# Terrestrial Energy Inc. > Alpha governed public record. Unknown, unavailable, and unpublished values are never inferred as zero. ## Record | Field | Value | | --- | --- | | Representation | alpha-profile-markdown-v4 | | Protocol | Alpha Governance Facts Protocol 0.1 | | Schema | alpha.governance.entity.public.v1 | | Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce | | Governance record representation | alpha-governance-record-v2 | | Canonical entity | alpha:company:d86dc054-8f60-4775-911d-aa3d0ef01665 | | Entity type | Company | | Canonical URL | https://registry.alpha.ac/companies/terrestrial-energy-inc-de | | Publication | PUBLISHED | | Verification | source_reported | | Verification schema | alpha-verification-states-v1 | | Ownership | unclaimed | | Published claims | 17 | | Claims under review | 1 | | Evidence records | 4 | | Conflicts | 0 | | Conflicts in internal review | 0 | | Observed | 2026-10-10T04:48:22.210308+00:00 | | Last reviewed | 2026-10-10T04:48:22.210308+00:00 | ## Identity - Legal name: Terrestrial Energy Inc. /DE/ - Display name: Terrestrial Energy Inc. ## Alpha Governance Record | Field | Value | | --- | --- | | Governance Record schema | alpha-governance-record-v2 | | Ontology | alpha-governance-ontology-v1 | | Record version | public-1:d751713988987e9331980363e24189ce:ro-d751713988987e9331980363e24189ce | | As of | 2026-10-10T10:58:26.989001+00:00 | | Completeness | 0.364 | | Record Quality | 0.846 | | Directors | 10 | | Committees | 0 | | Governance events | 12 | | Entity class | public_company | ## Section coverage | Section | State | | --- | --- | | identity | PUBLISHED | | corporate_structure | NOT_REVIEWED | | board | PUBLISHED | | committees | NOT_REVIEWED | | leadership | PUBLISHED | | ownership | NOT_REVIEWED | | financials | NOT_REVIEWED | | capital_structure | PUBLISHED | | compensation | NOT_REVIEWED | | governance | NOT_REVIEWED | | shareholder_governance | NOT_REVIEWED | | audit | NOT_REVIEWED | | legal | NOT_REVIEWED | | risk | NOT_REVIEWED | | cyber | NOT_REVIEWED | | ai_governance | NOT_REVIEWED | | agent_governance | RESTRICTED | | markets_external | NOT_REVIEWED | | events | PUBLISHED | | relationships | PUBLISHED | | assessments | PUBLISHED | | evidence | PUBLISHED | ## Board - Charles Pardee: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:5 - David Hill: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:6 - David LeBlanc: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:7 - Frederick Buckman: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:8 - Hugh MacDiarmid: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:9 - Robert Jones: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:10 - Shawn Matthews: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:11 - Simon Irish: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:12 - Steven Millsap: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:13 - William Johnson: Director. Status: current. Independent: NOT_PUBLISHED. Since: 2026-04-29. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:14 ## Executive leadership - Brian Thrasher: Chief Financial Officer [CFO]. Status: current. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:15 - Simon Irish: Chief Executive Officer and Director [CEO]. Status: current. claim_id=alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:16 ## Governance events - DIRECTOR_APPOINTED: Charles Pardee seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:1qv1duqbu0ixe - DIRECTOR_APPOINTED: David Hill seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:1r3333b1d4t4q5 - DIRECTOR_APPOINTED: David LeBlanc seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:1yeb0rg1kdr68w - DIRECTOR_APPOINTED: Frederick Buckman seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:dq2j3pwnzc77 - DIRECTOR_APPOINTED: Hugh MacDiarmid seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:hj8mdm1yhprom - DIRECTOR_APPOINTED: Robert Jones seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:enwi9cgxs9h6 - DIRECTOR_APPOINTED: Shawn Matthews seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:13pw6hv1pww9xz - DIRECTOR_APPOINTED: Simon Irish seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:1hbe09g1kv3ado - DIRECTOR_APPOINTED: Steven Millsap seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:25vnc9ik2nzp - DIRECTOR_APPOINTED: William Johnson seat on Terrestrial Energy Inc., effective 2026-04-29. Effective: 2026-04-29. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:ng8e22ff9ma - CFO_CHANGED: Brian Thrasher executive of Terrestrial Energy Inc., effective 2026-03-30. Effective: 2026-03-30. