Winston J. Churchill

Sits on 2 boards. Last updated September 28, 2026

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: Innovative Solutions and Support Inc., 3 years.

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
Dec 15, 2025 Amkor Technology Inc. Option exercise +5,000 $19.39 $96,950
Dec 15, 2025 Amkor Technology Inc. Open-market sale โˆ’5,000 $44.29 $221,450
May 14, 2025 Amkor Technology Inc. Option exercise +6,017 โ€” โ€”
Aug 27, 2024 Amkor Technology Inc. Option exercise +20,000 $11.71 $234,200
Aug 27, 2024 Amkor Technology Inc. Open-market sale โˆ’20,000 $32.97 $659,400
May 14, 2024 Amkor Technology Inc. Option exercise +8,571 โ€” โ€”
Mar 7, 2024 Amkor Technology Inc. Open-market sale โˆ’11,903 $36.20 $430,889
Jun 13, 2023 Innovative Solutions and Support Inc. Open-market sale โˆ’3,499 $6.90 $24,143
Jun 6, 2023 Innovative Solutions and Support Inc. Open-market sale โˆ’14 $6.90 $97
Jun 5, 2023 Innovative Solutions and Support Inc. Open-market sale โˆ’1,556 $6.90 $10,736
May 19, 2023 Innovative Solutions and Support Inc. Open-market sale โˆ’900 $7.00 $6,300
May 18, 2023 Innovative Solutions and Support Inc. Open-market sale โˆ’80 $7.00 $560
May 17, 2023 Innovative Solutions and Support Inc. Open-market sale โˆ’300 $7.00 $2,100
May 16, 2023 Amkor Technology Inc. Option exercise +8,809 โ€” โ€”
Apr 18, 2023 Innovative Solutions and Support Inc. Grant or award +1,742 โ€” โ€”

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