(HOND)

Reporting relationship: Director
Issuer ticker: HOND
Reported as of: 18 Dec 2025
Net transaction value: $0
SEC form: 4
Accepted by SEC: 22 Dec 2025, 17:19:35 UTC
Prior SEC filing: 07 Nov 2025
Next SEC filing: 13 May 2026
Source filing: View source filing
Reporting owner signature: /s/ Steven M. Millsap, Attorney-in-Fact

Key filing fact

William D. Johnson filed Form 4 for Terrestrial Energy Inc. /DE/ (HOND) on 22 Dec 2025.

Key facts

This page summarizes William D. Johnson's Form 4 filing for Terrestrial Energy Inc. /DE/ (HOND).
2 reported transactions and 2 derivative rows are listed below.
Accepted by SEC: 22 Dec 2025, 17:19.

Change

Previous filing in this sequence was filed on 07 Nov 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001183048 Primary reporting owner

JOHNSON WILLIAM D

Relationship: Director
Address: 2730 W. TYVOLA ROAD, SUITE 100, CHARLOTTE
Signature: /s/ Steven M. Millsap, Attorney-in-Fact
Signature date: 22 Dec 2025

This filing has been restated. Open the amended filing.

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

IMSR transaction Derivative

Restricted Stock Units

Award

Transaction value: $0
Shares: +5,865
Change %
Price: $0.000000
Shares after: 5,865
Date: 18 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 5,865
Exercise price
Footnotes: F1

IMSR transaction Derivative

Resricted Stock Units

Award

Transaction value: $0
Shares: +1,720
Change %: +29%
Price: $0.000000
Shares after: 7,585
Date: 18 Dec 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 1,720
Exercise price
Footnotes: F1

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 1 footnote

Footnote 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.