{"schema_version":"secwatch.filing_event.v1","accession":"0001534969-23-000055","form_type":"8-K","ticker":"SERA","cik":"0001534969","company_name":"SERA PROGNOSTICS, INC.","filed_at":"2023-05-19T23:59:59+00:00","discovered_at":"2026-05-14T18:03:39.310181+00:00","generated_at":"2026-06-14T19:45:56.688384+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"CEO Gregory Critchfield to retire June 8; Transition Agreement provides $584K severance plus bonus","bullets":["Retirement as President, CEO and Chairman effective June 8, 2023.","Severance of $584,000 (one year base salary) and pro rata bonus of $131,400.","Unvested stock options/equity forfeited; vested options remain exercisable for remaining term.","COBRA health coverage for up to 12 months or until new coverage.","No immediate successor named in this filing."],"urls":{"canonical":"https://secwatch.observer/filing/0001534969-23-000055","json":"https://secwatch.observer/filing/0001534969-23-000055.json","markdown":"https://secwatch.observer/filing/0001534969-23-000055.md","text":"https://secwatch.observer/filing/0001534969-23-000055.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1534969/000153496923000055/0001534969-23-000055-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1534969/000153496923000055/sera-20230515.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-14T19:45:56.688384+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":"85377f67d0","claim":"Gregory C. Critchfield departed as President, Chief Executive Officer and Chairman of the Board at SERA PROGNOSTICS, INC..","evidence_excerpt":"Gregory C. Critchfield, M.D., M.S. notified the Company of his intention to retire from the position of President and Chief Executive Officer of the Company and Chairman of the Board of Directors, effective as of June 8, 2023","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1534969/000153496923000055/0001534969-23-000055-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retire"},{"label":"Role","value":"President, Chief Executive Officer and Chairman 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"}