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:9s1tmk166iub6 - CEO_CHANGED: Simon Irish executive of Terrestrial Energy Inc., effective 2026-03-30. Effective: 2026-03-30. Detected: 2026-10-10T04:48:22.210308+00:00. event_id=alpha:event:transition:yx9akj19bfpbj ## Scoped resources - `alpha://company/terrestrial-energy-inc-de` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record - `alpha://company/terrestrial-energy-inc-de/identity` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=identity - `alpha://company/terrestrial-energy-inc-de/corporate-structure` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=corporate-structure - `alpha://company/terrestrial-energy-inc-de/board` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=board - `alpha://company/terrestrial-energy-inc-de/committees` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=committees - `alpha://company/terrestrial-energy-inc-de/leadership` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=leadership - `alpha://company/terrestrial-energy-inc-de/ownership` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=ownership - `alpha://company/terrestrial-energy-inc-de/financials` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=financials - `alpha://company/terrestrial-energy-inc-de/capital-structure` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=capital-structure - `alpha://company/terrestrial-energy-inc-de/compensation` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=compensation - `alpha://company/terrestrial-energy-inc-de/governance` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=governance - `alpha://company/terrestrial-energy-inc-de/shareholder-governance` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=shareholder-governance - `alpha://company/terrestrial-energy-inc-de/audit` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=audit - `alpha://company/terrestrial-energy-inc-de/legal` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=legal - `alpha://company/terrestrial-energy-inc-de/risk` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=risk - `alpha://company/terrestrial-energy-inc-de/cyber` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=cyber - `alpha://company/terrestrial-energy-inc-de/ai-governance` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=ai-governance - `alpha://company/terrestrial-energy-inc-de/agents` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=agents - `alpha://company/terrestrial-energy-inc-de/ecosystem` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=ecosystem - `alpha://company/terrestrial-energy-inc-de/events` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=events - `alpha://company/terrestrial-energy-inc-de/relationships` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=relationships - `alpha://company/terrestrial-energy-inc-de/assessments` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=assessments - `alpha://company/terrestrial-energy-inc-de/evidence` (contract): https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record§ion=evidence ## Role modules - NOT_ASSERTED ## Attention - NO_RECORDS_FOUND ## Committee data - NO_RECORDS_FOUND ## Leadership - Charles Pardee: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:5. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - David Hill: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:6. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - David LeBlanc: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:7. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - Frederick Buckman: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:8. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - Hugh MacDiarmid: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:9. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - Robert Jones: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:10. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - Shawn Matthews: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:11. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - Simon Irish: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:12. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - Steven Millsap: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:13. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - William Johnson: Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:14. Valid from: 2026-04-29. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d. - Brian Thrasher: Chief Financial Officer. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:15. Valid from: 2026-03-30. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:b1681c7398d10d4cc7636ded6ade32b3d1656dbf7ac18681f9943d102cd59b22. - Simon Irish: Chief Executive Officer and Director. