Errol B. Desouza

Sits on 3 boards. Last updated September 27, 2026

Time on boards

Boards served
3
Current seats
3
Board service
9 years
Director since
2023

9 years of board service in total across 3 boards, counting each seat separately. Longest: Royalty Pharma plc, 3 years.

3 years ยท Since 2023
2 years ยท Since 2023
Alector Inc. Director
2 years ยท Since 2024

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 17, 2026 Alector Inc. Grant or award +28,700 โ€” โ€”
Jun 11, 2025 Alector Inc. Grant or award +28,700 โ€” โ€”
May 13, 2025 Royalty Pharma plc Grant or award +7,614 โ€” โ€”
Jun 7, 2024 Royalty Pharma plc Grant or award +9,293 โ€” โ€”
Mar 19, 2024 Alector Inc. Grant or award +41,250 โ€” โ€”
Nov 30, 2023 Korsana Biosciences Inc. Grant or award +20,000 โ€” โ€”
Nov 30, 2023 Korsana Biosciences Inc. Grant or award +30,000 โ€” โ€”
Jun 23, 2023 Royalty Pharma plc Grant or award +7,747 โ€” โ€”

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