Terrestrial Energy Inc. Insider Trading

IMSR

Cluster buy

3 insiders bought 112K of their own stock in 6 days.

Open-market purchases by executives and directors between Oct 9 and Oct 14. Buying is rarer than selling and says more, but it is one input, not a verdict.

Net open-market

+112K

3 buys · 0 sales

Under a 10b5-1 plan

—

no sales

Insiders who bought / sold

3 / 0

executives and directors

Last open-market buy

Oct 2026

Oct 14, 2026

Get an email when IMSR's executives or directors buy, or make a large sale outside a plan.

Trades · last 2 years

Date	Insider	Trade	Shares	Price	Value	Of their stake	Filing
Oct 14	Charles G Pardee Director	Bought	7,500	$2.95	22K	111%	Form 4
Oct 13	Simon Irish Chief Executive Officer	Bought	16,900	$3.01	51K	0.3%	Form 4
Oct 9	Frederick W Buckman Director	Bought	12,000	$3.28	39K	56%	Form 4

Oct 14
Charles G Pardee
Director · bought 7,500 at $2.95
22K
111% of stake
Oct 13
Simon Irish
Chief Executive Officer · bought 16,900 at $3.01
51K
0.3% of stake
Oct 9
Frederick W Buckman
Director · bought 12,000 at $3.28
39K
56% of stake

How to read this. Insiders sell for many reasons: taxes, diversifying, a house. Open-market buys are rarer and say more. A 10b5-1 plan is a trading schedule set up months in advance, so those sales were not timed on news. Large holders (funds and 10% owners) are listed under Everything but not counted as insiders. If you own or watch IMSR, we send a push when an executive buys or makes a large sale outside a plan.

Source: SEC Form 4 filings, filed within two business days of each trade and checked for new ones every hour.

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Held by ETFs

IMSR is in 5 US ETFs. The largest of them, with IMSR's weight in each:

Spot a number that looks wrong? Check it in IMSR's SEC filings or

Download this analysis as a PDF (Pro)

Data sourced from SEC EDGAR filings and third-party price providers. Scores, valuations, and metrics are algorithmic estimates. This is not investment advice. See our Terms and Methodology.

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