---
schema_version: "secwatch.filing_event.v1"
accession: "0001104659-26-073471"
form_type: "8-K"
ticker: "IMSR"
cik: "0002019804"
company_name: "Terrestrial Energy Inc. /DE/"
filed_at: "2026-06-12T20:15:43+00:00"
generated_at: "2026-06-12T20:33:27.175379+00:00"
event_type: "other"
sentiment: "neutral"
materiality_score: 0.25
calibrated_materiality_score: 0.15
confidence: "high"
source: SEC EDGAR
---

# Terrestrial Energy stockholders elect three Class I directors and ratify auditor at 2026 annual meeting

## Summary
- Frederick Buckman elected with 56,661,573 For, 303,610 Withheld; 12,704,151 broker non-votes.
- William Johnson elected with 56,668,879 For, 296,304 Withheld; same broker non-votes.
- Hugh MacDiarmid elected with 56,662,842 For, 302,341 Withheld; same broker non-votes.
- Ratification of UHY LLP as auditor for FY2026: 69,103,315 For, 400,853 Against, 165,166 Abstain.

## SEC filing metadata
- accession: 0001104659-26-073471
- form_type: 8-K
- ticker: IMSR
- cik: 0002019804
- company_name: Terrestrial Energy Inc. /DE/
- filed_at: 2026-06-12T20:15:43+00:00
- event_type: other
- sentiment: neutral
- materiality_score: 0.25
- calibrated_materiality_score: 0.15
- confidence: high
- sec_items: 5.07
- EDGAR index: https://www.sec.gov/Archives/edgar/data/2019804/000110465926073471/0001104659-26-073471-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/2019804/000110465926073471/tmb-20260611x8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001104659-26-073471
- JSON: https://secwatch.observer/filing/0001104659-26-073471.json
- Plain text: https://secwatch.observer/filing/0001104659-26-073471.txt

## Key facts
- Shareholder Votes
  Terrestrial Energy Inc. /DE/ shareholders approved Election of three Class I directors at the 2026-06-11 meeting.
  - Proposal: director election
  - Outcome: passed
  - Meeting: 2026-06-11
  source text: The Company’s stockholders elected the three nominees to the Company’s Board of Directors to serve for three-year terms as Class I directors, with the votes cast as follows: ​ Director Name For Withheld Broker Non-Votes Frederick Buckman 56,661,573 303,610 12,704,151 William Johnson 56,668,879 296,304 12,704,151 Hugh MacDiarmid 56,662,842 302,341 12,704,151
  evidence_url: https://www.sec.gov/Archives/edgar/data/2019804/000110465926073471/0001104659-26-073471-index.htm
- Shareholder Votes
  Terrestrial Energy Inc. /DE/ shareholders approved Ratification of appointment of UHY LLP as independent registered public accounting firm at the 2026-06-11 meeting.
  - Proposal: auditor ratification
  - Outcome: passed
  - Meeting: 2026-06-11
  source text: The Company’s stockholders ratified the appointment of UHY LLP as the Company’s independent registered public accounting firm for the fiscal year ending December 31, 2026, with votes cast as follows: ​ ​ For Against Abstain 69,103,315 400,853 165,166
  evidence_url: https://www.sec.gov/Archives/edgar/data/2019804/000110465926073471/0001104659-26-073471-index.htm

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