secwatch.observer — SEC 8-K summary
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Issuer:     Rivian Automotive, Inc. / DE (RIVN)
CIK:        0001874178
Form:       8-K
Filed at:   2025-12-19T23:59:59+00:00
Accession:  0001874178-25-000060
Event type: leadership
Sentiment:  neutral
Materiality: 0.30
Item codes: 5.02
LLM model:  deepseek-v4-flash:cloud@v2

Director Rose Marcario resigns from Rivian Board effective Jan 1, 2026
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- Rose Marcario resigned from Rivian's Board to focus on other commitments, effective January 1, 2026.
- She will remain Chair of the Rivian Foundation Board of Trustees.
- Board size reduces from eight to seven directors upon her departure.
- No successor or replacement has been announced at this time.

Source:
  EDGAR index:    https://www.sec.gov/Archives/edgar/data/1874178/000187417825000060/0001874178-25-000060-index.htm
  Primary doc:    https://www.sec.gov/Archives/edgar/data/1874178/000187417825000060/rivn-20251217.htm
  HTML page:      https://secwatch.observer/filing/0001874178-25-000060

License: Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer