QTRX Insider Trading Activity and SEC Form 4 Filings
QTRX insider trading summary
Over the past 12 months, insiders at Quanterix Corp (QTRX) reported 3 open-market purchases worth $296K by 2 insiders and no sales on SEC Form 4. Net insider buying was $296K.
Latest QTRX insider buys and sells
| Date | Insider | Role | Type | Value |
|---|---|---|---|---|
| Aug 13, 2026 | William P Donnelly | Insider | Buy | $212K (72,245 @ $2.93) |
| Aug 12, 2026 | William P Donnelly | Insider | Buy | $75K (27,155 @ $2.75) |
| May 12, 2026 | Benjamin Meadows | Chief Commercial Officer | Buy | $10K (3,500 @ $2.77) |
| Sep 12, 2025 | Vandana Sriram | Chief Financial Officer | Buy | $20K (4,150 @ $4.79) |
| Jun 13, 2025 | David R Walt | Insider | Buy | $761K (123,990 @ $6.14) |
| Jun 12, 2025 | David R Walt | Insider | Buy | $224K (36,010 @ $6.23) |
| Jun 9, 2025 | David R Walt | Insider | Buy | $417K (78,131 @ $5.34) |
| Jun 9, 2025 | Masoud Toloue | President & CEO | Buy | $249K (45,900 @ $5.42) |
| Jun 6, 2025 | David R Walt | Insider | Buy | $717K (131,869 @ $5.43) |
| Jun 6, 2025 | William P Donnelly | Insider | Buy | $506K (93,113 @ $5.44) |
Source: SEC Form 4 filings. Open-market purchases (code P) and sales (code S) only; option exercises, grants and gifts are excluded.