{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-25-089270","form_type":"8-K","ticker":null,"cik":"0001923840","company_name":"Third Harmonic Bio, Inc.","filed_at":"2025-04-22T23:59:59+00:00","discovered_at":"2026-05-14T18:02:50.483847+00:00","generated_at":"2026-05-23T09:37:33.800536+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"negative","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Third Harmonic Bio CSO Christopher Dinsmore steps down effective April 21, 2025","bullets":["Christopher Dinsmore resigned as Chief Scientific Officer on April 21, 2025.","He will receive a lump-sum severance of 9 months' salary and healthcare cost coverage for up to 9 months.","Separation agreement includes release of claims, non-disparagement, and confidentiality provisions.","No successor has been announced; Dinsmore's departure leaves the CSO role vacant.","Severance benefits are contingent on compliance with the separation agreement."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-25-089270","json":"https://secwatch.observer/filing/0001193125-25-089270.json","markdown":"https://secwatch.observer/filing/0001193125-25-089270.md","text":"https://secwatch.observer/filing/0001193125-25-089270.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1923840/000119312525089270/0001193125-25-089270-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1923840/000119312525089270/d829877d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T09:37:33.800536+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":"e50a75d161","claim":"Christopher Dinsmore resigned as Chief Scientific Officer at Third Harmonic Bio, Inc..","evidence_excerpt":"On April 21, 2025, Third Harmonic Bio, Inc. (the “ Company ”) and Christopher Dinsmore, Chief Scientific Officer of the Company, entered into a separation agreement with the Company (the “ Separation Agreement ”), pursuant to which Dr. Dinsmore would step down as Chief Scientific Officer effective April 21, 2025 (the “ Separation Date ”).","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1923840/000119312525089270/0001193125-25-089270-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"resigned"},{"label":"Role","value":"Chief Scientific Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}