Terrestrial Energy Inc /DE/ (IMSR) insider trading
Every open-market stock purchase and sale by Terrestrial Energy Inc /DE/ executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- No open-market insider trades in the last 12 months.
- No open-market insider buys on record.
Last 12 months: insiders bought $0 (0 buys) and sold $0 (0 sales).
Recent IMSR insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Apr 12, 2026 | Brian Patrick Thrasher (CFO) | Bought (not open market) | — |
| Apr 12, 2026 | William F. Smith (COO) | Bought (not open market) | — |
| Apr 12, 2026 | Brian Patrick Thrasher (CFO) | Bought (not open market) | — |
| Apr 12, 2026 | Steven M. Millsap (General Counsel) | Bought (not open market) | — |
| Apr 12, 2026 | David Michael LeBlanc (CTO) | Bought (not open market) | — |
| Dec 18, 2025 | Charles G Pardee (Director) | Bought (not open market) | — |
| Dec 18, 2025 | William D Johnson (Director) | Bought (not open market) | — |
| Dec 18, 2025 | John Hugh MacDiarmid (Director) | Bought (not open market) | — |
| Dec 18, 2025 | John Hugh MacDiarmid (Director) | Bought (not open market) | — |
| Dec 18, 2025 | Frederick W Buckman (Director) | Bought (not open market) | — |
| Dec 18, 2025 | Frederick W Buckman (Director) | Bought (not open market) | — |
| Dec 18, 2025 | David John Hill (Director) | Bought (not open market) | — |
| Dec 18, 2025 | David John Hill (Director) | Bought (not open market) | — |
| Dec 18, 2025 | Robert Wood Jones (Director) | Bought (not open market) | — |
| Dec 18, 2025 | Charles G Pardee (Director) | Bought (not open market) | — |
| Dec 18, 2025 | Shawn Matthews (Director) | Bought (not open market) | — |
| Dec 18, 2025 | Shawn Matthews (Director) | Bought (not open market) | — |
| Dec 18, 2025 | William D Johnson (Director) | Bought (not open market) | — |
| Dec 18, 2025 | William D Johnson (Director) | Bought (not open market) | — |
| Dec 18, 2025 | Robert Wood Jones (Director) | Bought (not open market) | — |
| Nov 6, 2025 | Shawn Matthews (Director) | Sold (not open market) | $40.3M |
| Nov 6, 2025 | Shawn Matthews (Director) | Sold (not open market) | — |
| Oct 28, 2025 | Shawn Matthews (Director) | Sold (not open market) | $49.2M |
| Oct 28, 2025 | Shawn Matthews (Director) | Sold (not open market) | $14.6M |
| Oct 28, 2025 | Andrew Scott Brenner (Insider) | Bought (not open market) | — |
Who's trading IMSR
- Brian Patrick Thrasher, CFO: other filings, last Apr 12, 2026
- David Michael LeBlanc, CTO: other filings, last Apr 12, 2026
- Steven M. Millsap, General Counsel: other filings, last Apr 12, 2026
- William F. Smith, COO: other filings, last Apr 12, 2026
- David John Hill, Director: other filings, last Dec 18, 2025
- William D Johnson, Director: other filings, last Dec 18, 2025
- Robert Wood Jones, Director: other filings, last Dec 18, 2025
- Charles G Pardee, Director: other filings, last Dec 18, 2025
- John Hugh MacDiarmid, Director: other filings, last Dec 18, 2025
- Shawn Matthews, Director: other filings, last Dec 18, 2025
- Frederick W Buckman, Director: other filings, last Dec 18, 2025
- Simon Irish, CEO: other filings, last Oct 28, 2025
- Jacob Loveless, Insider: other filings, last Oct 28, 2025
- Andrew Scott Brenner, Insider: other filings, last Oct 28, 2025
- Michael J Connor, Insider: other filings, last Oct 28, 2025
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