Mark Chalmers
President & CEO at Energy Fuels Inc
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Energy Fuels Inc, 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Energy Fuels Inc June 11, 2024100.0%
-
Energy Fuels Inc May 25, 202396.7%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jan 27, 2026 | Energy Fuels Inc | Grant or award | +38,289 | — | — |
| Jan 27, 2026 | Energy Fuels Inc | Shares withheld for tax | −59,407 | $24.16 | $1,435,273 |
| Nov 19, 2025 | Energy Fuels Inc | Open-market sale | −150,000 | $15.60 | $2,340,000 |
| Jan 29, 2025 | Energy Fuels Inc | Grant or award | +166,042 | — | — |
| Jan 27, 2025 | Energy Fuels Inc | Shares withheld for tax | −45,372 | $5.17 | $234,573 |
| Dec 12, 2024 | Energy Fuels Inc | Grant or award | +19,096 | — | — |
| May 7, 2024 | Energy Fuels Inc | Open-market purchase | +16,838 | $5.86 | $98,671 |
| Jan 27, 2024 | Energy Fuels Inc | Shares withheld for tax | −46,856 | $7.30 | $342,049 |
| Jan 25, 2024 | Energy Fuels Inc | Grant or award | +88,260 | — | — |
| Nov 15, 2023 | Energy Fuels Inc | Option exercise | +161,729 | $8.27 | $1,337,499 |
| Nov 15, 2023 | Energy Fuels Inc | Shares withheld for tax | −70,350 | $8.27 | $581,795 |
| May 11, 2023 | Energy Fuels Inc | Option exercise | +54,938 | $6.48 | $355,998 |
| May 11, 2023 | Energy Fuels Inc | Shares withheld for tax | −23,517 | $6.48 | $152,390 |
| May 10, 2023 | Energy Fuels Inc | Option exercise | +193,969 | $6.55 | $1,270,497 |
| May 10, 2023 | Energy Fuels Inc | Shares withheld for tax | −84,348 | $6.55 | $552,479 |
Questions about Mark Chalmers
What boards is Mark Chalmers on?
Mark Chalmers sits on the board of Energy Fuels Inc.
What company is Mark Chalmers the CEO of?
Mark Chalmers is President & CEO of Energy Fuels Inc.
How long has Mark Chalmers served on boards?
Our records show at least 4 years of board service across 1 board, the earliest from 2023.
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