{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-066964","form_type":"8-K","ticker":"TECX","cik":"0001681087","company_name":"Tectonic Therapeutic, Inc.","filed_at":"2026-02-24T23:59:59+00:00","discovered_at":"2026-05-14T18:02:35.876295+00:00","generated_at":"2026-05-16T00:50:00.247138+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.45,"calibrated_materiality_score":0.45,"confidence":"high","headline":"Tectonic appoints François Nader as independent director and Chair; McGuire steps down","bullets":["François Nader, M.D., appointed to board effective Apr 1, 2026; assumes Chair role same date.","Current Chair Terry McGuire resigns as Chair Apr 1, remains board member until June 2026 annual meeting.","Nader is independent director at Moderna (MRNA); led multiple biotech acquisitions (Acceleron, Alexion).","Company posted presentation on TX2100 for HHT and bleeding disorders (no new clinical data)."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-066964","json":"https://secwatch.observer/filing/0001193125-26-066964.json","markdown":"https://secwatch.observer/filing/0001193125-26-066964.md","text":"https://secwatch.observer/filing/0001193125-26-066964.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1681087/000119312526066964/0001193125-26-066964-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1681087/000119312526066964/d50095d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T00:50:00.247138+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"}