{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-25-004918","form_type":"8-K","ticker":"VSTM","cik":"0001526119","company_name":"Verastem, Inc.","filed_at":"2025-01-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:03.886781+00:00","generated_at":"2026-05-27T22:05:29.258531+00:00","sec_items":["5.02","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.5,"calibrated_materiality_score":0.5,"confidence":"high","headline":"Verastem appoints Matthew E. Ros as COO effective Jan 14, 2025","bullets":["Matthew E. Ros appointed Chief Operating Officer; reports to CEO Daniel W. Paterson.","Initial annual base salary of $485,000 and target bonus of 45% of base salary.","Receives 50,000 time-based RSUs vesting over 4 years and 33,333 milestone-based RSUs.","Severance: 9 months salary and COBRA if terminated without cause or for good reason.","Change-of-control triggers accelerated vesting of time-based awards and 12 months salary."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-25-004918","json":"https://secwatch.observer/filing/0001104659-25-004918.json","markdown":"https://secwatch.observer/filing/0001104659-25-004918.md","text":"https://secwatch.observer/filing/0001104659-25-004918.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1526119/000110465925004918/0001104659-25-004918-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1526119/000110465925004918/tm253996d1_8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-27T22:05:29.258531+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":"7adb0a4436","claim":"Matthew E. Ros was appointed as Chief Operating Officer at Verastem, Inc..","evidence_excerpt":"Effective January 14, 2025, Verastem, Inc. (the “Company”) appointed Matthew E. Ros as Chief Operating Officer of the Company.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1526119/000110465925004918/0001104659-25-004918-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"Chief Operating Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}