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Terrestrial Energy Inc. /DE/ — 424B3 Filings

3 424B3 filings on record

This page lists all 424B3 filings submitted to the SEC by Terrestrial Energy Inc. /DE/ (IMSRW), sorted by most recent first. Each row links to the full filing on EdgarLookup. Terrestrial Energy Inc. /DE/ has filed 3 424B3 documents with the SEC since 2024. To view all SEC filings by Terrestrial Energy Inc. /DE/, see the full filings list.

Overview All Filings Financials Insiders
All 10-K 10-K/A 10-Q 10-Q/A 3 3/A 4 4/A 424B3 424B4 425 8-A12B 8-K 8-K/A CERT CORRESP DEFA14A DRS EFFECT NT 10-Q S-1 S-1/A S-4 S-4/A S-8 SC 13G SCHEDULE 13D SCHEDULE 13G SCHEDULE 13G/A UPLOAD
Form Description Accession Number Filed Period
424B3 424B3 0001104659-26-000702 Jan 5, 2026 —
424B3 424B3 0001104659-25-125280 Dec 30, 2025 —
424B3 PROSPECTUS 0001213900-25-092372 Sep 26, 2025 —