Rivian CAO sells 15,000 shares at $16.29

Rivian’s chief administrative officer reported a Rule 10b5-1–planned sale of 15,000 Class A shares, retaining over 1.0 million shares afterward.

Rhea-AI Filing Summary

Rivian Automotive, Inc. (RIVN) reported that Chief Administrative Officer Michael John Callahan sold 15,000 shares of Class A common stock on September 11, 2026, at a weighted average price of $16.2927 per share in multiple trades between $16.175 and $16.52, pursuant to a Rule 10b5-1 trading plan adopted on June 12, 2026. After this sale, he directly holds 1,016,776 shares of Class A common stock.

Insider Trade Summary 10b5-1

Net Seller: 15,000 shares

Net Sell 1 txn

Insider CALLAHAN MICHAEL JOHN

Role Chief Administrative Officer

Sold 15,000 shs ($244K)

Type	Security	Shares	Price	Value
Sale	Class A Common Stock F1, F2	15,000	$16.2927	$244K

Holdings After Transaction: Class A Common Stock — 1,016,776 shares (Direct)

Footnotes (2)

1. F1. The sale reported in this transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 12, 2026, as described in the Issuer's Quarterly Report on Form 10-Q for the three months ended June 30, 2026, filed with the Securities and Exchange Commission on July 30, 2026.
2. F2. The price reported is a weighted average sale price. The shares were sold in multiple transactions at prices ranging from $16.175 to $16.52, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Key Figures

Shares sold: 15,000 shares Weighted average sale price: $16.2927 per share Sale price range: $16.175 to $16.52 per share +3 more

6 metrics

Shares sold 15,000 shares Class A common stock sold by Chief Administrative Officer on September 11, 2026

Weighted average sale price $16.2927 per share Average price for the 15,000 shares sold on September 11, 2026

Sale price range $16.175 to $16.52 per share Price range of multiple sale transactions on September 11, 2026

Shares held after transaction 1,016,776 shares Direct holdings of Class A common stock by Michael John Callahan after the sale

Rule 10b5-1 plan adoption date June 12, 2026 Date on which the trading plan governing this sale was adopted

Related Form 10-Q filing date July 30, 2026 Date the Form 10-Q describing the trading plan was filed

Key Terms

Rule 10b5-1 trading plan, weighted average sale price, Class A common stock

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 on June 12, 2026"

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.

weighted average sale price financial

"The price reported is a weighted average sale price"

Class A common stock financial

"The shares were sold in multiple transactions at prices ranging"

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.

FAQ

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

What insider transaction did RIVN report for Michael John Callahan?

Rivian reported that Chief Administrative Officer Michael John Callahan sold 15,000 shares of Class A common stock on September 11, 2026, in an open-market or private transaction, as disclosed in a Form 4 filing.

At what price were Michael John Callahan’s RIVN shares sold?

The shares were sold at a weighted average price of $16.2927 per share, in multiple transactions at prices ranging from $16.175 to $16.52, inclusive.

How many RIVN shares does Michael John Callahan hold after this transaction?

Following the sale, Michael John Callahan directly holds 1,016,776 shares of Rivian Class A common stock, as reported in the Form 4.

Was the RIVN insider sale made under a Rule 10b5-1 trading plan?

Yes. The filing states the sale was made pursuant to a Rule 10b5-1 trading plan adopted by Michael John Callahan on June 12, 2026.

What role does Michael John Callahan hold at RIVN?

Michael John Callahan is Rivian Automotive, Inc.’s Chief Administrative Officer, as identified in the Form 4 reporting this transaction.

Where is the Rule 10b5-1 plan for the RIVN insider sale described?

The Rule 10b5-1 trading plan adopted on June 12, 2026, is described in Rivian’s Quarterly Report on Form 10-Q for the three months ended June 30, 2026, filed on July 30, 2026.

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

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Available on EDGAR 09/16/2026 - 06:03 AM Accepted by SEC EDGAR 09/16/2026 - 06:00 AM Learn about SEC filing dates

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).

X

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^*

CALLAHAN MICHAEL JOHN

(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 Administrative Officer

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
09/11/2026

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)
			Code	V	Amount	(A) or (D)	Price
Class A Common Stock	09/11/2026		S(1)		15,000	D	$16.2927(2)	1,016,776	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

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 June 12, 2026, as described in the Issuer's Quarterly Report on Form 10-Q for the three months ended June 30, 2026, filed with the Securities and Exchange Commission on July 30, 2026.

2. The price reported is a weighted average sale price. The shares were sold in multiple transactions at prices ranging from $16.175 to $16.52, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

Remarks:

	/s/ Jamie Chung, Attorney-in-Fact	09/15/2026
	** 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)