Was the Rivian (RIVN) CFO’s 8,023-share sale part of a 10b5-1 plan?

Yes. The filing states the 8,023-share sale was executed under a Rule 10b5-1 trading plan. The plan was adopted on September 2, 2025, meaning the transaction was pre-scheduled rather than made at the CFO’s sole discretion.

Rivian (NASDAQ: RIVN) CFO 10b5-1 sale of 8,023 shares disclosed

Q: What type of security did the Rivian (RIVN) Form 4 transaction involve?

The transaction involved Rivian’s Class A Common Stock. CFO Claire McDonough executed an open-market sale of 8,023 Class A shares at $16.00 per share, as reported in the Form 4 filing with the SEC.

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 8,023 shares of Class A common stock at $16.00 per share on May 29, 2026. After this transaction, she directly holds 887,007 shares.

The filing notes that this sale was carried out under a pre-arranged Rule 10b5-1 trading plan adopted on September 2, 2025, indicating it was scheduled in advance rather than timed opportunistically.

Insider Trade Summary 10b5-1

Net Seller: 8,023 shares ($128,368)

Net Sell 1 txn

Insider McDonough Claire

Role Chief Financial Officer

Sold 8,023 shs ($128K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock	8,023	$16.00	$128K

Holdings After Transaction: Class A Common Stock — 887,007 shares (Direct, null)

Footnotes (1)

[object Object]

Key Figures

Shares sold: 8,023 shares Sale price: $16.00 per share Shares held after transaction: 887,007 shares

3 metrics

Shares sold 8,023 shares Open-market sale on May 29, 2026

Sale price $16.00 per share Price for Class A Common Stock sold

Shares held after transaction 887,007 shares Direct Class A holdings following the sale

Key Terms

Rule 10b5-1 trading plan, open-market sale, Form 10-Q, Class A Common Stock

4 terms

Rule 10b5-1 trading plan regulatory

"The sale reported in this transaction was effected pursuant to a Rule 10b5-1 trading plan..."

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" for 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.

Form 10-Q regulatory

"as described in the Issuer's Quarterly Report on Form 10-Q for the three months ended..."

A Form 10-Q is a detailed report that publicly traded companies are required to file with regulators three times a year, providing an update on their financial health and business activities. It is important for investors because it offers timely insights into a company's performance, helping them make informed decisions about buying or selling stocks. Think of it as a regular check-up report that shows how well a company is doing.

Class A Common Stock financial

"security_title: "Class A Common Stock""

Class A common stock is a category of a company’s shares that carries a specific set of ownership rights—most commonly defined voting power and claims on dividends—set out in the company’s charter. For investors it matters because the class determines how much influence you have over corporate decisions, the share’s likely dividend and trading behavior, and how it compares in value to other share classes, like choosing a particular seat with different privileges at the company’s decision-making table.

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Form 4 Insider Transactions: What Each Field Means →

06/02/2026 - 04:20 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)
05/29/2026

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	05/29/2026		S⁽¹⁾		8,023	D	$16	887,007	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	06/02/2026
	** 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) disclose for Claire McDonough?

Rivian disclosed that CFO Claire McDonough sold 8,023 Class A shares at $16.00 each. The open-market sale occurred on May 29, 2026, and was reported on a Form 4 insider trading filing with the Securities and Exchange Commission.

How many Rivian (RIVN) shares does the CFO hold after this Form 4 sale?

After the reported sale, CFO Claire McDonough directly holds 887,007 Rivian Class A shares. This figure reflects her remaining ownership following the 8,023-share open-market transaction disclosed in the Form 4 insider filing.

At what price did Rivian (RIVN) CFO Claire McDonough sell her shares?

Claire McDonough sold 8,023 Rivian Class A shares at $16.00 per share. The sale was classified as an open-market transaction and is documented in the company’s Form 4 insider trading report.

What type of security did the Rivian (RIVN) Form 4 transaction involve?

The transaction involved Rivian’s Class A Common Stock. CFO Claire McDonough executed an open-market sale of 8,023 Class A shares at $16.00 per share, as reported in the Form 4 filing with the SEC.