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 |
|---|---|---|---|---|---|
| Portolan Capital Management, LLC | 4,259,851 | $23.1M | 1.25% | +626,229+17.2% | Added |
| Ameriprise Financial Inc | 4,243,512 | $23.0M | 0.01% | +6,635+0.2% | Added |
| BlackRock, Inc. | 3,112,980 | $16.9M | 0.00% | +188,281+6.4% | Added |
| Vanguard Group Inc | 2,647,515 | $14.4M | 0.00% | +118,565+4.7% | Added |
| Invenomic Capital Management LP | 1,393,005 | $7.56M | 0.40% | +248,101+21.7% | Added |
| William Blair Investment Management, LLC | 1,315,280 | $7.14M | 0.02% | +187,299+16.6% | Added |
| Easterly Investment Partners LLC | 1,252,184 | $6.80M | 0.46% | +168,549+15.6% | Added |
| Millennium Management LLC | 1,209,199 | $6.57M | 0.01% | +1,197,083+9,880.2% | Added |
| Geode Capital Management, LLC | 1,011,890 | $5.50M | 0.00% | +124,810+14.1% | Added |
| Kent Lake PR LLC | 1,001,000 | $5.44M | 2.78% | −1,300,000−56.5% | Reduced |
| Blue Water Life Science Advisors, LLC | 957,747 | $5.20M | 4.74% | 00.0% | Unchanged |
| State Street Corp | 819,534 | $4.45M | 0.00% | +54,679+7.1% | Added |
| Morgan Stanley | 806,263 | $4.38M | 0.00% | +34,823+4.5% | Added |
| Dimensional Fund Advisors LP | 707,071 | $3.84M | 0.00% | −96,664−12.0% | Reduced |
| Trium Capital LLP | 688,597 | $3.74M | 1.47% | +102,172+17.4% | Added |
| Williams Jones Wealth Management, LLC. | 686,464 | $3.73M | 0.04% | +10,450+1.5% | Added |
| Marshall Wace, LLP | 608,708 | $3.31M | 0.00% | +164,517+37.0% | Added |
| Tikvah Management LLC | 571,619 | $3.10M | 0.92% | 00.0% | Unchanged |
| Standard Life Aberdeen plc | 564,581 | $3.07M | 0.00% | +143,725+34.2% | Added |
| Envestnet Asset Management Inc | 515,861 | $2.80M | 0.00% | +284,260+122.7% | Added |
| Empire Financial Management Company, LLC | 452,430 | $2.46M | 0.56% | +328,450+264.9% | Added |
| Russell Investments Group, Ltd. | 434,060 | $2.36M | 0.00% | +9,401+2.2% | Added |
| UBS Group AG | 373,600 | $2.03M | 0.00% | −11,351−2.9% | Reduced |
| Northern Trust Corp | 353,658 | $1.92M | 0.00% | +32,628+10.2% | Added |
| Charles Schwab Investment Management Inc | 331,246 | $1.80M | 0.00% | +32,257+10.8% | Added |
| Cubist Systematic Strategies, LLC | 314,418 | $1.71M | 0.02% | +196,375+166.4% | Added |
| Goldman Sachs Group Inc | 278,075 | $1.51M | 0.00% | +24,255+9.6% | Added |
| Parkman Healthcare Partners LLC | 252,211 | $1.37M | 0.15% | −263,781−51.1% | Reduced |
| Two Sigma Investments, LP | 250,074 | $1.36M | 0.00% | +7,385+3.0% | Added |
| Royal Bank of Canada | 247,678 | $1.34M | 0.00% | +25,984+11.7% | Added |
| JPMorgan Chase & Co | 227,771 | $1.24M | 0.00% | −32,730−12.6% | Reduced |
| Citigroup Inc | 218,578 | $1.19M | 0.00% | −62,000−22.1% | Reduced |
| State of Wisconsin Investment Board | 195,759 | $1.06M | 0.00% | −94,000−32.4% | Reduced |
| Ironwood Investment Management LLC | 194,074 | $1.05M | 0.46% | +172,777+811.3% | Added |
| AQR Capital Management LLC | 157,975 | $857.8K | 0.00% | +69,716+79.0% | Added |
| BNP Paribas Arbitrage, SA | 150,327 | $816.3K | 0.00% | +115,917+336.9% | Added |
| Jane Street Group, LLC | 149,779 | $813.3K | 0.00% | +9,815+7.0% | Added |
| Wells Fargo & Company | 144,318 | $783.6K | 0.00% | +5,581+4.0% | Added |
| Two Sigma Advisers, LP | 142,190 | $772.1K | 0.00% | +5,742+4.2% | Added |
| Susquehanna International Group, LLP | 141,969 | $770.9K | 0.00% | +77,643+120.7% | Added |
| Schonfeld Strategic Advisors LLC | 136,575 | $741.6K | 0.01% | −189,102−58.1% | Reduced |
| SCS Capital Management LLC | 120,035 | $651.8K | 0.01% | −234,304−66.1% | Reduced |
| Jump Financial, LLC | 118,352 | $642.7K | 0.01% | −8,289−6.5% | Reduced |
| Bank of New York Mellon Corp | 117,538 | $638.2K | 0.00% | +5,585+5.0% | Added |
| FMR LLC | 117,133 | $636.0K | 0.00% | −9,499−7.5% | Reduced |
| Paragon Associates & Paragon Associates II Joint Venture | 100,671 | $546.6K | 0.97% | +100,671 | New |
| Invesco Ltd. | 98,692 | $535.9K | 0.00% | +23,496+31.2% | Added |
| Susquehanna Portfolio Strategies, LLC | 97,669 | $530.3K | 0.01% | −60,863−38.4% | Reduced |
