Thomas D. Hennessy
Chief Operating Officer at ONE Nuclear Energy Inc.
Sits on 3 boards. Last updated September 28, 2026
Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 3 years
- Director since
- 2025
3 years of board service in total across 3 boards, counting each seat separately. Longest: ONE Nuclear Energy Inc., 1 year.
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 |
|---|---|---|---|---|---|
| Sep 23, 2026 | ONE Nuclear Energy Inc. | Option exercise | +750,000 | — | — |
| Sep 23, 2026 | ONE Nuclear Energy Inc. | Option exercise | +5,203,333 | — | — |
| Sep 23, 2026 | ONE Nuclear Energy Inc. | Option exercise | +41,666 | — | — |
| Feb 6, 2026 | Hennessy Capital Investment Corp. VIII | Open-market purchase | +671,000 | $10.00 | $6,710,000 |
Questions about Thomas D. Hennessy
What boards is Thomas D. Hennessy on?
Thomas D. Hennessy sits on the boards of Hennessy Capital Investment Corp. VIII, Launch Two Acquisition Corp. and ONE Nuclear Energy Inc.
How long has Thomas D. Hennessy served on boards?
Our records show at least 3 years of board service across 3 boards, the earliest from 2025.
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