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Quanterix (QTRX) Institutional Ownership

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$2.93 +0.07 (+2.45%)
Closing price 11/13/2026 04:00 PM Eastern
Extended Trading
$2.93 +0.00 (+0.03%)
As of 11/13/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Quanterix (NASDAQ:QTRX)

Current
Institutional Ownership
Percentage
86.48%
Number of
Institutional Buyers
(last 12 months)
54
Total
Institutional Inflows
(last 12 months)
$52.75M
Number of
Institutional Sellers
(last 12 months)
27
Total
Institutional Outflows
(last 12 months)
$40.47M
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QTRX Institutional Buying and Selling by Quarter

Quanterix Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/15/2026Jump Financial LLC157,926$586K0.0%+974.3%0.333%
11/14/2026Lionhunter Capital Management LLC1,722,816$6.39M2.8%+14.8%3.629%
11/14/2026Marshall Wace LLP1,194,960$4.43M0.0%+22.7%2.517%
11/13/2026Empowered Funds LLC50,226$186K0.0%N/A0.106%
11/12/2026 State Street Corp900,538$3.34M0.0%-51.7%1.897%
11/10/2026 First Eagle Investment Management LLC2,192,500$8.13M0.0%-60.2%4.636%
11/6/2026 Russell Investments Group Ltd.50,514$187K0.0%+33.9%0.107%
10/28/2026 Pinnacle Wealth Planning Services Inc.10,099$37K0.0%+461.4%0.000%
9/9/2026Engineers Gate Manager LP14,807$64K0.0%-37.8%0.031%
9/9/2026Integrated Wealth Concepts LLC7,224$31K0.0%N/A0.015%
8/26/2026 HighTower Advisors LLC13,660$59K0.0%N/A0.029%
8/20/2026Susquehanna Fundamental Investments LLC38,961$168K0.0%N/A0.082%
8/17/2026Bank of America Corp DE29,286$127K0.0%N/A0.062%
8/14/2026Canada Pension Plan Investment Board38,100$165K0.0%N/A0.081%
8/14/2026The Manufacturers Life Insurance Company13,788$60K0.0%N/A0.029%
8/14/2026Algert Global LLC55,217$239K0.0%N/A0.117%
8/12/2026 Ieq Capital LLC35,507$153K0.0%N/A0.075%
8/7/2026BlackRock Inc.3,635,411$15.71M0.0%N/A7.717%
8/7/2026 Deutsche Bank AG36,678$158K0.0%N/A0.078%
8/6/2026 SCS Capital Management LLC120,035$519K0.0%N/A0.255%
8/6/2026 Bank of New York Mellon Corp131,900$570K0.0%N/A0.280%
8/6/2026GSA Capital Partners LLP410,252$1.77M0.1%N/A0.871%
5/19/2026Bank of America Corp DE49,552$174K0.0%+16.5%0.105%
5/18/2026Empire Financial Management Company LLC736,068$2.59M0.6%+19.1%1.562%
5/18/2026Royal Bank of Canada232,101$817K0.0%+129.8%0.493%
5/16/2026Quantinno Capital Management LP47,594$168K0.0%-25.4%0.101%
5/14/2026 Renaissance Technologies LLC136,207$479K0.0%+1,054.3%0.289%
5/13/2026 Levin Capital Strategies L.P.1,464,052$5.15M0.4%N/A3.108%
5/7/2026 Dimensional Fund Advisors LP443,118$1.56M0.0%+13.8%0.942%
2/23/2026Virtu Financial LLC20,626$131K0.0%N/A0.044%
2/19/2026 Invesco Ltd.113,200$720K0.0%+14.7%0.242%
2/18/2026XTX Topco Ltd74,093$471K0.0%+555.1%0.159%
2/18/2026Susquehanna Portfolio Strategies LLC55,150$351K0.0%-43.5%0.118%
2/18/2026Tudor Investment Corp ET AL169,695$1.08M0.0%N/A0.363%
2/18/2026Quadrature Capital Ltd21,707$138K0.0%N/A0.046%
2/18/2026Numerai GP LLC29,762$189K0.0%-66.2%0.064%
2/18/2026Millennium Management LLC402,631$2.56M0.0%-66.7%0.862%
2/18/2026Invenomic Capital Management LP1,505,208$9.57M0.4%+8.1%3.222%
2/17/2026Schonfeld Strategic Advisors LLC61,722$393K0.0%-54.8%0.132%
2/17/2026AQR Capital Management LLC65,522$417K0.0%-58.5%0.140%
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2/17/2026Jain Global LLC12,677$81K0.0%-27.0%0.027%
2/17/2026Jump Financial LLC144,095$916K0.0%+21.8%0.308%
2/17/2026Price T Rowe Associates Inc. MD43,778$279K0.0%-25.5%0.094%
2/17/2026 Russell Investments Group Ltd.256,140$1.63M0.0%-41.0%0.548%
2/17/2026State of Wisconsin Investment Board147,824$940K0.0%-24.5%0.316%
