Terrestrial Energy Inc. /DE/

Q: Jun 30 2026

Q: Mar 31 2026

FY: Dec 31 2025

Q: Sep 30 2025

Q: Sep 30 2025

Q: Jun 30 2025

Q: Mar 31 2025

FY: Dec 31 2024

Q: Mar 31 2025

Q: Mar 31 2025

FY: Dec 31 2024

Q: Sep 30 2024

Q: Jun 30 2024

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Regulation FD Disclosure

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Submission of Matters to a Vote of Security Holders

Results of Operations and Financial Condition

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

Results of Operations and Financial Condition

Regulation FD Disclosure

Changes in Registrant's Certifying Accountant

Financial Statements and Exhibits

Entry into a Material Definitive Agreement

Material Modifications to Rights of Security Holders

Submission of Matters to a Vote of Security Holders

Other Events

Non-Reliance on Previously Issued Financial Statements or a Related Audit Report or Completed Interim Review

Entry into a Material Definitive Agreement

Other Events

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Post-effective amendment to a registration statement

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Rule 506(b) provides a "safer harbor" for a private offering

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Registration statement under Securities Act of 1933 to be offered to employees pursuant to certain plans

Prospectus Supplement for Primary Offering

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Amended Initial Registration Statement

Registration (IPO) statement under Securities Act of 1933

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Written communication about a business combination transaction (Rule 425)

Prospectus Supplement for Primary Offering

Notice of Effectiveness

Definitive Proxy Statement

Additional Information for Proxy Statement/ Votes

Additional Information for Proxy Statement/ Votes

Cowan Pamela Beth

Cowan Pamela Beth

McCarthy Kathryn Ann

McCarthy Kathryn Ann

LeBlanc David Michael

Smith William F.

Thrasher Brian Patrick

Millsap Steven M.

Sella Roberto Marco

CITADEL ADVISORS LLC

Sella Roberto Marco

Sella Roberto Marco

JOHNSON WILLIAM D

BUCKMAN FREDERICK W

Pardee Charles G

Hill David John

Jones Robert Wood

Matthews Shawn

JOHNSON WILLIAM D

MacDiarmid John Hugh

Annual Report Scanned (Paper)

Post-effective amendment filed solely to add exhibits

Post-effective amendment filed solely to add exhibits

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Draft registration statement (confidential submission)

Correspondence with the SEC

Correspondence with the SEC

Correspondence with the SEC

Letter from the SEC

Correspondence with the SEC

Letter from the SEC

Letter from the SEC