{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-095174","form_type":"8-K","ticker":null,"cik":"0001845337","company_name":"Day One Biopharmaceuticals, Inc.","filed_at":"2026-03-06T23:59:59+00:00","discovered_at":"2026-05-14T18:02:36.514262+00:00","generated_at":"2026-05-15T18:56:52.736371+00:00","sec_items":["1.01","8.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.9,"calibrated_materiality_score":0.9,"confidence":"high","headline":"Servier to acquire Day One Biopharmaceuticals for $21.50/share in all-cash deal valued at ~$2.5B","bullets":["Acquisition at $21.50/share cash, total equity value ~$2.5B; premium of ~68% over March 5 close.","Day One board recommends tender; transaction expected to close in Q2 2026.","Conditions: majority of shares tendered, HSR clearance; no financing condition.","Termination fee of $87.7M payable by Day One if it accepts a superior proposal.","Servier to fund the acquisition from existing cash and investments."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-095174","json":"https://secwatch.observer/filing/0001193125-26-095174.json","markdown":"https://secwatch.observer/filing/0001193125-26-095174.md","text":"https://secwatch.observer/filing/0001193125-26-095174.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1845337/000119312526095174/0001193125-26-095174-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1845337/000119312526095174/d108979d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-15T18:56:52.736371+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":"c9c934d034411350ebd38930cbd6db4001875989","claim":"Day One Biopharmaceuticals, Inc. entered into Agreement and Plan of Merger with Servier Pharmaceuticals LLC, Servier Detroit Inc., and Servier S.A.S. (effective 2026-03-06).","evidence_excerpt":"On March 6, 2026, Servier Pharmaceuticals LLC, a Delaware limited liability company (“ Parent ”), Servier Detroit Inc., a Delaware corporation and a wholly owned subsidiary of Parent (“ Merger Sub ”), Day One Biopharmaceuticals, Inc., a Delaware corporation (the “ Company ”), and Servier S.A.S., a French société par actions simplifiée , solely as a guarantor (“ Guarantor ”), entered into an Agreement and Plan of Merger (the “ Merger Agreement ”).","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1845337/000119312526095174/0001193125-26-095174-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"merger"},{"label":"Counterparty","value":"Servier Pharmaceuticals LLC, Servier Detroit Inc., and Servier S.A.S."},{"label":"Effective","value":"2026-03-06"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}