2/17/2026ExodusPoint Capital Management LP24,080$153K0.0%N/A0.052%
2/17/2026Royal Bank of Canada101,001$642K0.0%-59.2%0.216%
2/16/2026 Barclays PLC120,203$764K0.0%+78.7%0.257%
2/13/2026Marshall Wace LLP155,169$987K0.0%-74.5%0.332%
2/13/2026 Williams Jones Wealth Management LLC.638,939$4.06M0.0%-6.9%1.368%
2/13/2026Charles Schwab Investment Management Inc.362,740$2.31M0.0%+9.5%0.777%
2/13/2026 State Street Corp893,401$5.68M0.0%+9.0%1.913%
2/13/2026 Caitong International Asset Management Co. Ltd4,224$27K0.1%N/A0.009%
2/13/2026Wells Fargo & Company MN162,686$1.04M0.0%+12.7%0.348%
2/12/2026Empire Financial Management Company LLC617,830$3.93M0.9%+36.6%1.323%
2/12/2026 Jane Street Group LLC69,383$441K0.0%-53.7%0.149%
2/12/2026HRT Financial LP13,018$82K0.0%N/A0.028%
2/12/2026MetLife Investment Management LLC15,967$102K0.0%-30.4%0.034%
2/12/2026Paragon Associates & Paragon Associates II Joint Venture25,000$159K0.3%-75.2%0.054%
2/12/2026 Commonwealth Equity Services LLC11,238$71K0.0%-35.7%0.024%
2/12/2026 Renaissance Technologies LLC11,800$75K0.0%N/A0.025%
2/12/2026 Dimensional Fund Advisors LP389,466$2.48M0.0%-44.9%0.834%
2/12/2026 Ironwood Investment Management LLC172,330$1.10M0.5%-11.2%0.369%
2/11/2026 Deutsche Bank AG29,906$190K0.0%+6.5%0.064%
2/11/2026 LPL Financial LLC24,877$158K0.0%N/A0.053%
2/11/2026 Los Angeles Capital Management LLC34,978$222K0.0%N/A0.075%
2/10/2026Goldman Sachs Group Inc.248,242$1.58M0.0%-10.7%0.531%
2/10/2026 AXQ Capital LP11,009$70K0.0%N/A0.024%
2/10/2026 Easterly Investment Partners LLC616,681$3.92M0.2%-50.8%1.320%
2/9/2026 Geode Capital Management LLC1,073,967$6.83M0.0%+6.1%2.299%
2/9/2026 William Blair Investment Management LLC2,046,449$13.02M0.0%+55.6%4.381%
2/4/2026 First Eagle Investment Management LLC531,427$3.38M0.0%N/A1.138%
1/23/2026 Farther Finance Advisors LLC4,078$26K0.0%N/A0.009%
1/22/2026 Trium Capital LLP817,451$5.20M4.0%+18.7%1.750%
1/16/2026 Aberdeen Group plc104,039$662K0.0%-81.6%0.223%
1/15/2026 Allspring Global Investments Holdings LLC15,560$100K0.0%+10.3%0.033%
1/1/2026 JPMorgan Chase & Co.227,771$1.24M0.0%-12.6%0.488%
11/17/2025 Williams Jones Wealth Management LLC.686,464$3.73M0.0%+1.5%1.470%
11/17/2025 PharVision Advisers LLC36,144$196K0.1%N/A0.077%
11/17/2025Quarry LP5,548$30K0.0%+277,300.0%0.012%
11/17/2025Parkman Healthcare Partners LLC252,211$1.37M0.1%-51.1%0.540%
11/17/2025Numerai GP LLC88,064$478K0.1%N/A0.189%
11/17/2025Millennium Management LLC1,209,199$6.57M0.0%+9,880.2%2.589%
11/17/2025Invenomic Capital Management LP1,393,005$7.56M0.4%+21.7%2.982%
11/17/2025Jain Global LLC17,377$94K0.0%N/A0.037%
11/17/2025Brevan Howard Capital Management LP23,244$126K0.0%+60.2%0.050%
11/17/2025Bank of America Corp DE88,366$480K0.0%+43.0%0.189%
11/17/2025Ameriprise Financial Inc.4,243,512$23.04M0.0%+0.2%9.085%
11/14/2025Schonfeld Strategic Advisors LLC136,575$742K0.0%-58.1%0.292%
11/14/2025Two Sigma Investments LP250,074$1.36M0.0%+3.0%0.535%
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11/14/2025Bridgeway Capital Management LLC43,000$233K0.0%N/A0.092%
11/14/2025Portolan Capital Management LLC4,259,851$23.13M1.3%+17.2%9.120%
11/13/2025 Ironwood Investment Management LLC194,074$1.05M0.5%+811.3%0.415%
11/13/2025 UBS Group AG373,600$2.03M0.0%-2.9%0.800%
11/13/2025 BNP Paribas Financial Markets150,327$816K0.0%+336.9%0.322%
11/13/2025 Russell Investments Group Ltd.434,060$2.36M0.0%+2.2%0.929%
11/13/2025Paragon Associates & Paragon Associates II Joint Venture100,671$547K1.0%N/A0.216%
11/12/2025 Dimensional Fund Advisors LP707,071$3.84M0.0%-12.0%1.522%
11/12/2025 William Blair Investment Management LLC1,315,280$7.14M0.0%+16.6%2.831%
11/12/2025 Quantbot Technologies LP8,673$47K0.0%-72.8%0.019%


