Terrestrial Energy Inc. /DE/

For the period ended Jun 30, 2026. Filed Aug 11, 2026.

About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Jun 30, 2026 · Filed Aug 11, 2026

IMSR$3.00+5.6%Stored close · as of Nov 9, 2026

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Contents

Exhibit Index


Exhibit No.		Description

3.1		Composite Certificate of Incorporation of Terrestrial Energy Inc. (as amended through March 27, 2026) (incorporated by reference to Exhibit 3.1 of the Company’s Annual Report on Form 10-K, filed with the SEC on March 30, 2026)
3.2		Composite Bylaws of Terrestrial Energy Inc. (as amended through October 28, 2025) (incorporated by reference to Exhibit 3.2 of the Company’s Annual Report on Form 10-K, filed with the SEC on March 30, 2026)
3.3		Certificate of Designations for Special Voting Preferred Stock (incorporated by reference to Exhibit 3.3 of the Company’s Annual Report on Form 10-K, filed with the SEC on March 30, 2026)
10.1‡		Employment Agreement, dated April 16, 2026, by and between Terrestrial Energy Development, Inc. and Brian Thrasher (incorporated by reference to Exhibit 10.1 of the Company’s Current Report on Form 8-K, filed with the SEC on April 16, 2026)
10.2‡		Employment Agreement, dated April 16, 2026, by and between Terrestrial Energy (Ontario) Inc. and William Smith (incorporated by reference to Exhibit 10.2 of the Company’s Current Report on Form 8-K, filed with the SEC on April 16, 2026)
10.3‡		Employment Agreement, dated April 16, 2026, by and between Terrestrial Energy (Ontario) Inc. and David LeBlanc (incorporated by reference to Exhibit 10.3 of the Company’s Current Report on Form 8-K, filed with the SEC on April 16, 2026)
31.1†		Certification of Chief Executive Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2†		Certification of Chief Financial Officer Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1*		Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2*		Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS†		XBRL Instance Document – the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH†		XBRL Taxonomy Extension Schema Document
101.CAL†		XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF†		XBRL Taxonomy Extension Definition Linkbase Document
101.LAB†		XBRL Taxonomy Extension Label Linkbase Document
101.PRE†		XBRL Taxonomy Extension Presentation Linkbase Document
104†		Cover Page Interactive Data File (formatted in Inline XBRL and contained in Exhibit 101)

†	Filed herewith.

Furnished herewith.

‡ Management contract or compensatory plan or arrangement.

ContentsView on SEC.gov

The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.