2m 2m 2m 2m 2m 2m 2m
QUANTERIX (QTRX)
NASDAQ
$2.86+$0.02 (+0.53%)
Price as of Oct 22, 2026 7:30 PM EDT- $131.9MMarket Cap
- -51.54%1-Year Change
- Medical DevicesIndustry
QUANTERIX (QTRX)
$2.86+$0.02 (+0.53%)
Top Holders
Institutional
Mutual Funds
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
BLACKROCK, INC. | 7.69% | 3.6M | +357,816 (+9.84%) | Jun 30, 2026 |
BLUE WATER LIFE SCIENCE ADVISORS, LP | 7.35% | 3.5M | +1.3M (+38.34%) | Jun 30, 2026 |
BLACKROCK FUNDING, INC. /DE | 6.69% | 3.2M | -46,695 (-1.48%) | Dec 31, 2024 |
BLACKROCK INC. | 6.63% | 3.1M | +14,954 (+0.48%) | Jun 30, 2024 |
FIRST EAGLE INVESTMENT MANAGEMENT, LLC | 5.82% | 2.8M | +1.5M (+52.78%) | Jun 30, 2026 |
VANGUARD GROUP INC | 5.66% | 2.7M | +30,318 (+1.13%) | Dec 31, 2025 |
INVENOMIC CAPITAL MANAGEMENT LP | 4.09% | 1.9M | +427,178 (+22.11%) | Mar 31, 2026 |
Holder | Ownership %
| Shares Held | Change (Shares, %) | Report Date |
|---|---|---|---|---|
FIRST EAGLE FUNDS | 5.78% | 2.7M | +1.3M (+49.20%) | Jul 31, 2026 |
VANGUARD INDEX FUNDS | 3.67% | 1.7M | -1,756 (-0.10%) | Jun 30, 2026 |
Fidelity Rutland Square Trust II | 3.60% | 1.7M | +93,582 (+5.50%) | May 31, 2026 |
COLUMBIA FUNDS SERIES TRUST I | 1.46% | 689,236 | +24,400 (+3.54%) | Jul 31, 2026 |
FIDELITY SALEM STREET TRUST | 0.99% | 466,792 | +407,126 (+87.22%) | Jul 31, 2026 |
VANGUARD SCOTTSDALE FUNDS | 0.53% | 248,860 | -5,720 (-2.30%) | May 31, 2026 |
SCHWAB STRATEGIC TRUST | 0.49% | 232,659 | -3,270 (-1.41%) | May 31, 2026 |
Current Ownership Distribution
- Institutions629.9M (72.30%)
- Mutual Funds229.5M (26.34%)
- Insiders11.8M (1.36%)
- Other0 (0.00%)
Insider Transactions
- 1.36% (11.8M)Current InsiderOwnership (%, shares)
- 1Number of InsiderBuying (last 12 months)
- $0.00Amount of InsiderBuying (last 12 months)
- 0Number of InsiderSelling (last 12 months)
- $0.00Amount of InsiderSelling (last 12 months)
Insider Name & Title | Type | Date
| Transaction Value | Shares | Share Price | Shares After Transactions |
|---|---|---|---|---|---|---|
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 81 | $0.00 | 355 |
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 136 | $0.00 | 709 |
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 135 | $0.00 | 2,171 |
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 372 | $0.00 | 7,085 |
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 834 | $0.00 | 23,355 |
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 81 | $0.00 | 38,533 |
Miller Michael Francis Chief Technology Officer | In Kind | Oct 15, 2026 | $76.75 | 25 | $3.07 | 38,508 |
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 136 | $0.00 | 38,644 |
Miller Michael Francis Chief Technology Officer | In Kind | Oct 15, 2026 | $125.87 | 41 | $3.07 | 38,603 |
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 135 | $0.00 | 38,738 |
Miller Michael Francis Chief Technology Officer | In Kind | Oct 15, 2026 | $125.87 | 41 | $3.07 | 38,697 |
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 372 | $0.00 | 39,069 |
Miller Michael Francis Chief Technology Officer | In Kind | Oct 15, 2026 | $340.77 | 111 | $3.07 | 38,958 |
Miller Michael Francis Chief Technology Officer | Exempt | Oct 15, 2026 | $0.00 | 834 | $0.00 | 39,792 |
Miller Michael Francis Chief Technology Officer | In Kind | Oct 15, 2026 | $764.43 | 249 | $3.07 | 39,543 |
Magovcevic-Liebisch Ivana | Exempt | Oct 02, 2026 | $0.00 | 4,224 | $0.00 | 4,352 |
Magovcevic-Liebisch Ivana | Exempt | Oct 02, 2026 | $0.00 | 4,224 | $0.00 | 15,883 |
Mendel Scott | Award | Oct 01, 2026 | $14,997.18 | 4,398 | $3.41 | 28,454 |
DONNELLY WILLIAM P | Award | Oct 01, 2026 | $23,747.24 | 6,964 | $3.41 | 169,365 |
Gute James Edward Jr. Chief Commercial Officer | Award | Sep 15, 2026 | $0.00 | 260,315 | $0.00 | 260,315 |
Miller Michael Francis Chief Technology Officer | Exempt | Sep 15, 2026 | $0.00 | 81 | $0.00 | 436 |
Miller Michael Francis Chief Technology Officer | Exempt | Sep 15, 2026 | $0.00 | 136 | $0.00 | 845 |
Miller Michael Francis Chief Technology Officer | Exempt | Sep 15, 2026 | $0.00 | 135 | $0.00 | 2,306 |
Miller Michael Francis Chief Technology Officer | Exempt | Sep 15, 2026 | $0.00 | 372 | $0.00 | 7,457 |
Miller Michael Francis Chief Technology Officer | Exempt | Sep 15, 2026 | $0.00 | 834 | $0.00 | 24,189 |
Miller Michael Francis Chief Technology Officer | Exempt | Sep 15, 2026 | $0.00 | 81 | $0.00 | 37,442 |
Miller Michael Francis Chief Technology Officer | In Kind | Sep 15, 2026 | $68.00 | 25 | $2.72 | 37,417 |
Miller Michael Francis Chief Technology Officer | Exempt | Sep 15, 2026 | $0.00 | 136 | $0.00 | 37,553 |
Miller Michael Francis Chief Technology Officer | In Kind | Sep 15, 2026 | $111.52 | 41 | $2.72 | 37,512 |
Miller Michael Francis Chief Technology Officer | Exempt | Sep 15, 2026 | $0.00 | 135 | $0.00 | 37,647 |