Quanterix Corp (QTRX)

Latest Insider Confidence Score

2026Q1

48.8
Bearish

Company insider confidence (by quarter)

2017Q4 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Biomerieux/Adr 2,055,632 Dec 13, 2017
Walt David R Director 1,871,675 Oct 3, 2025
Hrusovsky E Kevin Chair 910,249 Jul 6, 2022
Toloue Masoud CEO 510,200 Dec 3, 2025
Meister Paul M Director 309,279 Jul 2, 2025

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 15, 2026 Feb 18, 2026 Sriram Vandana CFO Sell 37.5 -271 -0.52% $1.6K
Feb 4, 2026 Feb 6, 2026 Sriram Vandana CFO Neutral 27.5 -4,395 -5.11% -
Jan 19, 2026 Jan 21, 2026 Cunningham Everett CEO Neutral 52.5 - 0.00% -
Jan 21, 2026 Cunningham Everett CEO Neutral 52.5 - 0.00% -
Jan 15, 2026 Jan 20, 2026 Sriram Vandana CFO Sell 45.0 -274 -0.32% $2.2K
Jan 15, 2026 Jan 20, 2026 Toloue Masoud CEO Sell 43.8 -1,817 -0.36% $14.4K
Jan 2, 2026 Jan 15, 2026 MEISTER PAUL M Director Neutral 77.5 +3,974 1.28% -
Jan 2, 2026 Jan 15, 2026 Magovcevic-Liebisch Ivana Director Neutral 90.0 +23,372 115.50% -
Jan 2, 2026 Jan 14, 2026 Elliott Jeffrey Thomas Director Neutral 90.0 +23,372 120.35% -
Jan 2, 2026 Jan 6, 2026 WALT DAVID R Director Neutral 55.0 +1,215 0.06% -
Jan 2, 2026 Jan 6, 2026 DONNELLY WILLIAM P Chair Neutral 77.5 +2,377 1.60% -
Jan 2, 2026 Jan 6, 2026 Hampton Malcolm Garret Director Neutral 90.0 +23,372 50.02% -
Jan 2, 2026 Jan 6, 2026 Sachs Alan Bruce Director Neutral 90.0 +23,372 50.02% -
Jan 2, 2026 Jan 6, 2026 LAI GOLDMAN MYLA Director Neutral 90.0 +25,316 85.85% -
Jan 2, 2026 Jan 6, 2026 Mendel Scott Director Neutral 90.0 +25,316 82.36% -
Jan 2, 2026 Jan 6, 2026 Flynn Karen Director Neutral 90.0 +23,372 69.07% -
Dec 31, 2025 Jan 5, 2026 Toloue Masoud CEO Sell 52.5 -258 -0.05% $1.6K
Dec 15, 2025 Dec 18, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.27% $1.7K
Dec 15, 2025 Dec 18, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.24% $9.2K
Nov 20, 2025 Dec 8, 2025 Sachs Alan Bruce Director Neutral 90.0 +46,727 100.00% -
Nov 30, 2025 Dec 3, 2025 Toloue Masoud CEO Sell 52.5 -254 -0.05% $1.8K
Nov 25, 2025 Hampton Malcolm Garret Director Neutral 52.5 - 0.00% -
Nov 20, 2025 Nov 25, 2025 Hampton Malcolm Garret Director Neutral 90.0 +46,727 100.00% -
Nov 20, 2025 Nov 24, 2025 DONNELLY WILLIAM P Chair Neutral 52.5 - 0.00% -
Nov 15, 2025 Nov 24, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.26% $1.3K
Nov 15, 2025 Nov 24, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.24% $7.1K
Oct 31, 2025 Nov 5, 2025 Toloue Masoud CEO Sell 52.5 -254 -0.05% $1.4K
Oct 15, 2025 Oct 17, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.26% $1.3K
Oct 15, 2025 Oct 17, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.24% $7.2K
