QuanterixQTRX
13F holders, Q2 2025 (June 30)137holders −12
22new positions
37sold out
3famous investors
$6.65avg. 13F price*
At the end of Q2 2025, 137 institutions reported holding Quanterix Corp. (QTRX) in their 13F filings, down 12 from Q1 2025. 22 opened new positions and 37 sold out. The largest holders were Ameriprise Financial Inc. ($28.2M), Portolan Capital Management, LLC ($24.2M) and BlackRock, Inc. ($19.4M). 3 famous investors held it, including Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio), Cliff Asness (0.0% of AQR Capital Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Quanterix Corp.
- CUSIP
- 74766Q101
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q1 2025 → Q2 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 22 | $10.5M |
| Exits | 37 | $19.7M |
All 13F filers, Q1 2025 → Q2 2025: 6,102,821 shares bought and 6,505,567 shares sold, net −402,746 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 137 holders
| Ameriprise Financial Inc. | 0.01% | Add +14.0% | 4,236,877 | $28.2M |
| Portolan Capital Management, LLC | 1.51% | Add +22.6% | 3,633,622 | $24.2M |
| BlackRock, Inc. | 0.00% | Reduce -4.7% | 2,924,699 | $19.4M |
| Vanguard Group Inc. | 0.00% | Add +0.1% | 2,528,950 | $16.8M |
| Kent Lake PR LLC | 6.75% | Reduce -21.3% | 2,301,000 | $15.3M |
| Invenomic Capital Management LP | 0.43% | Add +26.9% | 1,144,904 | $7.6M |
| William Blair Investment Management, LLC | 0.02% | Add +2.0% | 1,127,981 | $7.5M |
| Easterly Investment Partners LLC | 0.52% | Reduce -18.3% | 1,083,635 | $7.2M |
| Blue Water Life Science Advisors, LP | 5.04% | Add +157.3% | 957,747 | $6.4M |
| Geode Capital Management, LLC | 0.00% | Add +2.5% | 887,080 | $5.9M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -4.5% | 803,735 | $5.3M |
| Morgan Stanley | 0.00% | Add +29.4% | 771,440 | $5.1M |
| Balyasny Asset Management L.P. | 0.01% | Add +1625.2% | 767,801 | $5.1M |
| State Street Corp. | 0.00% | Add +0.5% | 764,855 | $5.1M |
| Williams Jones Wealth Management, LLC. | 0.05% | Add +31.6% | 676,014 | $4.5M |
| Baillie Gifford & Co. | 0.00% | No change | 600,812 | $4.0M |
| Trium Capital LLP | 0.97% | Add +4.8% | 586,425 | $3.9M |
| Tikvah Management LLC | 1.26% | No change | 571,619 | $3.8M |
| Parkman Healthcare Partners LLC | 0.40% | New | 515,992 | $3.4M |
| Marshall Wace, LLP | 0.00% | New | 444,191 | $3.0M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -30.0% | 424,659 | $2.8M |
| Aberdeen Group plc | 0.00% | Add +56.6% | 420,856 | $2.8M |
| UBS Group AG | 0.00% | Reduce -65.5% | 384,951 | $2.6M |
| SCS Capital Management LLC | 0.03% | No change | 354,339 | $2.4M |
| Schonfeld Strategic Advisors LLC | 0.02% | New | 325,677 | $2.2M |
| Northern Trust Corp. | 0.00% | Reduce -0.6% | 321,030 | $2.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Add +2.1% | 298,989 | $2.0M |
| State of Wisconsin Investment Board | 0.00% | Add +126.4% | 289,759 | $1.9M |
| Citigroup Inc. | 0.00% | Add +958.9% | 280,578 | $1.9M |
| JPMorgan Chase & Co. | 0.00% | Reduce -9.6% | 260,501 | $1.7M |
| Goldman Sachs Group Inc. | 0.00% | Reduce -27.4% | 253,820 | $1.7M |
| Two Sigma Investments, LP | 0.00% | Add +78.4% | 242,689 | $1.6M |
| Envestnet Asset Management Inc. | 0.00% | Reduce -53.7% | 231,601 | $1.5M |
| Royal Bank of Canada | 0.00% | Add +29.8% | 221,694 | $1.5M |
| Susquehanna Portfolio Strategies, LLC | 0.02% | New | 158,532 | $1.1M |
| Jane Street Group, LLC | 0.00% | Add +140.0% | 139,964 | $931K |
| Wells Fargo & Company | 0.00% | Add +212.6% | 138,737 | $923K |
| Two Sigma Advisers, LP | 0.00% | Add +914.6% | 136,448 | $907K |
| Jump Financial, LLC | 0.01% | Add +20.1% | 126,641 | $842K |
| FMR LLC | 0.00% | Add +29.3% | 126,632 | $842K |
| Empire Financial Management Company, LLC | 0.24% | Add +148.0% | 123,980 | $824K |
| Cubist Systematic Strategies, LLC | 0.01% | Reduce -58.9% | 118,043 | $785K |
| Bank of New York Mellon Corp | 0.00% | Add +7.9% | 111,953 | $744K |
| Valmark Advisers, Inc. | 0.01% | Reduce -57.0% | 105,382 | $701K |
