secwatch.observer — SEC 8-K summary ====================================== Issuer: Rivian Automotive, Inc. / DE (RIVN) CIK: 0001874178 Form: 8-K Filed at: 2026-08-27T20:05:41+00:00 Accession: 0001104659-26-102435 Event type: leadership Sentiment: neutral Materiality: 0.65 Item codes: 5.02, 7.01, 9.01 LLM model: deepseek-v4-flash:cloud@v2 Rivian CFO Claire McDonough to step down Oct 30; Derek Mulvey named interim CFO ------------------------------------------------------------------------------- - Claire McDonough to resign as CFO effective Oct 30, 2026; will assist transition until then. - Derek Mulvey, VP Finance since 2021, expected to be appointed Interim CFO upon her departure. - Company has initiated comprehensive search for permanent CFO, evaluating internal and external candidates. - McDonough led Rivian's $13.7B IPO in Nov 2021; resignation not due to any disagreement with company. Source: EDGAR index: https://www.sec.gov/Archives/edgar/data/1874178/000110465926102435/0001104659-26-102435-index.htm Primary doc: https://www.sec.gov/Archives/edgar/data/1874178/000110465926102435/tm2624125d1_8k.htm HTML page: https://secwatch.observer/filing/0001104659-26-102435 License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer