Terrestrial Energy's three largest insider shareholders as of September 09, 2026 are Andrew Scott Brenner (Other, 25.00K shares), Jacob Loveless (Other, 25.00K shares), Michael J Connor (Other, 25.00K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Jacob Loveless | Other | 25,000 | 0 | 25,000 | 33.3% | 30 Oct, 2025 |
| 2 | Michael J Connor | Other | 25,000 | 0 | 25,000 | 33.3% | 30 Oct, 2025 |
| 3 | Andrew Scott Brenner | Other | 25,000 | 0 | 25,000 | 33.3% | 30 Oct, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 29 Jul, 2026 | Pamela Beth Cowan | Evp, Engineering | Acquired A | 299,401 | $0.00 | $0 | 299,401 | Direct |
| 23 Jul, 2026 | Kathryn Ann Mccarthy | Director | Acquired A | 2,049 | $0.00 | $0 | 2,049 | Direct |
| 12 Apr, 2026 | Brian Patrick Thrasher | Chief Financial Officer | Acquired A | 49,917 | $0.00 | $0 | 49,917 | Direct |
| 12 Apr, 2026 | Brian Patrick Thrasher | Chief Financial Officer | Acquired A | 49,917 | $0.00 | $0 | 49,917 | Direct |
| 12 Apr, 2026 | William F. Smith | Chief Operating Officer | Acquired A | 32,787 | $0.00 | $0 | 32,787 | Direct |
| 12 Apr, 2026 | Steven M. Millsap | General Counsel | Acquired A | 49,917 | $0.00 | $0 | 49,917 | Direct |
| 12 Apr, 2026 | Steven M. Millsap | General Counsel | Acquired A | 49,917 | $0.00 | $0 | 49,917 | Direct |
| 12 Apr, 2026 | Steven M. Millsap | General Counsel | Acquired A | 49,917 | $0.00 | $0 | 49,917 | Direct |
| 12 Apr, 2026 | William F. Smith | Chief Operating Officer | Acquired A | 32,787 | $0.00 | $0 | 32,787 | Direct |
| 12 Apr, 2026 | Brian Patrick Thrasher | Chief Financial Officer | Acquired A | 49,917 | $0.00 | $0 | 49,917 | Direct |
| 12 Apr, 2026 | Brian Patrick Thrasher | Chief Financial Officer | Acquired A | 49,917 | $0.00 | $0 | 49,917 | Direct |
| 12 Apr, 2026 | William F. Smith | Chief Operating Officer | Acquired A | 32,787 | $0.00 | $0 | 32,787 | Direct |
| 12 Apr, 2026 | William F. Smith | Chief Operating Officer | Acquired A | 32,787 | $0.00 | $0 | 32,787 | Direct |
| 12 Apr, 2026 | Steven M. Millsap | General Counsel | Acquired A | 49,917 | $0.00 | $0 | 49,917 | Direct |
| 12 Apr, 2026 | Brian Patrick Thrasher | Chief Financial Officer | Acquired A | 58,236 | $0.00 | $0 | 58,236 | Direct |
| 12 Apr, 2026 | Brian Patrick Thrasher | Chief Financial Officer | Acquired A | 58,236 | $0.00 | $0 | 58,236 | Direct |
| 12 Apr, 2026 | Brian Patrick Thrasher | Chief Financial Officer | Acquired A | 58,236 | $0.00 | $0 | 58,236 | Direct |
| 12 Apr, 2026 | Brian Patrick Thrasher | Chief Financial Officer | Acquired A | 58,236 | $0.00 | $0 | 58,236 | Direct |
| 12 Apr, 2026 | David Michael Leblanc | Chief Technology Officer | Acquired A | 32,787 | $0.00 | $0 | 32,787 | Direct |
| 18 Dec, 2025 | William D Johnson | Director | Acquired A | 1,029 | $0.00 | $0 | 6,894 | Direct |