{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-089029","form_type":"8-K","ticker":"CERS","cik":"0001020214","company_name":"CERUS CORP","filed_at":"2025-06-23T23:59:59+00:00","discovered_at":"2026-05-14T18:02:47.162982+00:00","generated_at":"2026-05-18T23:16:02.051279+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Cerus board chair Swisher retires; CEO Greenman named chair, Witney lead independent director","bullets":["Daniel N. Swisher, Jr., chair of the board, retired effective June 16, 2025; no disagreement with the company.","William M. Greenman, President and CEO, appointed chair of the board effective June 20, 2025.","Frank Witney, Ph.D., appointed lead independent director, effective June 20, 2025.","Swisher also left all board committees upon retirement."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-089029","json":"https://secwatch.observer/filing/0000950170-25-089029.json","markdown":"https://secwatch.observer/filing/0000950170-25-089029.md","text":"https://secwatch.observer/filing/0000950170-25-089029.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1020214/000095017025089029/0000950170-25-089029-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1020214/000095017025089029/cers--8-k--swisher_resig.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-18T23:16:02.051279+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"86eeccd046","claim":"William M. Greenman was appointed as Chair of the Board at CERUS CORP.","evidence_excerpt":"on June 20, 2025, the Board appointed William M. Greenman, the Company’s President and Chief Executive Officer and a member of the class of directors whose terms of office expire at the Company’s 2026 annual meeting of stockholders, to serve as chair of the Board","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1020214/000095017025089029/0000950170-25-089029-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chair of the Board"}],"fact_type":"executive_change"},{"claim_id":"f0e2b97785","claim":"Daniel N. Swisher, Jr. retired as Chair of the Board at CERUS CORP.","evidence_excerpt":"On June 16, 2025, Daniel N. Swisher, Jr., chair of the board of directors (the “Board”) of Cerus Corporation (the “Company”), notified the Company of his intent to retire from the Board and all committees thereof on which he served, effective immediately.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1020214/000095017025089029/0000950170-25-089029-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retired"},{"label":"Role","value":"Chair of the Board"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}