Management Change/Compensation Form 8 K

On July 1, 2024, Jeffrey Baker, the Chief Accounting Officer (principal accounting officer) of Rivian Automotive, Inc. (the "Company"), notified the Company of his decision to resign effective July 27, 2024 (the "Effective Date") to pursue another opportunity. Mr. Baker will remain in his current role at the Company until the Effective Date. His resignation is not the result of any disagreement with the Company on any matters related to its financial reporting, operations, policies or practices.

On July 4, 2024, the Board of Directors of the Company designated Claire McDonough, the Company's Chief Financial Officer, as the Company's principal accounting officer on an interim basis, effective as of the Effective Date, while the Company engages in a search process to fill the Chief Accounting Officer role. Biographical information for Ms. McDonough, age 43, was included on page 17 of the Company's definitive proxy statement filed with the Securities and Exchange Commission on April 29, 2024, and is incorporated by reference herein.