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, Q2 2026
Institutional positions in Quanterix Corp as of Jun 30, 2026. 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
- 132
- +5 vs. Q1 2026
- Shares held
- 29.4M
- −7.02M (−19.3%) vs. Q1 2026
- Total value
- $127.1M
- −$1.33M (−1.0%) vs. Q1 2026
- New holders
- 36
- 44 more added
- Sold out
- 31
- 30 more reduced
1 institution that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 2026: 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, Q2 2026
Shares, value and share of portfolio for each institution holding Quanterix Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| True Wealth Design, LLC | 1,068 | $4.61K | 0.00% | +917+607.3% | Added |
| GWM Advisors LLC | 1,000 | $4.32K | 0.00% | 00.0% | Unchanged |
| Sterling Capital Management LLC | 860 | $3.71K | 0.00% | −415−32.5% | Reduced |
| Bryn Mawr Trust Co | 800 | $3.46K | 0.00% | 00.0% | Unchanged |
| UBS Asset Management Americas Inc | 771 | $3.33K | 0.00% | 00.0% | Unchanged |
| Essential Partners LLC | 640 | $2.77K | 0.00% | −1,077−62.7% | Reduced |
| Massmutual Trust Co FSB | 600 | $2.59K | 0.00% | +600 | New |
| California State Teachers Retirement System | 585 | $2.53K | 0.00% | −1,804−75.5% | Reduced |
| Pinnacle Bancorp, Inc. | 520 | $2.25K | 0.00% | 00.0% | Unchanged |
| GAMMA Investing LLC | 299 | $1.29K | 0.00% | −391−56.7% | Reduced |
| Farther Finance Advisors, LLC | 249 | $1.08K | 0.00% | +249 | New |
| Sit Investment Associates Inc | 272 | $1.00K | 0.00% | 00.0% | Unchanged |
| Rothschild Investment LLC | 207 | $894 | 0.00% | +186+885.7% | Added |
| US Bancorp | 202 | $873 | 0.00% | −324−61.6% | Reduced |
| Fortitude Family Office, LLC | 201 | $868 | 0.00% | +95+89.6% | Added |
| UMA Financial Services, Inc. | 198 | $856 | 0.00% | +198 | New |
| Bare Financial Services, Inc | 184 | $795 | 0.00% | +184 | New |
| Rockefeller Capital Management L.P. | 175 | $756 | 0.00% | −73−29.4% | Reduced |
| Wealth Enhancement Trust Services, Inc. | 161 | $696 | 0.00% | +161 | New |
| Bogart Wealth, LLC | 156 | $674 | 0.00% | +156 | New |
| Ritter Daniher Financial Advisory LLC | 150 | $648 | 0.00% | +150 | New |
| Optiver Holding B.V. | 101 | $436 | 0.00% | −344−77.3% | Reduced |
| North Star Investment Management Corp. | 100 | $432 | 0.00% | 00.0% | Unchanged |
| Concord Wealth Partners | 100 | $432 | 0.00% | +100 | New |
| Jones Financial Companies LLLP | 73 | $315 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 62 | $268 | 0.00% | 00.0% | Unchanged |
| SJS Investment Consulting Inc. | 60 | $260 | 0.00% | +53+757.1% | Added |
| Cypress Capital Management LLC (WY) | 60 | $259 | 0.00% | 00.0% | Unchanged |
| Huntington National Bank | 39 | $168 | 0.00% | 00.0% | Unchanged |
| Transamerica Financial Advisors, Inc. | 39 | $168 | 0.00% | 00.0% | Unchanged |
| STRS Ohio | 29 | $125 | 0.00% | 00.0% | Unchanged |
| Avion Wealth | 198 | $0 | 0.00% | +198 | New |
| William Blair Investment Management, LLC | 0 | $0 | 0.00% | −2,083,699−100.0% | Sold out |
| Invenomic Capital Management LP | 0 | $0 | 0.00% | −1,932,386−100.0% | Sold out |
| Levin Capital Strategies, L.P. | 0 | $0 | 0.00% | −1,464,052−100.0% | Sold out |
| Trium Capital LLP | 0 | $0 | 0.00% | −994,217−100.0% | Sold out |
| Empire Financial Management Company, LLC | 0 | $0 | 0.00% | −736,068−100.0% | Sold out |
| Envestnet Asset Management Inc | 0 | $0 | 0.00% | −682,711−100.0% | Sold out |
| Williams Jones Wealth Management, LLC. | 0 | $0 | 0.00% | −613,439−100.0% | Sold out |
| Topline Capital Management, LLC | 0 | $0 | 0.00% | −563,135−100.0% | Sold out |
| Pier Capital, LLC | 0 | $0 | 0.00% | −492,368−100.0% | Sold out |
| Parkman Healthcare Partners LLC | 0 | $0 | 0.00% | −341,453−100.0% | Sold out |
| Renaissance Technologies LLC | 0 | $0 | 0.00% | −136,207−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −87,386−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −84,124−100.0% | Sold out |
| HRT Financial LP | 0 | $0 | 0.00% | −71,686−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −47,668−100.0% | Sold out |
| Quantinno Capital Management LP | 0 | $0 | 0.00% | −47,594−100.0% | Sold out |
| Fox Run Management, L.L.C. | 0 | $0 | 0.00% | −39,592−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −35,185−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −18,988−100.0% | Sold out |
| Allspring Global Investments Holdings, LLC | 0 | $0 | 0.00% | −17,216−100.0% | Sold out |
| Intech Investment Management LLC | 0 | $0 | 0.00% | −11,666−100.0% | Sold out |
| Versant Capital Management, Inc | 0 | $0 | 0.00% | −1,832−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −627−100.0% | Sold out |
| NBC Securities, Inc. | 0 | $0 | 0.00% | −414−100.0% | Sold out |
| Signaturefd, LLC | 0 | $0 | 0.00% | −387−100.0% | Sold out |
| Parallel Advisors, LLC | 0 | $0 | 0.00% | −270−100.0% | Sold out |
| Los Angeles Capital Management LLC | 0 | $0 | 0.00% | −228−100.0% | Sold out |
| Northwestern Mutual Wealth Management Co | 0 | $0 | 0.00% | −13−100.0% | Sold out |
| Advisory Services Network, LLC | 0 | $0 | 0.00% | −9−100.0% | Sold out |
| IFP Advisors, Inc | 0 | $0 | 0.00% | −8−100.0% | Sold out |
| Covestor Ltd | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| CWM, LLC | – | – | – | – | Not filed |