Quick answer
3 insiders bought Terrestrial Energy Inc. /DE/ (IMSR) stock on the open market between 2026-10-09 and 2026-10-14, totalling $224,559; the largest buyer was Irish Simon (Chief Executive Officer) with $101,637, per SEC Form 4 filings.
Insider buyers
| Buyer | Role | Total bought |
|---|---|---|
| Irish Simon | Chief Executive Officer | $101,637 |
| BUCKMAN FREDERICK W | Director | $78,672 |
| Pardee Charles G | Director | $44,250 |
SEC sources
- 0001193125-26-420002
- 0001193125-26-423068
- 0001193125-26-420002
- 0001193125-26-421089
- 0001193125-26-423068
- 0001193125-26-421089
Updated 2026-10-15. Source: SEC EDGAR filings (linked above). Data only. Not investment advice, no buy/sell recommendation.