Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Gevo Inc., 3 years.
Gevo Inc.
Director
Plug Power Inc.
Director · CEO
Chief executive roles
Plug Power Inc.
· President and CEO
Dates unknown
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 |
|---|---|---|---|---|---|
| May 27, 2026 | Gevo Inc. | Grant or award | +70,000 | — | — |
| Apr 1, 2026 | Plug Power Inc. | Grant or award | +3,688 | $2.26 | $8,335 |
| Nov 28, 2025 | Plug Power Inc. | Grant or award | +12,203 | $2.01 | $24,528 |
| Oct 31, 2025 | Plug Power Inc. | Grant or award | +9,415 | $2.69 | $25,326 |
| Oct 3, 2025 | Plug Power Inc. | Grant or award | +18,324 | $3.81 | $69,814 |
| Aug 29, 2025 | Plug Power Inc. | Grant or award | +18,471 | $1.67 | $30,847 |
| Aug 1, 2025 | Plug Power Inc. | Grant or award | +19,968 | $1.54 | $30,751 |
| Jul 4, 2025 | Plug Power Inc. | Grant or award | +38,156 | $1.01 | $38,538 |
| May 30, 2025 | Plug Power Inc. | Grant or award | +36,448 | $0.84 | $30,616 |
| Sep 29, 2023 | Plug Power Inc. | Shares withheld for tax | −96,892 | $7.73 | $748,975 |
| Aug 23, 2023 | Gevo Inc. | Open-market sale | −16,750 | $1.38 | $23,115 |
| Jun 6, 2023 | Gevo Inc. | Open-market sale | −13,950 | $1.54 | $21,483 |
| May 23, 2023 | Gevo Inc. | Grant or award | +100,807 | — | — |
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