Arthur Tzianabos

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: Q32 Bio Inc., 3 years.

Q32 Bio Inc. Director
3 years ยท Since 2023
Stoke Therapeutics Inc. Director ยท Interim Executive Chair
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
Mar 10, 2026 Stoke Therapeutics Inc. Option exercise +3,955 $8.33 $32,945
Mar 10, 2026 Stoke Therapeutics Inc. Open-market sale โˆ’4,355 $40.00 $174,200
Mar 25, 2024 Q32 Bio Inc. Option exercise +1,095 โ€” โ€”
Mar 25, 2024 Q32 Bio Inc. Open-market sale โˆ’265 $24.20 $6,413
Feb 13, 2024 Stoke Therapeutics Inc. Option exercise +31,739 $2.19 $69,508
Jan 9, 2024 Q32 Bio Inc. Open-market sale โˆ’13,037 $0.57 $7,431
Jan 1, 2024 Q32 Bio Inc. Option exercise +14,280 โ€” โ€”
Jan 1, 2024 Q32 Bio Inc. Option exercise +19,140 โ€” โ€”
Jan 9, 2023 Q32 Bio Inc. Open-market sale โˆ’10,616 $1.39 $14,756
Jan 1, 2023 Q32 Bio Inc. Option exercise +13,860 โ€” โ€”
Jan 1, 2023 Q32 Bio Inc. Option exercise +19,140 โ€” โ€”

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