{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-25-010169","form_type":"8-K","ticker":"ALMS","cik":"0001847367","company_name":"ALUMIS INC.","filed_at":"2025-02-06T23:59:59+00:00","discovered_at":"2026-05-14T18:03:05.264832+00:00","generated_at":"2026-05-27T01:48:57.188947+00:00","sec_items":["1.01","2.02","7.01","8.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.9,"calibrated_materiality_score":0.9,"confidence":"high","headline":"Alumis to acquire ACELYRIN in all-stock merger; exchange ratio 0.4274","bullets":["Alumis to acquire ACELYRIN via merger; each ACELYRIN share converted into 0.4274 Alumis shares.","Stock options with exercise price ≤$18.00 converted to Alumis options at adjusted strike; options >$18.00 cancelled for no consideration.","Termination fees of $10M each; close targeted by July 7, 2025, subject to stockholder approvals and regulatory conditions.","Alumis reports preliminary cash, equivalents and marketable securities of ~$289M as of Dec 31, 2024.","Voting agreements cover ~24% of ACELYRIN shares and ~62% of Alumis shares; stockholders commit to vote for merger."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-25-010169","json":"https://secwatch.observer/filing/0001104659-25-010169.json","markdown":"https://secwatch.observer/filing/0001104659-25-010169.md","text":"https://secwatch.observer/filing/0001104659-25-010169.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1847367/000110465925010169/0001104659-25-010169-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1847367/000110465925010169/tm254989d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T01:48:57.188947+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"}