IMSR: Terrestrial Energy Inc. /DE/ insider trading, 5% holders and institutional ownership

From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.

Insider trading

3 open-market buys totaling $112K and 0 sales totaling - in the last 180 days.

Insider buys

ScoreTickerCompanyInsiderRoleTrade dateValueHolding +Cluster
44IMSRTerrestrial Energy Inc. /DE/Pardee Charles GDirector2026-10-14$22K111%3 insiders
55IMSRTerrestrial Energy Inc. /DE/Irish SimonCEO2026-10-13$51K1%3 insiders
57IMSRTerrestrial Energy Inc. /DE/Buckman Frederick WDirector2026-10-09$39K180%3 insiders

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