David R. Walt

Sits on 1 board. Last updated September 27, 2026

Time on boards

Boards served
1
Current seats
1
Board service
4 years
Director since
2023

4 years of board service in total across 1 board, counting each seat separately. Longest: Quanterix Corporation, 3 years.

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
Jan 2, 2026 Quanterix Corporation Grant or award +1,215 โ€” โ€”
Oct 1, 2025 Quanterix Corporation Grant or award +2,594 $5.54 $14,371
Jul 1, 2025 Quanterix Corporation Grant or award +2,148 $6.69 $14,370
Jun 13, 2025 Quanterix Corporation Open-market purchase +123,990 $6.14 $761,299
Jun 12, 2025 Quanterix Corporation Open-market purchase +36,010 $6.23 $224,342
Jun 9, 2025 Quanterix Corporation Open-market purchase +78,131 $5.34 $417,220
Jun 6, 2025 Quanterix Corporation Open-market purchase +131,869 $5.43 $716,049
Apr 1, 2025 Quanterix Corporation Grant or award +2,156 $6.67 $14,381
Jan 2, 2025 Quanterix Corporation Grant or award +7,435 โ€” โ€”
Aug 20, 2024 Quanterix Corporation Open-market purchase +47,000 $13.29 $624,630
Jan 2, 2024 Quanterix Corporation Grant or award +2,947 โ€” โ€”
Mar 9, 2023 Quanterix Corporation Gift โˆ’1,000 โ€” โ€”
Jan 3, 2023 Quanterix Corporation Grant or award +8,083 โ€” โ€”
Oct 12, 2022 Quanterix Corporation Gift โˆ’1,000 โ€” โ€”

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