Terrestrial Energy (IMSR) executive compensation, 2026 proxy

Simon Irish, Chief Executive Officer, was paid $13.1M in fiscal 2025.

Filed
April 29, 2026
Annual meeting
June 11, 2026
Pay year
fiscal 2025
Named executives
4
CEO total pay
$13.1Mfiscal 2025
CEO pay in equity
97%$12.7M in awards
CEO Base Salary
$169,453Paid during fiscal 2025
CEO Stock Awards
$12,716,201Grant date fair value
CEO Target Bonus
60%Percentage of base salary
CFO Total Compensation
$1,457,881Brian Thrasher fiscal 2025
General Counsel Total
$1,469,029Steven Millsap fiscal 2025

How Irish was paid

$13.1M in total for fiscal 2025, as reported in the Summary Compensation Table. Equity awards are valued at grant, not at what they turned out to be worth.

Salary1%Bonus1%Stock awards97%All other compensation0%

Named executive officers

ExecutiveTotal
Simon IrishChief Executive Officer$13,081,346
Shawn MatthewsFormer Chief Executive Officer$42,220
Brian ThrasherChief Financial Officer$1,457,881
Steven MillsapGeneral Counsel and Secretary$1,469,029

What changed and why

  • $13.1M$13,081,346 total compensation was received by CEO Simon Irish in fiscal 2025.
  • $500K$500,000 is the new annual base salary established for CEO Simon Irish under his employment agreement.
  • 60%60% of base salary is the target annual bonus opportunity established for CEO Simon Irish.
  • $350K$350,000 annual base salary was established for Chief Financial Officer Brian Thrasher.
  • 43%43% of base salary is the target bonus opportunity set for CFO Brian Thrasher.

About this page

Figures are automated and can be wrong; check the filing for the exact numbers. Totals follow SEC rules, which value stock and option awards at grant. Read the DEF 14A proxy statement for footnotes and the compensation committee's full reasoning.