{"cik":"0002019804","ticker":"IMSR","name":"Terrestrial Energy Inc. /DE/","sic_code":"3443","sic_description":"Fabricated Plate Work (Boiler Shops)","exchange":"Nasdaq","state_of_incorporation":"DE","fiscal_year_end":"1231","first_filing_date":"2026-05-14","last_filing_date":"2026-08-11","url":"/sec/cik-0002019804","insider_summary":{"total_transactions":0,"unique_insiders":0,"latest_transaction":null},"recent_filings":[{"accession_number":"0001104659-26-094085","form_type":"10-Q","form_type_family":"quarterly","doc_date":"2026-08-11","title":"10-Q — Terrestrial Energy Inc. /DE/ — 2026-08-11","url_slug":"/sec/cik-0002019804/10-q/0001104659-26-094085","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0001104659-26-094085-index.html"},{"accession_number":"0002019804-26-000013","form_type":"8-K","form_type_family":"current","doc_date":"2026-07-21","title":"8-K — Terrestrial Energy Inc. /DE/ — 2026-07-21","url_slug":"/sec/cik-0002019804/8-k/0002019804-26-000013","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0002019804-26-000013-index.html"},{"accession_number":"0002019804-26-000006","form_type":"8-K","form_type_family":"current","doc_date":"2026-07-17","title":"8-K — Terrestrial Energy Inc. /DE/ — 2026-07-17","url_slug":"/sec/cik-0002019804/8-k/0002019804-26-000006","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0002019804-26-000006-index.html"},{"accession_number":"0001104659-26-073471","form_type":"8-K","form_type_family":"current","doc_date":"2026-06-12","title":"8-K — Terrestrial Energy Inc. /DE/ — 2026-06-12","url_slug":"/sec/cik-0002019804/8-k/0001104659-26-073471","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0001104659-26-073471-index.html"},{"accession_number":"9999999995-26-001960","form_type":"EFFECT","form_type_family":"other","doc_date":"2026-06-11","title":"EFFECT — Terrestrial Energy Inc. /DE/ — 2026-06-11","url_slug":"/sec/cik-0002019804/effect/9999999995-26-001960","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/9999999995-26-001960-index.html"},{"accession_number":"0001104659-26-071014","form_type":"POS AM","form_type_family":"other","doc_date":"2026-06-05","title":"POS AM — Terrestrial Energy Inc. /DE/ — 2026-06-05","url_slug":"/sec/cik-0002019804/pos-am/0001104659-26-071014","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0001104659-26-071014-index.html"},{"accession_number":"0001104659-26-063860","form_type":"S-8","form_type_family":"other","doc_date":"2026-05-19","title":"S-8 — Terrestrial Energy Inc. /DE/ — 2026-05-19","url_slug":"/sec/cik-0002019804/s-8/0001104659-26-063860","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0001104659-26-063860-index.html"},{"accession_number":"0001104659-26-061234","form_type":"10-Q","form_type_family":"quarterly","doc_date":"2026-05-14","title":"10-Q — Terrestrial Energy Inc. /DE/ — 2026-05-14","url_slug":"/sec/cik-0002019804/10-q/0001104659-26-061234","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0001104659-26-061234-index.html"},{"accession_number":"0001104659-26-060716","form_type":"8-K","form_type_family":"current","doc_date":"2026-05-14","title":"8-K — Terrestrial Energy Inc. /DE/ — 2026-05-14","url_slug":"/sec/cik-0002019804/8-k/0001104659-26-060716","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0001104659-26-060716-index.html"},{"accession_number":"0001104659-26-061280","form_type":"424B3","form_type_family":"registration","doc_date":"2026-05-14","title":"424B3 — Terrestrial Energy Inc. /DE/ — 2026-05-14","url_slug":"/sec/cik-0002019804/424b3/0001104659-26-061280","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0001104659-26-061280-index.html"},{"accession_number":"0001104659-26-061279","form_type":"424B3","form_type_family":"registration","doc_date":"2026-05-14","title":"424B3 — Terrestrial Energy Inc. /DE/ — 2026-05-14","url_slug":"/sec/cik-0002019804/424b3/0001104659-26-061279","edgar_url":"https://www.sec.gov/Archives/edgar/data/2019804/0001104659-26-061279-index.html"}],"related_endpoints":{"profile":"/sec/IMSR/profile","timeline":"/sec/IMSR/timeline","peers":"/sec/IMSR/peers","insider_pulse":"/sec/IMSR/insider-pulse","insider_summary":"/sec/IMSR/insider-summary","insider_transactions":"/sec/IMSR/insider-transactions","form144":"/sec/IMSR/form144","holdings_as_filer":"/sec/IMSR/holdings","financial_facts":"/sec/IMSR/financial-facts","derivatives":"/sec/IMSR/derivatives","officers":"/sec/IMSR/officers","insider_network":"/sec/IMSR/insider-network","risk_flags":"/sec/IMSR/risk-flags","filings":"/sec/IMSR/filings","cross_topic_dossier":"/api/v1/dossier?ticker=IMSR"}}