Oct 1, 2025 Oct 3, 2025 LAI GOLDMAN MYLA Director Neutral 85.0 +2,084 7.60% -
Oct 1, 2025 Oct 3, 2025 DONNELLY WILLIAM P Director Neutral 82.5 +5,076 3.54% -
Oct 1, 2025 Oct 3, 2025 Mendel Scott Director Neutral 85.0 +2,084 7.27% -
Oct 1, 2025 Oct 3, 2025 WALT DAVID R Director Neutral 55.0 +2,594 0.14% -
Sep 30, 2025 Oct 2, 2025 Toloue Masoud CEO Sell 52.5 -254 -0.05% $1.4K
Sep 15, 2025 Sep 17, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.26% $1.1K
Sep 15, 2025 Sep 17, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.24% $6.2K
Sep 12, 2025 Sep 17, 2025 Sriram Vandana CFO Buy 83.8 +4,150 5.00% $19.9K
Aug 31, 2025 Sep 3, 2025 Toloue Masoud CEO Sell 52.5 -254 -0.05% $1.2K
Aug 15, 2025 Aug 19, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.27% $1K
Aug 15, 2025 Aug 19, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.24% $5.7K
Jul 31, 2025 Aug 4, 2025 Toloue Masoud CEO Sell 52.5 -254 -0.05% $1.5K
Jul 15, 2025 Jul 17, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.27% $1.3K
Jul 15, 2025 Jul 17, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.24% $6.8K
Jul 8, 2025 Jul 10, 2025 LAI GOLDMAN MYLA Director Neutral 90.0 +27,404 100.00% -
Jul 8, 2025 Jul 10, 2025 Mendel Scott Director Neutral 90.0 +28,653 100.00% -
Jul 9, 2025 LAI GOLDMAN MYLA Director Neutral 52.5 - 0.00% -
Jul 9, 2025 Mendel Scott Director Neutral 52.5 - 0.00% -
Jul 1, 2025 Jul 3, 2025 Hlavinka Sarah E. Director Neutral 82.5 +2,615 4.55% -
Jul 1, 2025 Jul 2, 2025 MEISTER PAUL M Director Neutral 67.5 +2,242 0.73% -
Jul 1, 2025 Jul 2, 2025 DONNELLY WILLIAM P Director Neutral 82.5 +4,204 3.02% -
Jul 1, 2025 Jul 2, 2025 WALT DAVID R Director Neutral 55.0 +2,148 0.12% -
Jun 30, 2025 Jul 2, 2025 Toloue Masoud CEO Sell 52.5 -254 -0.05% $1.7K
Jun 15, 2025 Jun 17, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.24% $7.5K
Jun 15, 2025 Jun 17, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.27% $1.4K
Jun 12, 2025 Jun 13, 2025 WALT DAVID R Director Buy 92.5 +160,000 9.37% $985K
Jun 9, 2025 Jun 10, 2025 Toloue Masoud CEO Buy 90.0 +45,900 9.70% $248.7K
Jun 6, 2025 Jun 9, 2025 WALT DAVID R Director Buy 100.0 +210,000 14.03% $1.1M
Jun 6, 2025 Jun 9, 2025 DONNELLY WILLIAM P Director Buy 97.5 +93,113 202.50% $506.3K
May 31, 2025 Jun 3, 2025 Toloue Masoud CEO Sell 52.5 -254 -0.05% $1.3K
May 15, 2025 May 19, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.27% $1K
May 15, 2025 May 19, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.26% $5.6K
Apr 30, 2025 May 2, 2025 Toloue Masoud CEO Sell 52.5 -254 -0.05% $1.5K
Apr 15, 2025 Apr 17, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.27% $1.2K
Apr 15, 2025 Apr 17, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.26% $6.4K
