{"schema_version":"secwatch.filing_event.v1","accession":"0001827506-24-000086","form_type":"8-K","ticker":null,"cik":"0001827506","company_name":"Tourmaline Bio, Inc.","filed_at":"2024-10-10T23:59:59+00:00","discovered_at":"2026-05-14T18:03:09.870005+00:00","generated_at":"2026-05-30T16:50:13.708120+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Tourmaline Bio CMO Dr. Yung Chyung resigns effective Oct 31, 2024","bullets":["Dr. Yung Chyung resigns as Chief Medical Officer effective October 31, 2024.","Resignation is voluntary to pursue other opportunity; no disagreement with company.","He will stay through Oct 31 to assist transition; duties assumed by senior management.","Company has initiated a search for his successor."],"urls":{"canonical":"https://secwatch.observer/filing/0001827506-24-000086","json":"https://secwatch.observer/filing/0001827506-24-000086.json","markdown":"https://secwatch.observer/filing/0001827506-24-000086.md","text":"https://secwatch.observer/filing/0001827506-24-000086.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1827506/000182750624000086/0001827506-24-000086-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1827506/000182750624000086/trml-20241004.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T16:50:13.708120+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":"6034417b8d","claim":"Dr. Yung Chyung departed as Chief Medical Officer at Tourmaline Bio, Inc..","evidence_excerpt":"On October 4, 2024, Dr. Yung Chyung gave notice of his decision to resign from his position as Chief Medical Officer of Tourmaline Bio, Inc. (the “Company”) in order to pursue another opportunity.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/1827506/000182750624000086/0001827506-24-000086-index.htm","confidence":1.0,"family_label":"Executive change","details":[{"label":"Action","value":"resign"},{"label":"Role","value":"Chief Medical Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}