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Terrestrial Energy SEC Filings

NASDAQ: IMSRIndustrialsMetal FabricationsUSD

3.28-0.12 (-3.53%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Terrestrial Energy filing overview

This page lists 60 recent SEC filings by Terrestrial Energy (IMSR), including 19 4, 16 8-K, 8 424B3, 3 10-Q. The latest annual report (10-K) was filed on Mar 30, 2026 for the period ending Dec 31, 2025. The most recent quarterly report (10-Q) was filed on Aug 11, 2026.

The latest current report (8-K), used to disclose material events such as earnings releases and executive changes, was filed on Aug 11, 2026. Form 10-K is the audited annual report, 10-Q the quarterly report, 8-K covers material events, and Form 4 reports insider transactions. All documents link directly to SEC EDGAR.

Summary generated from market data by MetaCap's automated system. Methodology

IMSR SEC filings

Terrestrial Energy SEC filings
FiledFormDescriptionDocument
Aug 14, 2026424B3ProspectusView on EDGAR
Aug 11, 20268-KResults of Operations and Financial ConditionView on EDGAR
Aug 11, 202610-QQuarterly reportView on EDGAR
Jul 31, 20264Statement of changes in beneficial ownershipView on EDGAR
Jul 31, 20268-KDeparture or Appointment of Directors or Officers; Compensatory ArrangementsView on EDGAR
Jul 28, 20268-KDeparture or Appointment of Directors or Officers; Compensatory Arrangements; Regulation FD DisclosureView on EDGAR
Jul 27, 20264Statement of changes in beneficial ownershipView on EDGAR
Jul 21, 20268-KRegulation FD DisclosureView on EDGAR
Jul 17, 20268-KDeparture or Appointment of Directors or Officers; Compensatory ArrangementsView on EDGAR
Jun 12, 20268-KSubmission of Matters to a Vote of Security HoldersView on EDGAR
May 14, 20268-KResults of Operations and Financial ConditionView on EDGAR
May 14, 202610-QQuarterly reportView on EDGAR
May 14, 2026424B3ProspectusView on EDGAR
May 14, 2026424B3ProspectusView on EDGAR
May 8, 20268-KDeparture or Appointment of Directors or Officers; Compensatory ArrangementsView on EDGAR
Apr 29, 2026DEF 14ADefinitive proxy statementView on EDGAR
Apr 16, 20268-KDeparture or Appointment of Directors or Officers; Compensatory ArrangementsView on EDGAR
Apr 14, 20264Statement of changes in beneficial ownershipView on EDGAR
Apr 14, 20264Statement of changes in beneficial ownershipView on EDGAR
Apr 14, 20264Statement of changes in beneficial ownershipView on EDGAR
Apr 14, 20264Statement of changes in beneficial ownershipView on EDGAR
Mar 30, 20268-KResults of Operations and Financial ConditionView on EDGAR
Mar 30, 202610-KAnnual reportView on EDGAR
Mar 30, 2026424B3ProspectusView on EDGAR
Mar 30, 2026424B3ProspectusView on EDGAR
Feb 17, 2026SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Jan 29, 20268-KRegulation FD DisclosureView on EDGAR
Jan 22, 2026SCHEDULE 13GBeneficial ownership report (passive)View on EDGAR
Jan 9, 20264/AAMENDED STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIESView on EDGAR
Jan 5, 2026424B3ProspectusView on EDGAR
Dec 30, 2025424B3ProspectusView on EDGAR
Dec 22, 20254STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIESView on EDGAR
Dec 22, 20254STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIESView on EDGAR
Dec 22, 20254STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIESView on EDGAR
Dec 22, 20254STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIESView on EDGAR
Dec 22, 20254STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIESView on EDGAR
Dec 22, 20254STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIESView on EDGAR
Dec 22, 2025S-1/ARegistration statement (amendment)View on EDGAR
Dec 22, 20254Statement of changes in beneficial ownershipView on EDGAR
Nov 26, 2025S-1Registration statementView on EDGAR
Nov 24, 20258-KChanges in Registrant's Certifying AccountantView on EDGAR
Nov 21, 202510-Q/AQuarterly report (amendment)View on EDGAR
Nov 14, 20258-K/ACurrent report (amendment)View on EDGAR
Nov 14, 202510-QQUARTERLY REPORTView on EDGAR
Nov 13, 20254OWNERSHIP DOCUMENTView on EDGAR
Nov 12, 2025SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Nov 12, 2025SCHEDULE 13G/ABeneficial ownership report (passive) (amendment)View on EDGAR
Nov 4, 2025SCHEDULE 13DBeneficial ownership report (activist)View on EDGAR
Nov 4, 2025SCHEDULE 13DBeneficial ownership report (activist)View on EDGAR
Nov 3, 20258-KEntry into a Material Definitive Agreement; Completion of Acquisition or Disposition of Assets; Unregistered Sales of Equity Securities; Material Modification to Rights of Security Holders; Changes in Control of Registrant; Departure or Appointment of Directors or Officers; Compensatory Arrangements; Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year; Amendments to the Code of Ethics, or Waiver of a Provision of the Code of Ethics; Change in Shell Company StatusView on EDGAR
Oct 30, 20254Statement of changes in beneficial ownershipView on EDGAR
Oct 30, 20254Statement of changes in beneficial ownershipView on EDGAR
Oct 30, 20254Statement of changes in beneficial ownershipView on EDGAR
Oct 30, 20254Statement of changes in beneficial ownershipView on EDGAR
Oct 30, 20254Statement of changes in beneficial ownershipView on EDGAR
Oct 29, 20258-KMaterial Modification to Rights of Security Holders; Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year; Other EventsView on EDGAR
Oct 22, 20258-KSubmission of Matters to a Vote of Security Holders; Regulation FD DisclosureView on EDGAR
Sep 30, 2025SCHEDULE 13GBeneficial ownership report (passive)View on EDGAR
Sep 29, 20258-KOther EventsView on EDGAR
Sep 26, 2025424B3PROSPECTUSView on EDGAR

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