Phillip B. Donenberg

Sits on 3 boards. Last updated September 28, 2026

Time on boards

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

7 years of board service in total across 3 boards, counting each seat separately. Longest: Tectonic Therapeutic Inc., 3 years.

3 years ยท Since 2023
3 years ยท Since 2023
7 months ยท Since 2026

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 1, 2026 Taysha Gene Therapies Inc. Grant or award +21,335 โ€” โ€”
Jun 2, 2025 Taysha Gene Therapies Inc. Grant or award +56,623 โ€” โ€”
May 29, 2024 Taysha Gene Therapies Inc. Grant or award +49,220 โ€” โ€”
Aug 16, 2023 Taysha Gene Therapies Inc. Open-market purchase +111,111 $0.90 $100,000

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