Marcella K. Ruddy

Sits on 2 boards. Last updated September 28, 2026

Time on boards

Boards served
2
Current seats
2
Board service
4 years
Director since
2024

4 years of board service in total across 2 boards, counting each seat separately. Longest: Upstream Bio Inc., 1 year.

1 year ยท Since 2024
1 year ยท Since 2025

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
May 4, 2026 Tectonic Therapeutic Inc. Open-market sale โˆ’1,065 $30.00 $31,950
Apr 1, 2026 Tectonic Therapeutic Inc. Open-market sale โˆ’1,000 $31.05 $31,050
Mar 6, 2026 Tectonic Therapeutic Inc. Open-market sale โˆ’10,000 $30.00 $300,000
Mar 4, 2026 Tectonic Therapeutic Inc. Grant or award +26,500 โ€” โ€”
Feb 4, 2026 Tectonic Therapeutic Inc. Shares withheld for tax โˆ’2,064 $23.22 $47,926
Sep 25, 2025 Tectonic Therapeutic Inc. Grant or award +5,370 โ€” โ€”
Feb 4, 2025 Tectonic Therapeutic Inc. Grant or award +17,876 โ€” โ€”

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