[EFFECT] Terrestrial Energy Inc. /DE/ SEC Filing Filing Impact (Neutral) Filing Sentiment (Neutral) Form Type EFFECT See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google Add on Google Not now 06/12/2026 - 12:15 AM ⛶ Fullscreen UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Notice of Effectiveness Effectiveness Date: June 11, 2026 Accession Number: 0001104659-26-071014 Submission Type: POS AM CIK: 0002019804 Company Name: Terrestrial Energy Inc. /DE/ File Number: 333-291796 Source: View Original Filing on SEC EDGAR