{"schema_version":"secwatch.filing_event.v1","accession":"0001104659-26-057977","form_type":"8-K","ticker":"IMSR","cik":"0002019804","company_name":"Terrestrial Energy Inc. /DE/","filed_at":"2026-05-08T23:59:59+00:00","discovered_at":"2026-05-14T18:02:33.391615+00:00","generated_at":"2026-05-14T21:13:59.264129+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.25,"confidence":"high","headline":"Terrestrial Energy discloses Board resignation of David Hill, effective July 1, 2026","bullets":["David Hill resigned from the Board of Directors, effective July 1, 2026; joined Board in 2014.","Resignation is not the result of any disagreement with the Company's operations, policies, or practices.","No replacement for the Board seat has been announced as of the filing date."],"urls":{"canonical":"https://secwatch.observer/filing/0001104659-26-057977","json":"https://secwatch.observer/filing/0001104659-26-057977.json","markdown":"https://secwatch.observer/filing/0001104659-26-057977.md","text":"https://secwatch.observer/filing/0001104659-26-057977.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2019804/000110465926057977/0001104659-26-057977-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2019804/000110465926057977/tmb-20260505x8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-14T21:13:59.264129+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"}