Was the Rivian (RIVN) CFO’s share sale under a Rule 10b5-1 trading plan?

Yes. The filing states the sale was executed pursuant to a Rule 10b5-1 trading plan. The plan was adopted by Claire McDonough on September 2, 2025, as described in Rivian’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2025.

Rivian (NASDAQ: RIVN) CFO trades 7,600 shares, still holds 895,030

Filing Impact

(High)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Rivian Automotive Chief Financial Officer Claire McDonough reported an open-market sale of 7,600 shares of Class A common stock at $14.00 per share on May 21, 2026. After this transaction, she continues to hold 895,030 shares directly. The sale was executed under a pre-arranged Rule 10b5-1 trading plan adopted on September 2, 2025.

Insider Trade Summary 10b5-1

Net Seller: 7,600 shares ($106,400)

Net Sell 1 txn

Insider McDonough Claire

Role Chief Financial Officer

Sold 7,600 shs ($106K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	7,600	$14.00	$106K

Holdings After Transaction: Class A Common Stock — 895,030 shares (Direct, null)

Footnotes (1)

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Key Figures

Shares sold: 7,600 shares Sale price: $14.00 per share Shares held after sale: 895,030 shares +1 more

4 metrics

Shares sold 7,600 shares Class A common stock sold on May 21, 2026

Sale price $14.00 per share Open-market sale transaction price

Shares held after sale 895,030 shares Direct ownership after May 21, 2026 transaction

Rule 10b5-1 plan adoption date September 2, 2025 Pre-arranged trading plan governing this sale

Key Terms

Rule 10b5-1 trading plan, open-market sale, Quarterly Report on Form 10-Q

3 terms

Rule 10b5-1 trading plan regulatory

"The sale reported in this transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

open-market sale financial

"transaction_action: open-market sale of Class A Common Stock"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Quarterly Report on Form 10-Q regulatory

"as described in the Issuer's Quarterly Report on Form 10-Q for the three months ended September 30, 2025"

A quarterly report on Form 10-Q is a standardized financial filing public companies must submit to U.S. regulators every three months, summarizing recent financial results, cash flows, balance sheet changes, operations and material risks or legal developments. Investors treat it like a company report card that shows up-to-date facts rather than marketing copy, helping them track performance, spot trends, reassess risk and make buy or sell decisions.

Form 4 Insider Transactions: What Each Field Means →

05/22/2026 - 04:07 PM

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

McDonough Claire

(Last)

(First)

(Middle)

C/O RIVIAN AUTOMOTIVE, INC.

14600 MYFORD ROAD

(Street)

IRVINE

CALIFORNIA

92606

(City)

(State)

(Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
Rivian Automotive, Inc. / DE [ RIVN ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	Chief Financial Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Class A Common Stock	05/21/2026		S⁽¹⁾		7,600	D	$14	895,030	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The sale reported in this transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 2, 2025, as described in the Issuer's Quarterly Report on Form 10-Q for the three months ended September 30, 2025, filed with the Securities and Exchange Commission on November 4, 2025.

Remarks:

	/s/ Jamie Chung, Attorney-in-Fact	05/22/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR

FAQ

What insider transaction did Rivian (RIVN) CFO Claire McDonough report?

Rivian CFO Claire McDonough reported an open-market sale of Class A common stock. She sold 7,600 shares on May 21, 2026 at $14.00 per share, and the transaction was disclosed in a Form 4 insider trading report.

How many Rivian (RIVN) shares did the CFO sell and at what price?

Claire McDonough sold 7,600 shares of Rivian Class A common stock. The shares were sold in an open-market transaction at a price of $14.00 per share, as reported in the Form 4 filing for the May 21, 2026 transaction date.

How many Rivian (RIVN) shares does the CFO hold after this sale?

Following the reported sale, Claire McDonough directly holds 895,030 shares of Rivian Class A common stock. This post-transaction ownership figure comes from the Form 4, which lists total shares beneficially owned after the May 21, 2026 open-market sale.

What type of Rivian (RIVN) security did the CFO sell and on what date?

The transaction involved Rivian Class A common stock. Claire McDonough sold 7,600 shares in an open-market sale on May 21, 2026, according to the Form 4 insider report detailing this non-derivative equity transaction.

Does this Rivian (RIVN) Form 4 show any options or other derivatives for the CFO?

The Form 4 data provided shows no derivative transactions for this report. The derivative summary is empty, indicating no listed options, warrants, or other derivative securities were exercised, converted, or otherwise transacted in this particular filing.