{"schema_version":"secwatch.filing_event.v1","accession":"0001534969-23-000003","form_type":"8-K","ticker":"SERA","cik":"0001534969","company_name":"SERA PROGNOSTICS, INC.","filed_at":"2023-02-22T23:59:59+00:00","discovered_at":"2026-05-14T18:03:45.479759+00:00","generated_at":"2026-06-19T04:45:02.104164+00:00","sec_items":["1.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.35,"calibrated_materiality_score":0.35,"confidence":"high","headline":"Sera Prognostics amends Baker Bros. director nomination right; ownership threshold raised to 9.9%","bullets":["Amendment to Side Letter with Baker Bros. Advisors LP increases ownership threshold for director nomination from 4.0% to 9.9% of outstanding voting power.","Nomination right suspended while Baker Bros. designee serves on board; right revives when designee leaves.","Amendment dated February 16, 2023; filed as exhibit to 10-K for year ended December 31, 2022."],"urls":{"canonical":"https://secwatch.observer/filing/0001534969-23-000003","json":"https://secwatch.observer/filing/0001534969-23-000003.json","markdown":"https://secwatch.observer/filing/0001534969-23-000003.md","text":"https://secwatch.observer/filing/0001534969-23-000003.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1534969/000153496923000003/0001534969-23-000003-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1534969/000153496923000003/sera-20230216.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-19T04:45:02.104164+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}