Rivian Automotive (RIVN) CEO reports 86K RSUs vesting on Aug. 15

Rhea-AI Filing Summary

Rivian Automotive, Inc. (RIVN) reported that CEO Robert J. Scaringe had 44,033 shares of Class A Common Stock withheld on August 15, 2026 to satisfy tax withholding obligations related to the vesting of 86,539 Restricted Stock Units. Following this, he holds 878,253 shares directly, plus indirect holdings of 2,297 shares through an LLC and 2,632,766 shares through a trust.

Insider Trade Summary

Net Seller: 44,033 shares

Net Sell 3 txns

Insider Scaringe Robert J

Role Chief Executive Officer

Type	Security	Shares	Price	Value
Tax Withholding	Class A Common Stock F1, F2	44,033	$15.36	$676K
holding	Class A Common Stock	--	--	--
holding	Class A Common Stock	--	--	--

Holdings After Transaction: Class A Common Stock — 878,253 shares (Direct); Class A Common Stock — 2,297 shares (Indirect, By LLC); Class A Common Stock — 2,632,766 shares (Indirect, By Trust)

Footnotes (2)

1. F1. 44,033 shares of Class A Common Stock were withheld by the Company for the purposes of satisfying tax withholding obligations in connection with the vesting of 86,539 Restricted Stock Units on August 15, 2026.
2. F2. The closing price of the Issuer's Class A Common Stock on August 14, 2026.

Key Figures

Shares withheld for taxes: 44,033 shares RSUs vested: 86,539 units Reference share price: $15.36 per share +3 more

6 metrics

Shares withheld for taxes 44,033 shares Class A Common Stock withheld on August 15, 2026 to satisfy tax withholding obligations

RSUs vested 86,539 units Restricted Stock Units vesting on August 15, 2026 for Robert J. Scaringe

Reference share price $15.36 per share Closing price of Class A Common Stock on August 14, 2026 used for tax withholding

Direct shares after transaction 878,253 shares Direct Class A Common Stock holdings following the August 15, 2026 tax-withholding transaction

Indirect shares by LLC 2,297 shares Indirect Class A Common Stock ownership reported as "By LLC"

Indirect shares by Trust 2,632,766 shares Indirect Class A Common Stock ownership reported as "By Trust"

Key Terms

Restricted Stock Units, withheld by the Company, indirect, Class A Common Stock

4 terms

Restricted Stock Units financial

"in connection with the vesting of 86,539 Restricted Stock Units on August 15, 2026"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

withheld by the Company financial

"44,033 shares of Class A Common Stock were withheld by the Company"

indirect financial

"total_shares_following_transaction: "2297.0000", direct_or_indirect: "I""

Class A Common Stock financial

"44,033 shares of Class A Common Stock were withheld by the Company"

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

What insider transaction did RIVN CEO Robert Scaringe report on August 15, 2026?

Robert J. Scaringe reported 44,033 RIVN shares of Class A Common Stock withheld to cover tax obligations. The withholding was tied to the vesting of 86,539 Restricted Stock Units on August 15, 2026, rather than an open-market sale.

At what price were the RIVN shares valued for Robert Scaringe’s tax withholding?

The 44,033 RIVN shares withheld for taxes were valued at $15.36 per share. This price reflects the closing price of Rivian’s Class A Common Stock on August 14, 2026, as stated in the filing footnote.

How many RIVN shares did Robert Scaringe hold directly after the reported transaction?

After the tax-withholding disposition, Robert J. Scaringe directly held 878,253 shares of Rivian Class A Common Stock. This figure represents his direct ownership position following the August 15, 2026 RSU vesting and related tax share withholding.

What indirect RIVN shareholdings does Robert Scaringe report?

Robert J. Scaringe reports indirect ownership of 2,297 shares of RIVN Class A Common Stock held "By LLC" and 2,632,766 shares held "By Trust." These positions are reported as indirect ownership separate from his directly held shares.

Was Robert Scaringe’s August 2026 RIVN transaction an open-market sale?

The filing describes a tax-withholding disposition under code F, not an open-market sale. 44,033 shares were withheld by Rivian to satisfy tax obligations from vesting of 86,539 Restricted Stock Units on August 15, 2026.

How many Restricted Stock Units vested for RIVN CEO Robert Scaringe in August 2026?

A total of 86,539 Restricted Stock Units vested for Robert J. Scaringe on August 15, 2026. To cover associated tax withholding obligations, 44,033 shares of Class A Common Stock were withheld by Rivian rather than sold on the open market.

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Form 4 Insider Transactions: What Each Field Means →

Available on EDGAR 08/18/2026 - 05:26 PM Accepted by SEC EDGAR 08/18/2026 - 05:25 PM 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^*

Scaringe Robert J

(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)

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

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/15/2026

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	08/15/2026		F		44,033(1)	D	$15.36(2)	878,253	D
Class A Common Stock								2,297	I	By LLC
Class A Common Stock								2,632,766	I	By Trust

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. 44,033 shares of Class A Common Stock were withheld by the Company for the purposes of satisfying tax withholding obligations in connection with the vesting of 86,539 Restricted Stock Units on August 15, 2026.

2. The closing price of the Issuer's Class A Common Stock on August 14, 2026.

Remarks:

	/s/ Jamie Chung, Attorney-in-Fact	08/18/2026
	** 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)