Terrestrial Energy Inc. /DE/ 8-K

What Happened
Terrestrial Energy Inc. (IMSR) filed a Form 8-K (Item 5.02) on July 17, 2026, reporting that Steven Millsap, who serves as General Counsel, Secretary and Chief Compliance Officer, will end his employment with the company effective September 12, 2026. The filing was signed by CEO Simon Irish.

Key Details

• Filing: Form 8-K, Item 5.02 (Departure of Directors or Certain Officers), filed July 17, 2026.
• Departing officer: Steven Millsap — General Counsel, Secretary, and Chief Compliance Officer.
• Effective date: Employment will end on September 12, 2026.
• Signature: Document signed by Simon Irish, Chief Executive Officer.

Why It Matters
This 8-K notifies investors of a leadership change in Terrestrial Energy’s legal and compliance functions. The filing does not state a reason for the departure or name a successor, so investors should watch for additional disclosures about interim arrangements or a permanent replacement, which could affect legal oversight and compliance continuity.