---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-044426"
form_type: "8-K"
ticker: "IMSR"
cik: "0002019804"
company_name: "Terrestrial Energy Inc. /DE/"
filed_at: "2026-04-16T23:59:59+00:00"
generated_at: "2026-05-15T05:55:39.229029+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Terrestrial Energy enters new employment agreements with CFO, COO, and CTO on April 16, 2026

## Summary
- CFO Brian Thrasher: base salary $350k, annual bonus target 43% of base, eligible for equity awards under 2025 Plan.
- COO William Smith: base salary $330k, bonus target 20% of base; CTO David LeBlanc: base salary $250k, bonus target 20% of base.
- Without cause termination triggers 6 months base salary severance, pro-rata bonus, accelerated vesting of equity scheduled to vest within 6 months.
- COO and CTO also receive continuation of group health/dental benefits for up to 6 months post-termination; CFO receives COBRA premium reimbursement.
- Each agreement includes 6-month non-compete and non-solicitation covenants post-termination.

## SEC filing metadata
- accession: 0001104659-26-044426
- form_type: 8-K
- ticker: IMSR
- cik: 0002019804
- company_name: Terrestrial Energy Inc. /DE/
- filed_at: 2026-04-16T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2019804/000110465926044426/0001104659-26-044426-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2019804/000110465926044426/tmb-20260416x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-044426
- JSON: https://secwatch.observer/filing/0001104659-26-044426.json
- Plain text: https://secwatch.observer/filing/0001104659-26-044426.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.