Rivian CFO Claire McDonough sells 8,023 shares for $128,368

• Rivian CFO Claire McDonough sold 8,023 Class A common shares on Aug. 20 at USD 16.
• Direct holdings fell to 819,178 shares following the transaction.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Rivian Automotive Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001890925-26-000025), on August 21, 2026, and is solely responsible for the information contained therein.