Dennis Thomas St

Sits on 3 boards. Last updated September 27, 2026

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.

3 years ยท Since 2023
3 years ยท Since 2023
3 years ยท Since 2023

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 โˆ’740 โ€” โ€”
Jun 15, 2026 FormFactor Inc. FormFactor Inc. Open-market sale โˆ’2,800 $151.49 $424,172
May 22, 2026 Axcelis Technologies Inc. Open-market sale โˆ’900 $155.37 $139,833
May 19, 2026 FormFactor Inc. FormFactor Inc. Open-market sale โˆ’1,000 $115.84 $115,840
May 15, 2026 FormFactor Inc. FormFactor Inc. Grant or award +1,347 โ€” โ€”
May 15, 2026 Axcelis Technologies Inc. Grant or award +1,440 โ€” โ€”
May 11, 2026 Veeco Instruments Inc. Open-market sale โˆ’1,400 $61.93 $86,702
May 8, 2026 Veeco Instruments Inc. Grant or award +2,945 โ€” โ€”
Feb 10, 2026 FormFactor Inc. FormFactor Inc. Open-market sale โˆ’5,601 $93.71 $524,870
Feb 10, 2026 FormFactor Inc. FormFactor Inc. Open-market sale โˆ’1,830 $94.24 $172,459
Nov 17, 2025 FormFactor Inc. FormFactor Inc. Open-market sale โˆ’2,000 $49.85 $99,700
May 29, 2025 FormFactor Inc. FormFactor Inc. Open-market sale โˆ’3,000 $31.24 $93,720
May 16, 2025 FormFactor Inc. FormFactor Inc. Grant or award +6,528 โ€” โ€”
May 15, 2025 Axcelis Technologies Inc. Grant or award +3,586 โ€” โ€”
May 9, 2025 Veeco Instruments Inc. Grant or award +8,291 โ€” โ€”

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