Insider Transactions Reported by 17 Insiders of Terrestrial Energy Inc. /DE/

Symbol
IMSR, IMSRW on Nasdaq
Location
Charlotte, NC

There are no Buy or Sell transactions made by insiders since 19 Mar 2025

Terrestrial Energy Inc. /DE/ executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Simon Irish Chief Executive Officer, Director $98,684,142 28 Oct 2025
Shawn Matthews Director $77,388,005 18 Dec 2025
Roberto Marco Sella 10%+ Owner $8,678,295 29 Oct 2025
John Hugh MacDiarmid Director $495,569 18 Dec 2025
Frederick W. Buckman Director $412,541 18 Dec 2025
David Michael LeBlanc Chief Technology Officer, Director $376,499 28 Oct 2025
David John Hill Director $352,777 18 Dec 2025
Charles G. Pardee Director $129,078 18 Dec 2025
Michael J. Connor Former Director 28 Oct 2025
Jacob Loveless Former Director 28 Oct 2025
Andrew Scott Brenner Former Director 28 Oct 2025
Steven Bischoff CFO and Director, Director 15 Aug 2024
William F. Smith Chief Operating Officer 28 Oct 2025
Steven M. Millsap GC, Sec'y & Chief Comp. Off'r 28 Oct 2025
William D. Johnson Director 18 Dec 2025
Robert Wood Jones Director 18 Dec 2025
Brian Patrick Thrasher Chief Financial Officer 28 Oct 2025

Recent Insider Transactions by Companies or Individuals for Terrestrial Energy Inc. /DE/

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
William D. Johnson HOND Restricted Stock Units Award 17.5% 1,029 6,894 18 Dec 2025 Direct
Frederick W. Buckman HOND Resricted Stock Units Award 17.5% 1,176 7,879 18 Dec 2025 Direct
Frederick W. Buckman HOND Restricted Stock Units Award 6,703 6,703 18 Dec 2025 Direct
Robert Wood Jones HOND Resricted Stock Units Award 17.5% 1,029 6,894 18 Dec 2025 Direct
Robert Wood Jones HOND Restricted Stock Units Award 5,865 5,865 18 Dec 2025 Direct
David John Hill HOND Resricted Stock Units Award 17.5% 588 3,940 18 Dec 2025 Direct
David John Hill HOND Restricted Stock Units Award 3,352 3,352 18 Dec 2025 Direct
Charles G. Pardee HOND Resricted Stock Units Award 17.6% 882 5,909 18 Dec 2025 Direct
Charles G. Pardee HOND Restricted Stock Units Award 5,027 5,027 18 Dec 2025 Direct
John Hugh MacDiarmid HOND Resricted Stock Units Award 17.5% 1,029 6,894 18 Dec 2025 Direct
John Hugh MacDiarmid HOND Restricted Stock Units Award 5,865 5,865 18 Dec 2025 Direct
Shawn Matthews HOND Restricted Stock Units Award 4,925 4,925 18 Dec 2025 Direct
Shawn Matthews HOND Common Stock, par value $0.0001 per share Other -51.4% -2,920,000 2,755,000 06 Nov 2025 See Footnote
Shawn Matthews HOND Warrants Other -81.9% -3,500,000 775,000 06 Nov 2025 See Footnote
Michael J. Connor HOND Common Stock, par value $0.0001 per share Other 25,000 25,000 28 Oct 2025 Direct
Andrew Scott Brenner HOND Common Stock, par value $0.0001 per share Other 25,000 25,000 28 Oct 2025 Direct
Jacob Loveless HOND Common Stock, par value $0.0001 per share Other 25,000 25,000 28 Oct 2025 Direct
Shawn Matthews HOND Common Stock, par value $0.0001 per share Other 533,514 533,514 28 Oct 2025 Direct
Shawn Matthews HOND Common Stock, par value $0.0001 per share Other 5,675,000 5,675,000 28 Oct 2025 See Footnote
Shawn Matthews HOND Warrants Other -81.4% -5,542,599 1,267,599 28 Oct 2025 See Footnote
Simon Irish HOND Restricted Stock Units Award 166,298 166,298 28 Oct 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.