Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 11 years
- Director since
- 2023
11 years of board service in total across 3 boards, counting each seat separately. Longest: Axcelis Technologies Inc., 3 years.
Axcelis Technologies Inc.
Director
FormFactor Inc. FormFactor Inc.
Director
Veeco Instruments Inc.
Director
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 |
|---|---|---|---|---|---|
| Jun 16, 2026 | FormFactor Inc. FormFactor Inc. | Gift | −740 | — | — |
| Jun 15, 2026 | FormFactor Inc. FormFactor Inc. | Open-market sale | −2,800 | $151.49 | $424,172 |
| May 22, 2026 | Axcelis Technologies Inc. | Open-market sale | −900 | $155.37 | $139,833 |
| May 19, 2026 | FormFactor Inc. FormFactor Inc. | Open-market sale | −1,000 | $115.84 | $115,840 |
| May 15, 2026 | FormFactor Inc. FormFactor Inc. | Grant or award | +1,347 | — | — |
| May 15, 2026 | Axcelis Technologies Inc. | Grant or award | +1,440 | — | — |
| May 11, 2026 | Veeco Instruments Inc. | Open-market sale | −1,400 | $61.93 | $86,702 |
| May 8, 2026 | Veeco Instruments Inc. | Grant or award | +2,945 | — | — |
| Feb 10, 2026 | FormFactor Inc. FormFactor Inc. | Open-market sale | −5,601 | $93.71 | $524,870 |
| Feb 10, 2026 | FormFactor Inc. FormFactor Inc. | Open-market sale | −1,830 | $94.24 | $172,459 |
| Nov 17, 2025 | FormFactor Inc. FormFactor Inc. | Open-market sale | −2,000 | $49.85 | $99,700 |
| May 29, 2025 | FormFactor Inc. FormFactor Inc. | Open-market sale | −3,000 | $31.24 | $93,720 |
| May 16, 2025 | FormFactor Inc. FormFactor Inc. | Grant or award | +6,528 | — | — |
| May 15, 2025 | Axcelis Technologies Inc. | Grant or award | +3,586 | — | — |
| May 9, 2025 | Veeco Instruments Inc. | Grant or award | +8,291 | — | — |
Questions about Dennis Thomas St
What boards is Dennis Thomas St on?
Dennis Thomas St sits on the boards of Axcelis Technologies Inc., FormFactor Inc. FormFactor Inc. and Veeco Instruments Inc.
How long has Dennis Thomas St served on boards?
Our records show at least 11 years of board service across 3 boards, the earliest from 2023.
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