Colin James Deller
Chief Executive Officer at ClearSign Technologies Corporation
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: ClearSign Technologies Corporation, 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.
-
ClearSign Technologies Corporation June 8, 202690.2%
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ClearSign Technologies Corporation July 25, 202588.8%
-
ClearSign Technologies Corporation June 24, 202453.3%
-
ClearSign Technologies Corporation June 6, 202399.8%
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 |
|---|---|---|---|---|---|
| Feb 26, 2026 | ClearSign Technologies Corporation | Grant or award | +210,043 | — | — |
| Feb 26, 2026 | ClearSign Technologies Corporation | Shares withheld for tax | −105,022 | $0.56 | $58,812 |
| Feb 20, 2025 | ClearSign Technologies Corporation | Grant or award | +100,393 | — | — |
| Feb 20, 2025 | ClearSign Technologies Corporation | Shares withheld for tax | −49,846 | $0.86 | $42,868 |
| Feb 22, 2024 | ClearSign Technologies Corporation | Grant or award | +131,121 | — | — |
| Feb 22, 2024 | ClearSign Technologies Corporation | Shares withheld for tax | −65,102 | $1.06 | $69,008 |
| Feb 2, 2023 | ClearSign Technologies Corporation | Grant or award | +109,806 | — | — |
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