IMSR insider trades & Congress trades
Terrestrial Energy Inc. /DE/: public insider filings and Congress disclosures, in one place.
Bourse has recorded 3 open-market insider transactions in Terrestrial Energy Inc. /DE/ (IMSR) (3 purchases with code P and 0 sales with code S), the most recent on October 14, 2026.
In the last 90 days: 3 purchases by 3 insiders ($112K) and 0 sales by 0 ($0).
The most recent insider buying cluster (three or more different insiders buying within 14 days) ran from October 9, 2026 to October 14, 2026, with 3 insiders.
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Oct 14, 2026 | Pardee Charles G | – | Buy | 7,500 | $2.95 | $22K | – |
| Oct 13, 2026 | Irish Simon | Chief Executive Officer | Buy | 16,900 | $3.01 | $51K | – |
| Oct 9, 2026 | Buckman Frederick W | – | Buy | 12,000 | $3.28 | $39K | – |
Data as of October 22, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
See these filings as they land
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