{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-245790","form_type":"8-K","ticker":"SMMT","cik":"0001599298","company_name":"Summit Therapeutics Inc.","filed_at":"2025-10-22T23:59:59+00:00","discovered_at":"2026-05-14T18:02:39.877462+00:00","generated_at":"2026-05-17T02:45:36.680849+00:00","sec_items":["1.01","3.02","7.01","9.01"],"event_type":"other_material","sentiment":"positive","materiality_score":0.85,"calibrated_materiality_score":0.85,"confidence":"high","headline":"Summit Therapeutics raises $500M in private placement at $18.74/share; insiders invest $282M","bullets":["Raised $500M gross and net proceeds from sale of 26.68M shares at $18.74 each, the closing price on Oct 21, 2025.","Insiders including Duggan, Zanganeh, Soni, Anand contributed $272M; Akeso added $10M, total insider investment $282M.","Proceeds will fund clinical development of ivonescimab and general corporate purposes.","Closing expected on or before October 28, 2025, subject to customary conditions.","Shares issued in a private placement exempt from registration; resale registration to be filed by Dec 19, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-245790","json":"https://secwatch.observer/filing/0001193125-25-245790.json","markdown":"https://secwatch.observer/filing/0001193125-25-245790.md","text":"https://secwatch.observer/filing/0001193125-25-245790.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1599298/000119312525245790/0001193125-25-245790-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1599298/000119312525245790/d274712d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T02:45:36.680849+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"}