[Form 4] Rivian Automotive, Inc. / DE Insider Trading Activity

Rivian Automotive reported that Chief Administrative Officer Michael John Callahan received new equity awards.

Rhea-AI Filing Summary

Rivian Automotive reported that Chief Administrative Officer Michael John Callahan received new equity awards. He was granted stock options on March 20, 2026 for 528,402 shares of Class A Common Stock at an exercise price of $14.91 per share, expiring in 2036. These options vest annually in four equal installments over the next four anniversaries of March 20, 2026.

Callahan also received an award of 264,201 restricted stock units (RSUs), which will vest on each of the next sixteen quarterly anniversaries after February 15, 2026. Each RSU converts into one share of Class A Common Stock. Following this RSU grant, he directly holds 1,114,258 shares of Class A Common Stock.

Insider Trade Summary

Grant/Award: 792,603 shares

Grant/Award 2 txns

Insider CALLAHAN MICHAEL JOHN

Role Chief Administrative Officer

Type	Security	Shares	Price	Value
Grant/Award	Stock Option	528,402	$0.00	$0.00
Grant/Award	Class A Common Stock	264,201	$0.00	$0.00

Holdings After Transaction: Stock Option — 528,402 contracts (Direct); Class A Common Stock — 1,114,258 shares (Direct)

Footnotes (2)

1. F1. Represents an award of 264,201 restricted stock units ("RSUs") which will vest on each of the next sixteen quarterly anniversaries after February 15, 2026. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock and has no expiration date.
2. F2. The stock option will vest annually as to 25% of the underlying shares over the next four anniversaries of March 20, 2026.

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Accepted by SEC EDGAR 03/24/2026 - 04:40 PM EDT 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).

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)
03/20/2026

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	03/20/2026		A		264,201(1)	A	$0	1,114,258	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
Stock Option	$14.91	03/20/2026		A		528,402		(2)	03/20/2036	Class A Common Stock	528,402	$0	528,402	D

Explanation of Responses:

1. Represents an award of 264,201 restricted stock units ("RSUs") which will vest on each of the next sixteen quarterly anniversaries after February 15, 2026. Each RSU represents a contingent right to receive one share of the Issuer's Class A Common Stock and has no expiration date.

2. The stock option will vest annually as to 25% of the underlying shares over the next four anniversaries of March 20, 2026.

Remarks:

	/s/ Jamie Chung, Attorney-in-Fact	03/24/2026
	** 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)