| Renaissance Technologies | 0.00% | Reduce -49.1% | 103,200 | $686K |
| AQR Capital Management | 0.00% | Reduce -10.8% | 88,259 | $587K |
| American Century Companies Inc. | 0.00% | Add +8.9% | 86,215 | $573K |
| Barclays PLC | 0.00% | Add +44.0% | 78,980 | $525K |
| Invesco Ltd. | 0.00% | Add +38.8% | 75,196 | $500K |
| Nuveen, LLC | 0.00% | Reduce -82.8% | 71,455 | $475K |
| Graypoint LLC | 0.02% | No change | 65,000 | $432K |
| Susquehanna International Group, LLP | 0.00% | Add +14.3% | 64,326 | $428K |
| Clarius Group, LLC | 0.02% | No change | 62,060 | $413K |
| Bank of America Corp. | 0.00% | Reduce -55.0% | 61,801 | $411K |
| Rhumbline Advisers | 0.00% | Add +7.2% | 60,629 | $403K |
| Mount Lucas Management LP | 0.19% | Add +36.9% | 60,000 | $399K |
| Limestone Investment Advisors LP | 0.17% | — | 56,067 | $373K |
| XTX Topco Ltd | 0.02% | Add +143.4% | 56,024 | $373K |
| PDT Partners, LLC | 0.02% | New | 47,668 | $317K |
| Alliancebernstein L.P. | 0.00% | Add +20.3% | 44,480 | $296K |
| Quantinno Capital Management LP | 0.00% | Add +307.4% | 41,964 | $279K |
| T. Rowe Price Associates Inc. | 0.00% | Add +4.4% | 39,599 | $264K |
| Credit Industriel Et Commercial | 0.05% | No change | 35,000 | $233K |
| BNP Paribas Financial Markets | 0.00% | Reduce -81.6% | 34,410 | $229K |
| Janney Capital Management LLC | 0.01% | Reduce -7.9% | 32,360 | $215K |
| Quantbot Technologies LP | 0.01% | Add +182.7% | 31,864 | $212K |
| HSBC Holdings PLC | 0.00% | Reduce -3.8% | 29,949 | $203K |
| Nebula Research & Development LLC | 0.02% | Reduce -19.0% | 29,145 | $194K |
| Deutsche Bank AG | 0.00% | Reduce -21.2% | 24,321 | $162K |
| MetLife Investment Management, LLC | 0.00% | Reduce -0.6% | 23,830 | $158K |
| Ironwood Investment Management LLC | 0.07% | New | 21,297 | $142K |
| Osaic Holdings, Inc. | 0.00% | Add +7.3% | 20,499 | $136K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Reduce -4.4% | 20,444 | $136K |
| Commonwealth Equity Services, LLC | 0.00% | Reduce -0.6% | 17,915 | $119K |
| Peddock Capital Advisors, LLC | 0.03% | New | 17,602 | $117K |
| Intech Investment Management LLC | 0.00% | Reduce -28.1% | 16,893 | $112K |
| Prelude Capital Management, LLC | 0.01% | Reduce -19.6% | 16,884 | $112K |
| Squarepoint Ops LLC | 0.00% | Reduce -7.0% | 15,372 | $102K |
| Vanguard Personalized Indexing Management, LLC | 0.00% | Add +40.5% | 15,024 | $100K |
| State of Wyoming | 0.01% | Add +105.3% | 14,814 | $99K |
| Brevan Howard Capital Management LP | 0.00% | New | 14,505 | $96K |
| Moors & Cabot, Inc. | 0.00% | Reduce -55.5% | 14,452 | $96K |
| Allspring Global Investments Holdings, LLC | 0.00% | Reduce -5.5% | 14,242 | $95K |
| Manufacturers Life Insurance Company, The | 0.00% | Add +0.3% | 13,571 | $90K |
| Post Resch Tallon Group Inc. | 0.08% | Reduce -6.0% | 12,175 | $81K |
| HUB Investment Partners, LLC | 0.00% | New | 12,161 | $81K |
| Millennium Management | 0.00% | Reduce -78.3% | 12,116 | $81K |
| DekaBank Deutsche Girozentrale | 0.00% | No change | 4,566 | $79K |
| Voya Investment Management LLC | 0.00% | No change | 10,154 | $68K |
| Kestra Private Wealth Services, LLC | 0.00% | New | 10,109 | $67K |
| State Board of Administration of Florida Retirement System | 0.00% | No change | 10,091 | $67K |
| Police & Firemen's Retirement System of New Jersey | 0.00% | No change | 10,062 | $67K |
| Versant Capital Management, Inc | 0.01% | Add +537.6% | 8,397 | $56K |
| New York State Common Retirement Fund | 0.00% | No change | 6,501 | $43K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +165.8% | 5,273 | $35K |
| Aquatic Capital Management LLC | 0.00% | Reduce -86.2% | 4,276 | $28K |
| Ameritas Investment Partners, Inc. | 0.00% | No change | 3,475 | $23K |
| Nisa Investment Advisors, LLC | 0.00% | Add +273.4% | 3,349 | $22K |
| Legal & General Group Plc | 0.00% | Reduce -50.5% | 3,307 | $22K |
| Simplex Trading, LLC | 0.00% | New | 3,152 | $20K |
"% of holder's portfolio" is QTRX's weight in each manager's 13F, not the share of Quanterix Corp. the manager owns.