Apr 1, 2025 Apr 3, 2025 WALT DAVID R Director Neutral 55.0 +2,156 0.14% -
Apr 1, 2025 Apr 3, 2025 MEISTER PAUL M Director Neutral 67.5 +2,479 0.81% -
Apr 1, 2025 Apr 3, 2025 Hlavinka Sarah E. Director Neutral 82.5 +2,625 4.79% -
Apr 1, 2025 Apr 3, 2025 DONNELLY WILLIAM P Director Neutral 85.0 +2,681 6.19% -
Mar 31, 2025 Apr 2, 2025 Toloue Masoud CEO Sell 52.5 -254 -0.05% $1.7K
Mar 15, 2025 Mar 18, 2025 Toloue Masoud CEO Sell 45.0 -1,242 -0.26% $8.8K
Mar 15, 2025 Mar 18, 2025 Sriram Vandana CFO Sell 45.0 -229 -0.27% $1.6K
Feb 28, 2025 Mar 4, 2025 Toloue Masoud CEO Sell 52.5 -247 -0.05% $1.9K
Feb 15, 2025 Feb 19, 2025 Sriram Vandana CFO Sell 52.5 -92 -0.11% $740.6
Feb 15, 2025 Feb 19, 2025 Toloue Masoud CEO Sell 52.5 -752 -0.16% $6.1K
Feb 4, 2025 Feb 6, 2025 Sriram Vandana CFO Neutral 90.0 +50,712 150.02% -
Feb 4, 2025 Feb 6, 2025 Toloue Masoud CEO Neutral 90.0 +138,790 40.85% -
Feb 2, 2025 Feb 4, 2025 Sriram Vandana CFO Sell 26.3 -2,166 -6.02% $19.9K
Jan 31, 2025 Feb 4, 2025 Toloue Masoud CEO Sell 22.5 -6,375 -1.84% $58.6K
Jan 15, 2025 Jan 17, 2025 Sriram Vandana CFO Sell 45.0 -93 -0.26% $801.7
Jan 15, 2025 Jan 17, 2025 Toloue Masoud CEO Sell 45.0 -906 -0.26% $7.8K
Jan 2, 2025 Jan 6, 2025 WALT DAVID R Director Neutral 60.0 +7,435 0.50% -
Jan 2, 2025 Jan 6, 2025 Magovcevic-Liebisch Ivana Director Neutral 90.0 +7,435 58.09% -
Jan 2, 2025 Jan 6, 2025 Madaus Martin D Director Neutral 82.5 +7,435 2.62% -
Jan 2, 2025 Jan 6, 2025 Elliott Jeffrey Thomas Director Neutral 90.0 +7,435 62.04% -
Jan 2, 2025 Jan 6, 2025 Flynn Karen Director Neutral 90.0 +7,435 28.16% -
Jan 2, 2025 Jan 6, 2025 MEISTER PAUL M Director Neutral 82.5 +8,829 2.99% -
Jan 2, 2025 Jan 6, 2025 Hlavinka Sarah E. Director Neutral 90.0 +8,829 19.19% -
Jan 2, 2025 Jan 6, 2025 DONNELLY WILLIAM P Director Neutral 90.0 +8,717 25.21% -
Dec 31, 2024 Jan 2, 2025 Toloue Masoud CEO Sell 52.5 -415 -0.12% $4.4K
Dec 15, 2024 Dec 17, 2024 Toloue Masoud CEO Sell 45.0 -752 -0.22% $8K
Dec 15, 2024 Dec 17, 2024 Sriram Vandana CFO Sell 45.0 -75 -0.21% $801
Nov 30, 2024 Dec 2, 2024 Toloue Masoud CEO Sell 52.5 -368 -0.11% $4.5K
Nov 15, 2024 Nov 18, 2024 Toloue Masoud CEO Sell 43.8 -1,120 -0.32% $12.8K
Nov 15, 2024 Nov 18, 2024 Sriram Vandana CFO Sell 45.0 -78 -0.22% $892.3
Oct 31, 2024 Oct 31, 2024 Toloue Masoud CEO Sell 52.5 -368 -0.11% $4.9K
Oct 15, 2024 Oct 16, 2024 Toloue Masoud CEO Sell 43.8 -1,120 -0.32% $14K
Oct 15, 2024 Oct 16, 2024 Sriram Vandana CFO Sell 45.0 -78 -0.21% $973.4
Oct 2, 2024 Oct 3, 2024 Magovcevic-Liebisch Ivana Director Neutral 90.0 +12,800 100.00% -
Oct 3, 2024 Magovcevic-Liebisch Ivana Director Neutral 52.5 - 0.00% -
Oct 1, 2024 Oct 2, 2024 MEISTER PAUL M Director Neutral 60.0 +1,200 0.41% -