Terrestrial Energy Inc. /DE/
SEC CIK 2019804 · IMSR · last insider filing 2026-04-14
Directors (from insider filings)
| Name | Capacity as filed | Filings |
|---|---|---|
| Leblanc David Michael | Director · Chief Technology Officer | filed 2025 - 2026 |
| Johnson William D | Director | filed 2025 - 2026 |
| Buckman Frederick W | Director | filed 2025 - 2025 |
| Jones Robert Wood | Director | filed 2025 - 2025 |
| Pardee Charles G | Director | filed 2025 - 2025 |
| Matthews Shawn | Director · Chairman and CEO | filed 2024 - 2025 |
| Hill David John | Director | filed 2025 - 2025 |
| Macdiarmid John Hugh | Director | filed 2025 - 2025 |
| Irish Simon | Director · Chief Executive Officer | filed 2025 - 2025 |
| Loveless Jacob | Director | filed 2024 - 2025 |
| Connor Michael J | Director | filed 2024 - 2025 |
| Brenner Andrew Scott | Director | filed 2024 - 2025 |
| Bischoff Steven | Director · CFO and Director | filed 2024 - 2024 |
Officers (from insider filings)
| Name | Title as filed | Filings |
|---|---|---|
| Millsap Steven M. | General Counsel | filed 2025 - 2026 |
| Thrasher Brian Patrick | Chief Financial Officer | filed 2025 - 2026 |
| Smith William F. | Chief Operating Officer | filed 2025 - 2026 |
About this record
From the SEC's insider-transaction filings (Forms 3, 4 and 5). Every reporting director and officer carries a Commission-assigned identifier (CIK), so these footprints are identifier-verified - no name matching involved. Insiders file when they transact, so dates are filing dates: "last filed" never means "served until". This layer is not yet joined to the nonprofit register - identity joins ship only after independent review.
Source: SEC Insider Transactions Data Sets (Forms 3/4/5), US Federal Government public domain.