TERRESTRIAL ENERGY INC (IMSR) Institutional Ownership and Insiders Activity

TERRESTRIAL ENERGY INC (IMSR) is widely held by institutional investors, with 114 firms reporting positions valued at approximately $136.84M based on SEC Form 13F filings for the quarter ended June 30, 2026.

Vanguard Capital Management Llc is the largest disclosed holder, reporting approximately $24.17M in IMSR holdings in its latest filing.

Recent insider activity includes 5 tracked Form 4 transactions over the last three months, reflecting ongoing executive and director trading activity.