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:leadership_role:16. Valid from: 2026-03-30. Valid to: NOT_ASSERTED. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:document:508d017809c82304e997adffbcfde9124246af68ecf7a85c2c9eb3a5aecb357d. ## Roles - PUBLISHED ## Governance - NOT_ASSERTED ## Board committees - PUBLISHED ## Financials - NOT_ASSERTED ## Workforce - NOT_ASSERTED ## Market and index context - PUBLISHED ## Legal Name - Terrestrial Energy Inc. /DE/. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:legal_name:1. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:0f228a9095f26ab0cd396dde57b9c4ac2f0764e2854c2a3f63a49079b9a6b38d. ## Entity Status - Public listing published. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:entity_status:3. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:0f228a9095f26ab0cd396dde57b9c4ac2f0764e2854c2a3f63a49079b9a6b38d. ## Published Fact - US. Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:published_fact:4. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:0f228a9095f26ab0cd396dde57b9c4ac2f0764e2854c2a3f63a49079b9a6b38d. ## Security Listing - IMSR (NASDAQ). Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:security_listing:17. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:0f228a9095f26ab0cd396dde57b9c4ac2f0764e2854c2a3f63a49079b9a6b38d. - IMSRW (NASDAQ). Claim: alpha:claim:company:d86dc054-8f60-4775-911d-aa3d0ef01665:security_listing:18. Publication: PUBLISHED. Verification: source_reported. Assertion: source_reported. Evidence: alpha:projection-evidence:0f228a9095f26ab0cd396dde57b9c4ac2f0764e2854c2a3f63a49079b9a6b38d. ## Coverage states | Field | Value | | --- | --- | | Identity | PUBLISHED | | Business | PUBLISHED | | Leadership | PUBLISHED | | Board and committees | PUBLISHED | | Governance | NOT_ASSERTED | | Financials | NOT_ASSERTED | | Workforce | NOT_ASSERTED | | Ownership | NOT_ASSERTED | | Ratings | NOT_PUBLISHED | | Market and index context | PUBLISHED | ## Public sources - alpha:projection-evidence:0f228a9095f26ab0cd396dde57b9c4ac2f0764e2854c2a3f63a49079b9a6b38d: [Alpha canonical company public projection](https://www.alpha.ac/api/public/companies/terrestrial-energy-inc-de). - alpha:projection-evidence:document:174de4e606c61a73641341ccd4675d9b8bbe6309aff0ace92a9330d66a793b1d: [DEF 14A tmb-20260611xdef14a.htm](https://www.sec.gov/Archives/edgar/data/2019804/000110465926051655/tmb-20260611xdef14a.htm). - alpha:projection-evidence:document:b1681c7398d10d4cc7636ded6ade32b3d1656dbf7ac18681f9943d102cd59b22: [IMSR 10-K executive officers](https://www.sec.gov/Archives/edgar/data/2019804/000110465926036846/tmb-20251231x10k.htm). - alpha:projection-evidence:document:508d017809c82304e997adffbcfde9124246af68ecf7a85c2c9eb3a5aecb357d: [IMSR 10-K executive officers](https://www.sec.gov/Archives/edgar/data/2019804/000110465926036846/tmb-20251231x10k.htm). ## Rights | Field | Value | | --- | --- | | public_retrieval | allowed | | agent_retrieval | allowed | | redistribution | not_granted | | model_training | not_granted | | commercial_use | not_specified | | relationship_pathfinding | not_granted | | direct_contact | not_granted | ## Limitations - Absence of a leadership role, committee, or disclosure is not evidence that it does not exist. - Only explicitly published canonical company identity and current confirmed public roles are included. - Absence of a board, committee, executive, listing, or claim is not evidence that it does not exist. - Public retrieval does not grant redistribution, model-training, direct-contact, or relationship-pathfinding rights. - This Company Profile is an identity and evidence record, not an Alpha rating. ## Alternate representations - [Canonical profile](https://registry.alpha.ac/companies/terrestrial-energy-inc-de) - [Public Markdown](https://registry.alpha.ac/companies/terrestrial-energy-inc-de.md) - [Public JSON](https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=record) - [JSON-LD](https://registry.alpha.ac/api/public/companies/terrestrial-energy-inc-de?format=jsonld) - MCP resource: `alpha://companies/terrestrial-energy-inc-de` at https://mcp.alpha.ac/mcp ## Connected governance records Only explicitly published, rights-cleared records. Missing records do not establish absence, safety, or complete coverage. ## Critical-risk oversight Snapshot as of 2026-10-10T10:58:26.828915+00:00; recorded 2026-10-10T10:58:26.828915+00:00. Every published assignment for this snapshot is listed. Only explicitly reviewed, rights-cleared assignments in effect on the as-of date, in the company's own wording. An assignment shows where oversight is placed, not whether it is effective. Missing records do not establish absence.