David John Hill - 18 Dec 2025 Form 4 Insider Report for Terrestrial Energy Inc. /DE/ (HOND)

Role
Director
Signature
/s/ Steven M. Millsap, Attorney-in-Fact
Issuer symbol
HOND
Transactions as of
18 Dec 2025
Net transactions value
$0
Form type
4
Filing time
22 Dec 2025, 16:49:29 UTC
Previous filing
07 Nov 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Hill David John Director 2730 W. TYVOLA ROAD, SUITE 100, CHARLOTTE /s/ Steven M. Millsap, Attorney-in-Fact 22 Dec 2025 0002091721

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
transaction IMSR Restricted Stock Units Award $0 +3,352 $0.000000 3,352 18 Dec 2025 Common Stock 3,352 Direct F1
transaction IMSR Resricted Stock Units Award $0 +588 +18% $0.000000 3,940 18 Dec 2025 Common Stock 588 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Each restricted stock unit represents a contingent right to acquire one share of Common Stock. So long as the Reporting Person provides continuous service to Terrestrial Energy, Inc., 100% of the restricted stock units will vest on December 31, 2026.