior sales by Claire R. McDonough, with transactions of 7,600 shares on 05/21/2026 and 5,544 shares on 05/18/2026. Cash‑flow treatment and any conditional qualifiers are not stated in the provided excerpt.

Key Figures

Proposed sale: 8,023 shares Market listed: NASDAQ Sale — 05/21/2026: 7,600 shares +2 more

5 metrics

Proposed sale 8,023 shares Restricted Stock to be sold, <date>05/15/2026</date>

Market listed NASDAQ Securities information line dated <date>05/29/2026</date>

Sale — 05/21/2026 7,600 shares Disposition by Claire R. McDonough on <date>05/21/2026</date>

Sale — 05/18/2026 5,544 shares Disposition by Claire R. McDonough on <date>05/18/2026</date>

Sale — 04/22/2026 10,245 shares Disposition by Claire R. McDonough on <date>04/22/2026</date>

Key Terms

Restricted Stock, Form 144, Morgan Stanley Smith Barney LLC

3 terms

Restricted Stock regulatory

"Common | 05/15/2026 | Restricted Stock"

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.

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.

Morgan Stanley Smith Barney LLC financial

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

FAQ

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

What does the RIVN Form 144 report show?

The notice reports a proposed sale of 8,023 shares of Common Stock described as Restricted Stock to be sold through Morgan Stanley Smith Barney LLC on 05/15/2026. It lists recent insider dispositions by Claire R. McDonough.

Who is the named seller in the RIVN excerpt?

Claire R. McDonough is the named individual with recent sales recorded on 05/21/2026, 05/18/2026, and 04/22/2026 in the provided excerpt.

How many shares did Claire R. McDonough sell recently according to the filing?

The excerpt lists dispositions of 7,600 shares on 05/21/2026 and 5,544 shares on 05/18/2026, plus 10,245 shares on 04/22/2026, with dollar amounts shown alongside each sale.

Does the excerpt state who receives the sale proceeds for the RIVN shares?

Cash‑flow treatment is not specified in the provided excerpt; the record shows the broker (Morgan Stanley Smith Barney LLC) and the listed security but does not state proceeds recipients.

What market is listed for the proposed RIVN sale?

The excerpt identifies NASDAQ as the market listed alongside the securities information for the proposed sale on 05/29/2026.

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

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Accepted by SEC EDGAR 05/29/2026 - 04:10 PM EDT 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	0001890925
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	CLAIRE R MCDONOUGH
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	8023	128368.00	1256505294	05/29/2026	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	05/15/2026	Restricted Stock	ISSUER			8023	05/15/2026	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
CLAIRE R MCDONOUGH 14600 MYFORD ROAD IRVINE CA 92606	Common	05/21/2026	7600	106400.00
CLAIRE R MCDONOUGH 14600 MYFORD ROAD IRVINE CA 92606	Common	05/18/2026	5544	74481.19
CLAIRE R MCDONOUGH 14600 MYFORD ROAD IRVINE CA 92606	Common	04/22/2026	10245	184410.00

144: Remarks and Signature

Remarks
Date of Notice	05/29/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/02/2025
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/ Claire Raun McDonough
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)