Terrestrial Energy Inc. /DE/ - Common Stock, par value $0.0001 per share (IMSR) Institutional Ownership

13F Institutional Holders and Ownership History for Q4 2025

Type / Class
Equity / Common Stock, par value $0.0001 per share
Symbol
IMSR on Nasdaq
Shares outstanding
107,243,298
Price per share
$6.11
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Terrestrial Energy Inc. /DE/ - Common Stock, par value $0.0001 per share (IMSR) based on Schedule 13D/G filings

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
Sella Roberto Marco 14% $93,974,555 15,378,689 Roberto Marco Sella 29 Oct 2025
Irish Simon 13% 13,586,445 Simon Irish 28 Oct 2025
LeBlanc David Michael 9.7% 11,400,410 David LeBlanc 28 Oct 2025
Linden Capital L.P. 0.9% 209,426 Linden Capital L.P. 30 Sep 2025
Magnetar Financial LLC 0.62% 142,304 MAGNETAR FINANCIAL LLC 30 Sep 2025

Institutional Holders of Terrestrial Energy Inc. /DE/ - Common Stock, par value $0.0001 per share (IMSR) across Reporting Periods

Period Reported Shares, Excl. Options Value, Excl. Options Value Change Price (Median) Investors
2025 Q4 90,217 $550,326 +$550,326 $6.11 4