Rivian Automotive (RIVN) CAO RSU vesting and tax share withholding

Rhea-AI Filing Summary

Rivian Automotive, Inc. Chief Accounting Officer Sreela Venkataratnam reported an equity compensation event involving Class A Common Stock. An award of 9,852 restricted stock units vested on March 4, 2026, delivering the same number of Class A shares.

The company then withheld 3,535 shares of Class A Common Stock at $15.10 per share to satisfy related tax withholding obligations, described as a tax-withholding disposition rather than an open-market sale. Following these transactions, Venkataratnam directly held 484,038 Class A shares.

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

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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^*

Venkataratnam Sreela

(Last) (First) (Middle)

C/O RIVIAN AUTOMOTIVE, INC.

14600 MYFORD RD

(Street)

IRVINE CA 92606

(City) (State) (Zip)

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 Accounting Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/04/2026

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

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

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

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	03/04/2026		A		9,852(1)	A	$0	487,573	D
Class A Common Stock	03/04/2026		F		3,535(2)	D	$15.1(3)	484,038	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. Represents an award of 9,852 restricted stock units ("RSUs") which vested on March 4, 2026.

2. 3,535 shares of Class A Common Stock were withheld by the Company for the purposes of satisfying tax withholding obligations in connection with such RSUs vesting.

3. The closing price of the Company's Class A Common Stock on March 3, 2026.

Remarks:

	/s/ Jamie Chung, Attorney-in-Fact	03/05/2026
	** 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).
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FAQ

What insider transaction did Rivian (RIVN) report for Sreela Venkataratnam?

Rivian reported an equity award vesting for its Chief Accounting Officer. On March 4, 2026, 9,852 restricted stock units vested into Class A Common Stock, and 3,535 shares were withheld by the company to cover tax obligations linked to that RSU vesting event.

How many Rivian (RIVN) shares did Sreela Venkataratnam acquire in this Form 4?

Sreela Venkataratnam acquired 9,852 Class A shares through RSU vesting. These shares came from restricted stock units that vested on March 4, 2026, reflecting a grant or award acquisition rather than an open-market purchase of Rivian Automotive, Inc. stock.

Why were 3,535 Rivian (RIVN) shares disposed of in this Form 4 filing?

3,535 shares were withheld to satisfy tax withholding obligations. The filing describes this as a tax-withholding disposition, where Rivian retained part of the vested shares, valued at $15.10 each, to cover taxes arising from the RSU vesting on March 4, 2026.

What is Sreela Venkataratnam’s Rivian (RIVN) share ownership after these transactions?

After the reported transactions, Sreela Venkataratnam directly held 484,038 Class A shares. This figure reflects both the 9,852-share RSU vesting and the 3,535 shares withheld by Rivian for tax purposes, as disclosed in the Form 4 filing.

At what price were the withheld Rivian (RIVN) shares valued in the Form 4?

The withheld shares were valued at $15.10 per share. The filing notes this amount as the closing price of Rivian’s Class A Common Stock on March 3, 2026, used to determine the value of the 3,535 tax-withheld shares tied to the RSU vesting.

What type of transactions are shown in Rivian (RIVN) CAO’s Form 4?

The Form 4 shows an RSU vesting and related tax-withholding disposition. One transaction is a grant or award acquisition of 9,852 Class A shares, and the other is a disposition of 3,535 shares withheld by Rivian to cover associated tax liabilities.