{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-25-055491","form_type":"8-K","ticker":"NUVL","cik":"0001861560","company_name":"Nuvalent, Inc.","filed_at":"2025-04-17T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.229010+00:00","generated_at":"2026-05-23T12:19:56.809808+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Director D. Gary Gilliland to resign from Nuvalent Board, join scientific advisory board","bullets":["Dr. Gilliland notified Nuvalent of resignation effective at 2025 annual meeting.","Will enter consulting agreement to serve on scientific advisory board post-resignation.","Resignation not due to any disagreement on operations, policies, or practices.","Dr. Gilliland currently serves on Board and all committees; departure is planned transition."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-25-055491","json":"https://secwatch.observer/filing/0000950170-25-055491.json","markdown":"https://secwatch.observer/filing/0000950170-25-055491.md","text":"https://secwatch.observer/filing/0000950170-25-055491.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1861560/000095017025055491/0000950170-25-055491-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1861560/000095017025055491/nuvl-20250411.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T12:19:56.809808+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":"864c385129","claim":"D. Gary Gilliland resigned as member of the board of directors at Nuvalent, Inc..","evidence_excerpt":"On April 11, 2025, D. Gary Gilliland, M.D., Ph.D., a member of the board of directors (the “Board”) of Nuvalent, Inc. (the “Company”), notified the Company of his decision to resign from the Board and from all committees of the Board on which he serves, effective as of the date and time of the Company’s 2025 annual meeting of stockholders.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1861560/000095017025055491/0000950170-25-055491-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"member of the board of directors"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}