{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-287163","form_type":"8-K","ticker":"TPST","cik":"0001544227","company_name":"Tempest Therapeutics, Inc.","filed_at":"2025-11-19T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.699267+00:00","generated_at":"2026-05-16T18:26:03.015786+00:00","sec_items":["1.01","3.02","5.02","8.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.85,"confidence":"high","headline":"Tempest Therapeutics to acquire four CAR T assets in all-stock deal; CEO change, warrants issued","bullets":["Acquires ERI-2003, ERI-2206, ERI-3003, ERI-3206 CAR T therapies for 8,268,495 shares of TPST common stock.","Post-closing, existing TPST holders own ~35%; Erigen equityholders (Matt Angel and Lotus Capital) own ~38% and ~27% on fully diluted basis.","Matt Angel appointed President & CEO; Stephen Brady becomes Chairman; Geoff Nichol resigns from board, effective at closing.","Each TPST share to receive one warrant exercisable at $18.48 per share, valid for 5 years from issue date.","Closing requires stockholder approval, Angel's appointment, and a minimum $5M pre-closing financing; expected early 2026."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-287163","json":"https://secwatch.observer/filing/0001193125-25-287163.json","markdown":"https://secwatch.observer/filing/0001193125-25-287163.md","text":"https://secwatch.observer/filing/0001193125-25-287163.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1544227/000119312525287163/0001193125-25-287163-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1544227/000119312525287163/d97617d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T18:26:03.015786+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"}