StockCIK 2019804
Terrestrial Energy Inc. /DE/ (IMSR): Insider Trades and Fund Holdings
In the past 12 months, Terrestrial Energy Inc. /DE/ insiders reported 3 open-market purchases worth $112K and 0 sales worth $0.
3Insider buys, 12 months
$112KBought by insiders, 12 months
$0Sold by insiders, 12 months
1Tracked funds holding
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Oct 15, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Oct 15 | Charles G. PardeeDirector | ▲ BUY | $22K |
| Oct 14 | Simon IrishCEO | ▲ BUY | $51K |
| Oct 13 | Frederick W. BuckmanDirector | ▲ BUY | $39K |
Source: SEC Form 4 filings, retrieved Oct 28, 2026. How we read filings
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Charles G. Pardee | Director | 1 | $22K | 0 | $0 |
| Simon Irish | CEO | 1 | $51K | 0 | $0 |
| Frederick W. Buckman | Director | 1 | $39K | 0 | $0 |
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Tracked funds that report IMSR
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Renaissance Technologies | 183,800 | $1.30M | ▼ −54.9% |
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →