Stephen A. Sherwin

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: Neurocrine Biosciences Inc., 3 years.

3 years ยท Since 2023
Biogen Inc. Director
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 9, 2026 Biogen Inc. Grant or award +1,505 โ€” โ€”
Jun 5, 2026 Neurocrine Biosciences Inc. Option exercise +15,000 $53.64 $804,600
Jun 5, 2026 Neurocrine Biosciences Inc. Option exercise +10,000 $79.79 $797,900
Jun 5, 2026 Neurocrine Biosciences Inc. Open-market sale โˆ’7,883 $163.81 $1,291,314
Jun 5, 2026 Neurocrine Biosciences Inc. Open-market sale โˆ’2,549 $164.44 $419,158
Jun 5, 2026 Neurocrine Biosciences Inc. Open-market sale โˆ’6,896 $165.79 $1,143,288
Jun 5, 2026 Neurocrine Biosciences Inc. Open-market sale โˆ’5,829 $166.56 $970,878
Jun 5, 2026 Neurocrine Biosciences Inc. Open-market sale โˆ’1,843 $167.31 $308,352
May 21, 2026 Neurocrine Biosciences Inc. Option exercise +3,318 โ€” โ€”
Sep 2, 2025 Neurocrine Biosciences Inc. Gift โˆ’1,000 โ€” โ€”
Jun 17, 2025 Biogen Inc. Grant or award +2,370 โ€” โ€”
May 22, 2025 Neurocrine Biosciences Inc. Option exercise +2,869 โ€” โ€”
Mar 7, 2025 Biogen Inc. Open-market sale โˆ’8,760 $150.02 $1,314,175
Feb 13, 2025 Neurocrine Biosciences Inc. Open-market sale โˆ’13,831 $116.69 $1,613,939
Nov 4, 2024 Neurocrine Biosciences Inc. Gift โˆ’2,000 โ€” โ€”

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