RIVN

The sale reported in this transaction was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on November 24, 2025, as described in the Issuer's Annual Report on Form 10-K for the fiscal year ended December 31, 2025, filed with the Securities and Exchange Commission on February 12, 2026. The sale was made under an exception to the restrictions under the Lock-Up Agreement (as defined in Footnote 2) for an "Existing Trading Plan" (as defined therein).

The shares of Class A Common Stock beneficially owned by the Reporting Person following the transactions reported on this Form 4 are subject to a lock-up agreement (the "Lock-Up Agreement") between the Reporting Person and Goldman Sachs & Co. LLC , dated July 6, 2026 (the "Lock-up Date") pursuant to which the shares of Class A Common Stock reported herein cannot be sold for 45 days following the date of the final Prospectus (as defined in the Lock-Up Agreement), subject to certain enumerated exceptions in the Lock-Up Agreement.

By The Boone Family Trust dated August 6, 2015.

Represents an award of 17,445 restricted stock units ("RSUs") which will vest on the first anniversary of the grant date.

Represents an award of 17,445 restricted stock units ("RSUs") which will vest on the first anniversary of the grant date.

Represents an award of 17,445 restricted stock units ("RSUs") which will vest on the first anniversary of the grant date. The Reporting Person has elected to defer the issuance of the shares of the Issuer's Class A Common Stock underlying the RSUs until the Reporting Person's termination of service as a director of the Issuer. The RSUs will settle in shares of the Issuer's Class A Common Stock upon such termination of service.

Represents an award of 17,445 restricted stock units ("RSUs") which will vest on the first anniversary of the grant date.

Represents an award of 17,445 restricted stock units ("RSUs") which will vest on the first anniversary of the grant date.

Represents an award of 17,445 RSUs which will vest on the first anniversary of the grant date.

8,926 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 16,812 restricted stock units ("RSUs") on June 18, 2026.

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.

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.

The sale reported in this transaction was effected automatically pursuant to a previously disclosed Rule 10b5-1 trading plan adopted on March 14, 2025 and amended on June 11, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q for each such quarter.

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.

The Reporting Person is voluntarily reporting the acquisition of shares of the Issuer's Class A Common Stock pursuant to the Rivian Automotive, Inc. 2021 Employee Stock Purchase Plan (the "ESPP") for the purchase period of November 21, 2025 through May 20, 2026 (the "Offering Period"). The acquisition of those 1,682 shares of Class A Common Stock was also exempt pursuant to Rule 16b-3(c).

The Offering Period ended on May 20, 2026, and the shares were acquired on the last business day of the Offering Period.

In accordance with the ESPP, these shares were purchased at a price that represented 85% of the closing price of the Issuer's Class A Common Stock on May 20, 2026.

The Reporting Person is voluntarily reporting the acquisition of shares of the Issuer's Class A Common Stock pursuant to the Rivian Automotive, Inc. 2021 Employee Stock Purchase Plan (the "ESPP") for the purchase period of November 21, 2025 through May 20, 2026 (the "Offering Period"). The acquisition of those 2,756 shares of Class A Common Stock was also exempt pursuant to Rule 16b-3(c).

The Offering Period ended on May 20, 2026, and the shares were acquired on the last business day of the Offering Period.

In accordance with the ESPP, these shares were purchased at a price that represented 85% of the closing price of the Issuer's Class A Common Stock on May 20, 2026.

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.

The price reported is a weighted average sale price. The shares were sold in multiple transactions at prices ranging from $13.24 to $13.78, 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.

3,752 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 6,961 Restricted Stock Units on May 15, 2026.

The closing price of the Company's Class A Common Stock on May 14, 2026.

44,034 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 86,540 Restricted Stock Units on May 15, 2026.

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

17,486 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 39,889 Restricted Stock Units on May 15, 2026.

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

42,082 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 82,703 Restricted Stock Units on May 15, 2026.

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

38,640 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 75,939 Restricted Stock Units on May 15, 2026.

