Andrew Scott Brenner - 28 Oct 2025 Form 4 Insider Report for Terrestrial Energy Inc. /DE/ (HOND)

Signature
/s/ Andrew Brenner, by Steven Bishcoff, Attorney-in-Fact
Issuer symbol
HOND
Transactions as of
28 Oct 2025
Net transactions value
$0
Form type
4
Filing time
30 Oct 2025, 20:33:06 UTC
Previous filing
20 Aug 2024

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Brenner Andrew Scott Former Director C/O HCM INVESTOR HOLDINGS II, LLC, 100 FIRST STAMFORD PLACE, SUITE 330, STAMFORD /s/ Andrew Brenner, by Steven Bishcoff, Attorney-in-Fact 30 Oct 2025 0002030321

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction IMSR Common Stock, par value $0.0001 per share Other +25,000 25,000 28 Oct 2025 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Andrew Scott Brenner is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.

Explanation of Responses:

Id Content
F1 Upon closing of the business combination (the "Business Combination") between the Issuer (which was formerly known as HCM II Acquisition Corp. or "HCM II") and Terrestrial Energy Inc. ("Terrestrial") the reporting person acquired these securities in exchange for the reporting person's securities in Terrestrial pursuant to the terms and conditions of the business combination agreement, by and among HCM, Terrestrial and HCM II Merger Sub Inc. (the "BCA"). The reporting person resigned as a director of HCM II upon the closing of the Business Combination.