Insider tradingForm 4

Terrestrial Energy Inc. /DE/ (IMSR) Insider Trading

3 open-market trades reported since Oct 13, 2026: 3 purchases worth $112K and 0 sales worth $0.

By insider

Insider	Role	Buys	Bought	Sold	Latest
Charles G. Pardee	Director	1	$22K	$0	Oct 15, 2026
Simon Irish	CEO	1	$51K	$0	Oct 14, 2026
Frederick W. Buckman	Director	1	$39K	$0	Oct 13, 2026

IMSR insider trades
Filed	Traded	Insider	Role	Type	Shares	Price ($)	Value	Holding	Filing
Oct 15	Oct 14	Charles G. PardeeDirector	Director	▲ BUY	7,500	2.95	$22K	+111%	Form 4 ↗
Oct 14	Oct 13	Simon IrishCEO	CEO	▲ BUY	16,900	3.01	$51K	+0.7%	Form 4 ↗
Oct 13	Oct 9	Frederick W. BuckmanDirector	Director	▲ BUY	12,000	3.28	$39K	+180%	Form 4 ↗

Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings