Rivian Automotive, Inc. CFO Resigns; Interim CFO Appointed

What Happened
Rivian Automotive, Inc. announced on August 24, 2026 that Chief Financial Officer Claire McDonough has notified the company she will resign effective October 30, 2026 to pursue a new opportunity and relocate. McDonough will remain in her role through the October 30 effective date to assist with the transition and stated her resignation is not due to any disagreement with the company on financial reporting, operations, policies or practices. Rivian has initiated an executive search for a permanent CFO, and Derek Mulvey, Vice President of Finance (joined in 2021), is expected to be named Interim CFO upon McDonough’s departure. The company issued a press release on August 27, 2026 announcing the transition.

Key Details

• Resignation notice dated August 24, 2026; effective October 30, 2026.
• Claire McDonough will remain in role through the effective date to support transition.
• Derek Mulvey (VP Finance, at Rivian since 2021) expected to be Interim CFO when McDonough departs.
• Company has an active executive search evaluating internal and external candidates; press release filed Aug 27, 2026 under Regulation FD.

Why It Matters
The CFO transition is material for investors because the CFO oversees financial reporting, capital allocation and investor relations—areas central to quarterly results, guidance and financing decisions. An internal interim appointment (VP Finance Derek Mulvey) suggests continuity in financial operations and investor communications while the company conducts a broader search for a permanent replacement. The filing also clarifies there are no disputes with management over accounting or reporting matters, which reduces governance-related uncertainty during the transition.