| American Century Companies Inc | 97,597 | $530.0K | 0.00% | +11,382+13.2% | Added |
| Bank of America Corp | 88,366 | $479.8K | 0.00% | +26,565+43.0% | Added |
| Numerai GP LLC | 88,064 | $478.2K | 0.07% | +88,064 | New |
| Citadel Advisors LLC | 83,181 | $451.7K | 0.00% | +83,181 | New |
| Nuveen, LLC | 71,455 | $388.0K | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 67,269 | $365.3K | 0.00% | −11,711−14.8% | Reduced |
| Clarius Group, LLC | 62,060 | $337.0K | 0.02% | 00.0% | Unchanged |
| Mount Lucas Management LP | 60,000 | $325.8K | 0.15% | 00.0% | Unchanged |
| Price T Rowe Associates Inc | 58,778 | $320.0K | 0.00% | +19,179+48.4% | Added |
| Rhumbline Advisers | 57,057 | $309.8K | 0.00% | −3,572−5.9% | Reduced |
| Peddock Capital Advisors, LLC | 52,105 | $282.9K | 0.06% | +34,503+196.0% | Added |
| PDT Partners, LLC | 47,668 | $258.8K | 0.02% | 00.0% | Unchanged |
| Alliancebernstein L.P. | 44,480 | $241.5K | 0.00% | 00.0% | Unchanged |
| Bridgeway Capital Management, LLC | 43,000 | $233.5K | 0.00% | +43,000 | New |
| PharVision Advisers, LLC | 36,144 | $196.3K | 0.11% | +36,144 | New |
| Deutsche Bank AG | 28,089 | $152.5K | 0.00% | +3,768+15.5% | Added |
| Quantinno Capital Management LP | 27,510 | $149.4K | 0.00% | −14,454−34.4% | Reduced |
| Brevan Howard Capital Management LP | 23,244 | $126.2K | 0.00% | +8,739+60.2% | Added |
| MetLife Investment Management | 22,942 | $124.6K | 0.00% | −888−3.7% | Reduced |
| Advisor Group Holdings, Inc. | 24,736 | $112.9K | 0.00% | +4,237+20.7% | Added |
| Atom Investors LP | 19,571 | $106.3K | 0.01% | +19,571 | New |
| Intech Investment Management LLC | 19,161 | $104.0K | 0.00% | +2,268+13.4% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 19,109 | $103.8K | 0.00% | −1,335−6.5% | Reduced |
| Commonwealth Equity Services, LLC | 17,465 | $95.0K | 0.00% | −450−2.5% | Reduced |
| Jain Global LLC | 17,377 | $94.4K | 0.00% | +17,377 | New |
| Prelude Capital Management, LLC | 15,393 | $83.6K | 0.01% | −1,491−8.8% | Reduced |
| State of Wyoming | 14,109 | $76.6K | 0.01% | −705−4.8% | Reduced |
| Allspring Global Investments Holdings, LLC | 14,103 | $76.6K | 0.00% | −139−1.0% | Reduced |
| Manufacturers Life Insurance Company, The | 13,801 | $74.9K | 0.00% | +230+1.7% | Added |
| JustInvest LLC | 13,008 | $70.6K | 0.00% | −2,016−13.4% | Reduced |
| TCG Advisory Services, LLC | 12,161 | $66.0K | 0.00% | 00.0% | Unchanged |
| Post Resch Tallon Group Inc. | 12,075 | $65.6K | 0.06% | −100−0.8% | Reduced |
| R Squared Ltd | 11,771 | $63.9K | 0.03% | +11,771 | New |
| XTX Topco Ltd | 11,310 | $61.4K | 0.00% | −44,714−79.8% | Reduced |
| Kestra Private Wealth Services, LLC | 10,294 | $55.9K | 0.00% | +185+1.8% | Added |
| HSBC Holdings PLC | 10,516 | $55.8K | 0.00% | −19,433−64.9% | Reduced |
| Police & Firemen's Retirement System of New Jersey | 10,062 | $54.6K | 0.00% | 00.0% | Unchanged |
| Quantbot Technologies LP | 8,673 | $47.1K | 0.00% | −23,191−72.8% | Reduced |
| New York State Common Retirement Fund | 6,501 | $35.3K | 0.00% | 00.0% | Unchanged |
| Quarry LP | 5,548 | $30.1K | 0.01% | +5,546+277,300.0% | Added |
| Ameritas Investment Partners, Inc. | 3,475 | $18.9K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 3,307 | $18.0K | 0.00% | 00.0% | Unchanged |
| Tower Research Capital LLC (TRC) | 3,028 | $16.4K | 0.00% | −2,245−42.6% | Reduced |
| Sterling Capital Management LLC | 2,579 | $14.0K | 0.00% | +1,705+195.1% | Added |
| California State Teachers Retirement System | 2,538 | $13.8K | 0.00% | −65−2.5% | Reduced |
| Rockefeller Capital Management L.P. | 2,463 | $13.4K | 0.00% | +2,463 | New |
| Simplex Trading, LLC | 1,563 | $8.00K | 0.00% | −1,589−50.4% | Reduced |
| Versant Capital Management, Inc | 1,421 | $7.72K | 0.00% | −6,976−83.1% | Reduced |
| CWM, LLC | 1,294 | $7.00K | 0.00% | −1,532−54.2% | Reduced |
| Amalgamated Bank | 1,189 | $6.00K | 0.00% | 00.0% | Unchanged |
| GWM Advisors LLC | 1,100 | $5.97K | 0.00% | 00.0% | Unchanged |
| The PNC Financial Services Group, Inc. | 934 | $5.07K | 0.00% | −299−24.2% | Reduced |