Frank E. Thomas

Sits on 2 boards. Last updated September 28, 2026

Time on boards

Boards served
2
Current seats
2
Board service
6 years
Director since
2023

6 years of board service in total across 2 boards, counting each seat separately. Longest: Larimar Therapeutics Inc., 3 years.

3 years ยท Since 2023
2 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 23, 2026 Spero Therapeutics Inc. Grant or award +10,000 โ€” โ€”
Feb 27, 2026 Larimar Therapeutics Inc. Open-market purchase +5,000 $5.00 $25,000
Jun 12, 2025 Spero Therapeutics Inc. Grant or award +20,000 โ€” โ€”
May 29, 2024 Spero Therapeutics Inc. Grant or award +20,000 โ€” โ€”
Feb 14, 2024 Larimar Therapeutics Inc. Open-market purchase +2,000 $11.00 $22,000
Oct 5, 2023 Spero Therapeutics Inc. Grant or award +20,000 โ€” โ€”

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