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

The shares of Class A common stock reported herein are held of record by Volkswagen US-Holding, Inc. (formerly known as Volkswagen International America Inc.), which is a wholly-owned subsidiary of Volkswagen AG. Each of Volkswagen US-Holding, Inc. and Volkswagen AG may be deemed to share beneficial ownership of the securities reported herein.

The shares of Class A common stock reported herein were acquired in a private placement pursuant to the terms of the Investment Agreement, dated as of November 13, 2024, as amended on April 17, 2025, by and among Rivian Automotive, Inc., Volkswagen AG and Volkswagen International America Inc.

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.

Represents an award of 1,255 restricted stock units ("RSUs"), which vested on April 20, 2026. The Reporting Person has elected to defer the issuance of the shares of the Issuer's Class A Common Stock underlying the RSUs until the Reporting Person's termination of service as a director of the Issuer. The RSUs will settle in shares of the Issuer's Class A Common Stock upon such termination of service.

Represents an award of 810 restricted stock units ("RSUs"), which vested on April 20, 2026.

Represents an award of 897 restricted stock units ("RSUs"), which vested on April 20, 2026. The RSUs settled in shares of the Issuer's Class A Common Stock upon vesting.

406 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 810 RSUs on January 20, 2026.

The closing price of the Company's Class A Common Stock on April 19, 2026.

Represents an award of 1,255 restricted stock units ("RSUs"), which vested on April 20, 2026. The RSUs settled in shares of the Issuer's Class A Common Stock upon vesting.

The sale reported in this transaction was effected automatically pursuant to a previously disclosed Rule 10b5-1 trading plan adopted on March 14, 2025 and amended on June 11, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q for each such quarter.

The price reported is a weighted average sale price. The shares were sold in multiple transactions at prices ranging from $15.815 to $16.66, 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.

The sale reported in this transaction was effected automatically pursuant to a previously disclosed Rule 10b5-1 trading plan adopted on March 14, 2025 and amended on June 11, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q for each such quarter.

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

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.

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

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.

Represents an award of 115,588 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.

The sale reported in this transaction was effected automatically pursuant to a previously disclosed Rule 10b5-1 trading plan adopted on March 14, 2025 and amended on June 11, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q for each such quarter.

The price reported is a weighted average sale price. The shares were sold in multiple transactions at prices ranging from $15.30 to $15.85, 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.

Represents an award of 67,219 restricted stock units ("RSUs") which vested on March 4, 2026.

Represents an award of 9,852 restricted stock units ("RSUs") which vested on March 4, 2026.

Represents an award of 24,475 restricted stock units ("RSUs") which vested on March 4, 2026.

12,453 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.

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

Represents an award of 24,475 restricted stock units ("RSUs") which vested on March 4, 2026.

34,202 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.

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

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.

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

12,453 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.

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

The sale reported in this transaction was effected automatically pursuant to a previously disclosed Rule 10b5-1 trading plan adopted on March 14, 2025 and amended on June 11, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q for each such quarter.

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.

The price reported is a weighted average sale price. The shares were sold in multiple transactions at prices ranging from $16.49 to $17.08, 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.

The sale reported in this transaction was effected automatically pursuant to a previously disclosed Rule 10b5-1 trading plan adopted on March 14, 2025 and amended on June 11, 2025, as disclosed in the Issuer's Quarterly Report on Form 10-Q for each such quarter.

The price reported is a weighted average sale price. The shares were sold in multiple transactions at prices ranging from $16.49 to $17.07, 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.

35,578 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 February 15, 2026.

The closing price of the Issuer's Class A Common Stock on February 13, 2026.

22,048 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 59,426 Restricted Stock Units on February 15, 2026.

The closing price of the Issuer's Class A Common Stock on February 13, 2026.

25,490 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 66,191 Restricted Stock Units on February 15, 2026.

The closing price of the Issuer's Class A Common Stock on February 13, 2026.