Quanterix Corp
QTRX- Exchange
- Nasdaq
- Industry
- Laboratory Analytical Instruments
- SEC CIK
- 0001503274
In the last 90 days, Quanterix Corp insiders filed 1 open-market purchase and 0 sales; 132 institutions reported holding it in 13F filings for Q2 2026, worth $127.1M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Quanterix Corp as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 129
- −7 vs. Q2 2025
- Shares held
- 35.7M
- +1.03M (+3.0%) vs. Q2 2025
- Total value
- $193.7M
- −$36.8M (−16.0%) vs. Q2 2025
- New holders
- 19
- 47 more added
- Sold out
- 26
- 36 more reduced
2 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting QTRX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 132 | $127.1M |
| Q1 2026 | 128 | $128.4M |
| Q4 2025 | 134 | $223.3M |
| Q3 2025 | 129 | $193.7M |
| Q2 2025 | 138 | $230.9M |
| Q1 2025 | 150 | $228.2M |
| Q4 2024 | 152 | $372.0M |
| Q3 2024 | 149 | $430.8M |
| Q2 2024 | 155 | $428.6M |
| Q1 2024 | 165 | $761.4M |
| Q4 2023 | 172 | $864.1M |
| Q3 2023 | 158 | $878.5M |
| Q2 2023 | 138 | $733.4M |
| Q1 2023 | 136 | $370.3M |
| Q4 2022 | 132 | $437.9M |
| Q3 2022 | 145 | $328.8M |
| Q2 2022 | 136 | $519.0M |
| Q1 2022 | 143 | $935.5M |
| Q4 2021 | 153 | $1.34B |
| Q3 2021 | 152 | $1.53B |
| Q2 2021 | 159 | $1.76B |
| Q1 2021 | 162 | $1.66B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Quanterix Corp; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Parkman Healthcare Partners LLC | 252,211 | $1.37M | 0.15% | −263,781−51.1% | Reduced |
| Goldman Sachs Group Inc | 278,075 | $1.51M | 0.00% | +24,255+9.6% | Added |
| Cubist Systematic Strategies, LLC | 314,418 | $1.71M | 0.02% | +196,375+166.4% | Added |
| Charles Schwab Investment Management Inc | 331,246 | $1.80M | 0.00% | +32,257+10.8% | Added |
| Northern Trust Corp | 353,658 | $1.92M | 0.00% | +32,628+10.2% | Added |
| UBS Group AG | 373,600 | $2.03M | 0.00% | −11,351−2.9% | Reduced |
| Russell Investments Group, Ltd. | 434,060 | $2.36M | 0.00% | +9,401+2.2% | Added |
| Empire Financial Management Company, LLC | 452,430 | $2.46M | 0.56% | +328,450+264.9% | Added |
| Envestnet Asset Management Inc | 515,861 | $2.80M | 0.00% | +284,260+122.7% | Added |
| Standard Life Aberdeen plc | 564,581 | $3.07M | 0.00% | +143,725+34.2% | Added |
| Tikvah Management LLC | 571,619 | $3.10M | 0.92% | 00.0% | Unchanged |
| Marshall Wace, LLP | 608,708 | $3.31M | 0.00% | +164,517+37.0% | Added |
| Williams Jones Wealth Management, LLC. | 686,464 | $3.73M | 0.04% | +10,450+1.5% | Added |
| Trium Capital LLP | 688,597 | $3.74M | 1.47% | +102,172+17.4% | Added |
| Dimensional Fund Advisors LP | 707,071 | $3.84M | 0.00% | −96,664−12.0% | Reduced |
| Morgan Stanley | 806,263 | $4.38M | 0.00% | +34,823+4.5% | Added |
| State Street Corp | 819,534 | $4.45M | 0.00% | +54,679+7.1% | Added |
| Blue Water Life Science Advisors, LLC | 957,747 | $5.20M | 4.74% | 00.0% | Unchanged |
| Kent Lake PR LLC | 1,001,000 | $5.44M | 2.78% | −1,300,000−56.5% | Reduced |
| Geode Capital Management, LLC | 1,011,890 | $5.50M | 0.00% | +124,810+14.1% | Added |
| Millennium Management LLC | 1,209,199 | $6.57M | 0.01% | +1,197,083+9,880.2% | Added |
| Easterly Investment Partners LLC | 1,252,184 | $6.80M | 0.46% | +168,549+15.6% | Added |
| William Blair Investment Management, LLC | 1,315,280 | $7.14M | 0.02% | +187,299+16.6% | Added |
| Invenomic Capital Management LP | 1,393,005 | $7.56M | 0.40% | +248,101+21.7% | Added |
| Vanguard Group Inc | 2,647,515 | $14.4M | 0.00% | +118,565+4.7% | Added |
| BlackRock, Inc. | 3,112,980 | $16.9M | 0.00% | +188,281+6.4% | Added |
| Ameriprise Financial Inc | 4,243,512 | $23.0M | 0.01% | +6,635+0.2% | Added |
| Portolan Capital Management, LLC | 4,259,851 | $23.1M | 1.25% | +626,229+17.2% | Added |
| DekaBank Deutsche Girozentrale | 4,566 | – | – | 00.0% | Unchanged |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −767,801−100.0% | Sold out |
| Baillie Gifford & Co | 0 | $0 | 0.00% | −600,812−100.0% | Sold out |
| Valmark Advisers, Inc. | 0 | $0 | 0.00% | −105,382−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −103,200−100.0% | Sold out |
| Limestone Investment Advisors LP | 0 | $0 | 0.00% | −56,067−100.0% | Sold out |
| Credit Industriel Et Commercial | 0 | $0 | 0.00% | −35,000−100.0% | Sold out |
| Janney Capital Management LLC | 0 | $0 | 0.00% | −32,360−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −29,145−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −15,372−100.0% | Sold out |
| Moors & Cabot, Inc. | 0 | $0 | 0.00% | −14,452−100.0% | Sold out |
| Voya Investment Management LLC | 0 | $0 | 0.00% | −10,154−100.0% | Sold out |
| State Board of Administration of Florida Retirement System | 0 | $0 | 0.00% | −10,091−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −4,276−100.0% | Sold out |
| Canada Pension Plan Investment Board | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −2,831−100.0% | Sold out |
| China Universal Asset Management Co., Ltd. | 0 | $0 | 0.00% | −1,894−100.0% | Sold out |
| Comerica Bank | 0 | $0 | 0.00% | −1,414−100.0% | Sold out |
| Resona Asset Management Co.,Ltd. | 0 | $0 | 0.00% | −1,386−100.0% | Sold out |
| Raymond James Financial Inc | 0 | $0 | 0.00% | −1,204−100.0% | Sold out |
| T. Rowe Price Investment Management, Inc. | 0 | $0 | 0.00% | −455−100.0% | Sold out |
| Farther Finance Advisors, LLC | 0 | $0 | 0.00% | −519−100.0% | Sold out |
| Global Retirement Partners, LLC | 0 | $0 | 0.00% | −270−100.0% | Sold out |
| Compass Planning Associates Inc | 0 | $0 | 0.00% | −246−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −230−100.0% | Sold out |
| Rothschild Investment LLC | 0 | $0 | 0.00% | −70−100.0% | Sold out |
| Principal Securities, Inc. | 0 | $0 | 0.00% | −60−100.0% | Sold out |
| Graypoint LLC | – | – | – | – | Not filed |
| Financial Gravity Companies, Inc. | – | – | – | – | Not filed |