QTRX
Quanterix Corporation
NASDAQ · Healthcare · Medical - Devices · US
$2.69
+4.26%3
Insider buys (3m)
0
Insider sells (3m)
$296.0K
Net value (3m)
-19.8%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 1, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 159 | $0.00 |
| Sep 1, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 48 | $2.67 |
| Aug 20, 2026 | Elliott Jeffrey Thomas · director | M-Exempt | 3,955 | $0.00 |
| Aug 19, 2026 | DONNELLY WILLIAM P · director | M-Exempt | 2,802 | $0.00 |
| Aug 17, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 834 | $0.00 |
| Aug 17, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 249 | $2.59 |
| Aug 17, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 25 | $2.59 |
| Aug 17, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 41 | $2.59 |
| Aug 17, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 135 | $0.00 |
| Aug 17, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 372 | $0.00 |
| Aug 17, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 111 | $2.59 |
| Aug 17, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 136 | $0.00 |
| Aug 17, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 81 | $0.00 |
| Aug 14, 2026 | DONNELLY WILLIAM P · director | Purchase | 27,155 | $2.75 |
| Aug 14, 2026 | DONNELLY WILLIAM P · director | Purchase | 72,245 | $2.93 |
| Aug 4, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 39 | $3.48 |
| Aug 4, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 130 | $0.00 |
| Jul 16, 2026 | Faessler Jason F. · officer: Chief Financial Officer | A-Award | 141,820 | $0.00 |
| Jul 16, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 41 | $4.24 |
| Jul 16, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 834 | $0.00 |
| Jul 16, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 81 | $0.00 |
| Jul 16, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 135 | $0.00 |
| Jul 16, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 136 | $0.00 |
| Jul 16, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 111 | $4.24 |
| Jul 16, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 249 | $4.24 |
| Jul 16, 2026 | Miller Michael Francis · officer: Chief Technology Officer | F-InKind | 25 | $4.24 |
| Jul 16, 2026 | Miller Michael Francis · officer: Chief Technology Officer | M-Exempt | 372 | $0.00 |
| Jul 9, 2026 | Mendel Scott · director | M-Exempt | 8,073 | $0.00 |
| Jul 9, 2026 | LAI GOLDMAN MYLA · director | M-Exempt | 8,073 | $0.00 |
| Jul 2, 2026 | Mendel Scott · director | A-Award | 3,456 | $4.34 |
Institutional positioning
13F filings over the trailing two quarters
New 58Increased 94Reduced 69Sold out 34
| Filer | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 3,635,411 | Aug 7, 2026 |
| AMERIPRISE FINANCIAL INC | Reduced | 3,542,374 | Jul 17, 2026 |
| Blue Water Life Science Advisors, LP | Increased | 3,474,202 | Aug 14, 2026 |
| BLACKROCK, INC. | Reduced | 3,277,595 | May 13, 2026 |
| PORTOLAN CAPITAL MANAGEMENT, LLC | Reduced | 2,945,823 | May 15, 2026 |
| First Eagle Investment Management, LLC | Increased | 2,753,165 | Aug 24, 2026 |
| BLUE WATER LIFE SCIENCE ADVISORS, LP | Increased | 2,142,147 | May 14, 2026 |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | Increased | 2,083,699 | May 8, 2026 |
| INVENOMIC CAPITAL MANAGEMENT LP | Increased | 1,932,386 | May 15, 2026 |
| Portolan Capital Management, LLC | Reduced | 1,899,308 | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 1,800,644 | Aug 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 1,784,613 | May 15, 2026 |
| Lionhunter Capital Management, LLC | New Position | 1,500,427 | Aug 13, 2026 |
| LEVIN CAPITAL STRATEGIES, L.P. | New Position | 1,464,052 | May 13, 2026 |
| AQR CAPITAL MANAGEMENT LLC | Increased | 1,343,005 | Aug 14, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 1, 2026