{"schema_version":"secwatch.filing_event.v1","accession":"0001664710-25-000033","form_type":"8-K","ticker":"KROS","cik":"0001664710","company_name":"Keros Therapeutics, Inc.","filed_at":"2025-04-10T23:59:59+00:00","discovered_at":"2026-05-14T18:02:49.259092+00:00","generated_at":"2026-05-23T17:18:39.625894+00:00","sec_items":["1.01","3.03","5.03","8.01","9.01"],"event_type":"other_material","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Keros Therapeutics adopts poison pill and launches strategic review including potential sale","bullets":["Board formed Strategic Committee to evaluate strategic alternatives including sale or business combination.","Adopted limited-duration rights plan (10% threshold, 15% for passive institutional) expiring April 9, 2026.","Rights plan triggered by an individual investor that disclosed 11.2% ownership as of April 6, 2025.","Dividend of one right per common share for stockholders of record on April 24, 2025.","Goldman Sachs & Co. LLC engaged as financial advisor; Cooley LLP as legal counsel."],"urls":{"canonical":"https://secwatch.observer/filing/0001664710-25-000033","json":"https://secwatch.observer/filing/0001664710-25-000033.json","markdown":"https://secwatch.observer/filing/0001664710-25-000033.md","text":"https://secwatch.observer/filing/0001664710-25-000033.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1664710/000166471025000033/0001664710-25-000033-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1664710/000166471025000033/kros-20250409.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T17:18:39.625894+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"}