QTRX Institutional Ownership - Frequently Asked Questions

During the previous two years, 141 institutional investors and hedge funds held shares of Quanterix. The most heavily invested institutionals were Alliancebernstein L.P. ($25.94M), Portolan Capital Management LLC ($23.13M), Ameriprise Financial Inc. ($23.04M), BlackRock Inc. ($15.71M), Kent Lake PR LLC ($15.30M), Vanguard Group Inc. ($14.38M), and William Blair Investment Management LLC ($13.02M).Learn more on Quanterix's institutional investors.

86.48% of Quanterix's stock is owned by institutional investors. Learn more on QTRX's institutional investor holdings.

Of the 114 institutional investors that purchased Quanterix's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($3.64M), Ameriprise Financial Inc. ($2.22M), William Blair Investment Management LLC ($2.00M), Levin Capital Strategies L.P. ($1.48M), Millennium Management LLC ($1.32M), Portolan Capital Management LLC ($1.30M), and Invenomic Capital Management LP ($1.26M).

Institutional investors have bought a total of 11,121,391 shares in the last 24 months. This purchase volume represents approximately $52.75M in transactions.

Of the 27 institutional investors that sold Quanterix's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: First Eagle Investment Management LLC ($3.31M), State Street Corp ($964.08K), Millennium Management LLC ($806.57K), Easterly Investment Partners LLC ($635.50K), Aberdeen Group plc ($460.54K), Marshall Wace LLP ($453.54K), and Dimensional Fund Advisors LP ($317.61K).

Institutional investors have sold a total of 8,202,094 shares in the last 24 months. This volume of shares sold represents approximately $40.47M in transactions.


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Institutional ownership data for NASDAQ:QTRX is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 11/15/2026. New 13F filings are added each quarter as they're published.
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