Terrestrial Energy Management
Management criteria checks 3/4
Terrestrial Energy's CEO is Simon Irish, appointed in Oct 2025, has a tenure of less than a year. total yearly compensation is $241.04K, comprised of 17.8% salary and 82.2% bonuses, including company stock and options. directly owns 2.22% of the company’s shares, worth $16.62M. The average tenure of the management team and the board of directors is 0.8 years and 9.3 years respectively.
Key information
Simon Irish
Chief executive officer
US$241.0k
Total compensation
| CEO salary percentage | 17.85% |
| CEO tenure | less than a year |
| CEO ownership | 2.2% |
| Management average tenure | less than a year |
| Board average tenure | 9.3yrs |
Recent management updates
Recent updates
CEO Compensation Analysis
| Date | Total Compensation | Salary | Company Earnings |
|---|---|---|---|
| Dec 31 2025 | n/a | n/a | -US$28m |
| Sep 30 2025 | n/a | n/a | -US$24m |
| Jun 30 2025 | n/a | n/a | -US$17m |
| Mar 31 2025 | n/a | n/a | -US$14m |
| Dec 31 2024 | US$241k | US$43k | -US$11m |
| Dec 31 2023 | US$317k | US$35k | -US$14m |
Compensation vs Market: Simon's total compensation ($USD241.04K) is below average for companies of similar size in the US market ($USD3.64M).
Compensation vs Earnings: Simon's compensation has been consistent with company performance over the past year.
CEO
Simon Irish (56 yo)
Mr. Simon Irish co-founded Terrestrial Energy Inc. in 2012. He serves as CEO at Terrestrial Energy Inc. since October 20, 2025 and is its Director since 2014. He has been Chief Executive Officer and Direct...
Leadership Team
| Name | Position | Tenure | Compensation | Ownership |
|---|---|---|---|---|
| CEO & Director | less than a year | US$241.04k | 2.22% $ 16.6m | |
| Chief Operating Officer | less than a year | US$177.30k | 0% $ 0 | |
| CTO & Director | less than a year | US$146.33k | 0.019% $ 139.6k | |
| Chief Financial Officer | less than a year | no data | no data | |
| Chief Compliance Officer | less than a year | no data | no data |
Experienced Management: IMSR's management team is not considered experienced ( 0.8 years average tenure), which suggests a new team.
Board Members
| Name | Position | Tenure | Compensation | Ownership |
|---|---|---|---|---|
| CEO & Director | 12.3yrs | US$241.04k | 2.22% $ 16.6m | |
| CTO & Director | 13.3yrs | US$146.33k | 0.019% $ 139.6k | |
| Independent Non-Employee Director | 3.3yrs | no data | 0% $ 0 | |
| Independent Non-Employee Chairman | 9.3yrs | no data | 0.020% $ 152.9k | |
| Independent Non-Employee Director | 12.3yrs | no data | 0.15% $ 1.1m | |
| Independent Non-Employee Director | less than a year | no data | 0.0070% $ 52.9k | |
| Independent Non-Employee Director | 2.3yrs | no data | 0.0064% $ 47.8k | |
| Independent Non-Employee Director | less than a year | no data | 3.14% $ 23.6m | |
| Independent Non-Employee Director | 12.3yrs | no data | no data |
Experienced Board: IMSR's board of directors are considered experienced (9.3 years average tenure).
Company Analysis and Financial Data Status
| Data | Last Updated (UTC time) |
|---|---|
| Company Analysis | 2026/04/22 02:50 |
| End of Day Share Price | 2026/04/22 00:00 |
| Earnings | 2025/12/31 |
| Annual Earnings | 2025/12/31 |
Data Sources
The data used in our company analysis is from S&P Global Market Intelligence LLC. The following data is used in our analysis model to generate this report. Data is normalised which can introduce a delay from the source being available.
| Package | Data | Timeframe | Example US Source * |
|---|---|---|---|
| Company Financials | 10 years |
| |
| Analyst Consensus Estimates | +3 years |
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| Market Prices | 30 years |
| |
| Ownership | 10 years |
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| Management | 10 years |
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| Key Developments | 10 years |
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* Example for US securities, for non-US equivalent regulatory forms and sources are used.
Unless specified all financial data is based on a yearly period but updated quarterly. This is known as Trailing Twelve Month (TTM) or Last Twelve Month (LTM) Data. Learn more.
Analysis Model and Snowflake
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Industry and Sector Metrics
Our industry and section metrics are calculated every 6 hours by Simply Wall St, details of our process are available on Github.
Analyst Sources
Terrestrial Energy Inc. is covered by 2 analysts. 2 of those analysts submitted the estimates of revenue or earnings used as inputs to our report. Analysts submissions are updated throughout the day.
| Analyst | Institution |
|---|---|
| Derek Soderberg | Cantor Fitzgerald & Co. |
| Jeffrey Grampp | Northland Capital Markets |