{"schema_version":"secwatch.filing_event.v1","accession":"0001213900-25-103554","form_type":"8-K","ticker":"IMSR","cik":"0002019804","company_name":"Terrestrial Energy Inc. /DE/","filed_at":"2025-10-29T23:59:59+00:00","discovered_at":"2026-05-14T18:02:41.333974+00:00","generated_at":"2026-05-17T01:45:00.068055+00:00","sec_items":["3.03","5.03","8.01","9.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.75,"confidence":"high","headline":"Terrestrial Energy completes de-SPAC merger; trades on Nasdaq as IMSR/IMSRW","bullets":["HCM II Acquisition Corp domesticated to Delaware corp Oct 23, 2025; merger with Legacy Terrestrial Energy closed Oct 28.","New Terrestrial Energy common stock (IMSR) and warrants (IMSRW) began trading on Nasdaq on Oct 29, 2025.","7,390 HCM II Class A shares redeemed at $10.54/share; aggregate redemption ~$77,890.","Company renamed from HCM II Acquisition Corp to Terrestrial Energy Inc.","The business combination was approved at the extraordinary general meeting on Oct 20, 2025."],"urls":{"canonical":"https://secwatch.observer/filing/0001213900-25-103554","json":"https://secwatch.observer/filing/0001213900-25-103554.json","markdown":"https://secwatch.observer/filing/0001213900-25-103554.md","text":"https://secwatch.observer/filing/0001213900-25-103554.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/2019804/000121390025103554/0001213900-25-103554-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/2019804/000121390025103554/ea0263000-8k_terrestrial.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-17T01:45:00.068055+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"}