5 insiders reported 9 Form 4 transactions for Terrestrial Energy Inc. /DE/ (IMSR) over the past 18 months (most recent 2025-11-13). Recent activity: Matthews Shawn (Director) Sell 2.9M shares, HCM Investor Holdings II, LLC (Insider) Sell 2.9M shares, Connor Michael J (Insider) Buy 25,000 shares, Brenner Andrew Scott (Insider) Buy 25,000 shares, Matthews Shawn (Director) Buy 5.7M shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-11-13 | Matthews Shawn | Director | Sell | 2.9M | $0 |
| 2025-11-13 | HCM Investor Holdings II, LLC | Insider | Sell | 2.9M | $0 |
| 2025-10-30 | Connor Michael J | Insider | Buy | 25,000 | $0 |
| 2025-10-30 | Brenner Andrew Scott | Insider | Buy | 25,000 | $0 |
| 2025-10-30 | Matthews Shawn | Director | Buy | 5.7M | $0 |
| 2025-10-30 | HCM Investor Holdings II, LLC | Insider | Buy | 5.7M | $0 |
| 2025-10-30 | Matthews Shawn | Director | Buy | 533,514 | $0 |
| 2025-10-30 | HCM Investor Holdings II, LLC | Insider | Buy | 533,514 | $0 |
| 2025-10-30 | Loveless Jacob | Insider | Buy | 25,000 | $0 |
Source: SEC Form 4 filings · as of 2025-11-13
