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QTRX Insider Trading

Insider Ownership Percentage: 6.80%
Insider Buying (Last 12 Months): $2,625,443.83
Insider Selling (Last 12 Months): $0.00

Quanterix Insider Trading History Chart

This chart shows the insider buying and selling history at Quanterix by year and by quarter.

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Quanterix Share Price & Price History

Current Price: $5.70
Price Change: ▲ Price Increase of +0.03 (0.53%)
As of 02/24/2026 05:00 PM ET

This chart shows the closing price history over time for QTRX up to the past year.

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Days: 30 | 90 | 365

Quanterix Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
6/13/2025David R WaltDirectorBuy123,990$6.14$761,298.601,866,933View SEC Filing Icon  
6/12/2025David R WaltDirectorBuy36,010$6.23$224,342.301,742,943View SEC Filing Icon  
6/9/2025David R WaltDirectorBuy78,131$5.34$417,219.541,706,933View SEC Filing Icon  
6/6/2025David R WaltDirectorBuy131,869$5.43$716,048.671,628,802View SEC Filing Icon  
6/6/2025William P. DonnellyDirectorBuy93,113$5.44$506,534.72139,094View SEC Filing Icon  
8/20/2024David R WaltDirectorBuy47,000$13.29$624,630.001,487,342View SEC Filing Icon  
4/1/2024Laurie J OlsonDirectorSell1,000$23.50$23,500.0015,238View SEC Filing Icon  
2/14/2024Laurie J OlsonDirectorSell1,500$24.35$36,525.0015,238View SEC Filing Icon  
9/8/2023William P. DonnellyDirectorBuy20,200$24.85$501,970.0028,438View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Quanterix (NASDAQ:QTRX)

86.48% of Quanterix stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at QTRX by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Quanterix Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
2/23/2026Virtu Financial LLC20,626$0.13M0.0%N/A0.044%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.113,200$0.72M0.0%+14.7%0.242%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd74,093$0.47M0.0%+555.1%0.159%Search for SEC Filing on Google Icon
2/18/2026Susquehanna Portfolio Strategies LLC55,150$0.35M0.0%-43.5%0.118%Search for SEC Filing on Google Icon
2/18/2026Tudor Investment Corp ET AL169,695$1.08M0.0%N/A0.363%Search for SEC Filing on Google Icon
2/18/2026Quadrature Capital Ltd21,707$0.14M0.0%N/A0.046%Search for SEC Filing on Google Icon
2/18/2026Numerai GP LLC29,762$0.19M0.0%-66.2%0.064%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC402,631$2.56M0.0%-66.7%0.862%Search for SEC Filing on Google Icon
2/18/2026Invenomic Capital Management LP1,505,208$9.57M0.4%+8.1%3.222%Search for SEC Filing on Google Icon
2/17/2026Schonfeld Strategic Advisors LLC61,722$0.39M0.0%-54.8%0.132%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC65,522$0.42M0.0%-58.5%0.140%Search for SEC Filing on Google Icon
2/17/2026Jain Global LLC12,677$81K0.0%-27.0%0.027%Search for SEC Filing on Google Icon
2/17/2026Jump Financial LLC144,095$0.92M0.0%+21.8%0.308%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD43,778$0.28M0.0%-25.5%0.094%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.256,140$1.63M0.0%-41.0%0.548%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board147,824$0.94M0.0%-24.5%0.316%Search for SEC Filing on Google Icon
2/17/2026ExodusPoint Capital Management LP24,080$0.15M0.0%N/A0.052%Search for SEC Filing on Google Icon
2/17/2026Royal Bank of Canada101,001$0.64M0.0%-59.2%0.216%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC120,203$0.76M0.0%+78.7%0.257%Search for SEC Filing on Google Icon
2/13/2026Marshall Wace LLP155,169$0.99M0.0%-74.5%0.332%Search for SEC Filing on Google Icon
2/13/2026Williams Jones Wealth Management LLC.638,939$4.06M0.0%-6.9%1.368%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.362,740$2.31M0.0%+9.5%0.777%Search for SEC Filing on Google Icon
2/13/2026State Street Corp893,401$5.68M0.0%+9.0%1.913%Search for SEC Filing on Google Icon
2/13/2026Caitong International Asset Management Co. Ltd4,224$27K0.1%N/A0.009%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN162,686$1.04M0.0%+12.7%0.348%Search for SEC Filing on Google Icon
2/12/2026Empire Financial Management Company LLC617,830$3.93M0.9%+36.6%1.323%Search for SEC Filing on Google Icon
2/12/2026Jane Street Group LLC69,383$0.44M0.0%-53.7%0.149%Search for SEC Filing on Google Icon
2/12/2026HRT Financial LP13,018$82K0.0%N/A0.028%Search for SEC Filing on Google Icon
2/12/2026MetLife Investment Management LLC15,967$0.10M0.0%-30.4%0.034%Search for SEC Filing on Google Icon
2/12/2026Paragon Associates & Paragon Associates II Joint Venture25,000$0.16M0.3%-75.2%0.054%Search for SEC Filing on Google Icon
2/12/2026Commonwealth Equity Services LLC11,238$71K0.0%-35.7%0.024%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC11,800$75K0.0%N/A0.025%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP389,466$2.48M0.0%-44.9%0.834%Search for SEC Filing on Google Icon
2/12/2026Ironwood Investment Management LLC172,330$1.10M0.5%-11.2%0.369%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG29,906$0.19M0.0%+6.5%0.064%Search for SEC Filing on Google Icon
2/11/2026LPL Financial LLC24,877$0.16M0.0%N/A0.053%Search for SEC Filing on Google Icon
2/11/2026Los Angeles Capital Management LLC34,978$0.22M0.0%N/A0.075%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.248,242$1.58M0.0%-10.7%0.531%Search for SEC Filing on Google Icon
2/10/2026AXQ Capital LP11,009$70K0.0%N/A0.024%Search for SEC Filing on Google Icon
2/10/2026Easterly Investment Partners LLC616,681$3.92M0.2%-50.8%1.320%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC1,073,967$6.83M0.0%+6.1%2.299%Search for SEC Filing on Google Icon
2/9/2026William Blair Investment Management LLC2,046,449$13.02M0.0%+55.6%4.381%Search for SEC Filing on Google Icon
2/4/2026First Eagle Investment Management LLC531,427$3.38M0.0%N/A1.138%Search for SEC Filing on Google Icon
1/23/2026Farther Finance Advisors LLC4,078$26K0.0%N/A0.009%Search for SEC Filing on Google Icon
1/22/2026Trium Capital LLP817,451$5.20M4.0%+18.7%1.750%Search for SEC Filing on Google Icon
1/16/2026Aberdeen Group plc104,039$0.66M0.0%-81.6%0.223%Search for SEC Filing on Google Icon
1/15/2026Allspring Global Investments Holdings LLC15,560$100K0.0%+10.3%0.033%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.227,771$1.24M0.0%-12.6%0.488%Search for SEC Filing on Google Icon
11/17/2025Williams Jones Wealth Management LLC.686,464$3.73M0.0%+1.5%1.470%Search for SEC Filing on Google Icon
11/17/2025PharVision Advisers LLC36,144$0.20M0.1%N/A0.077%Search for SEC Filing on Google Icon
11/17/2025Quarry LP5,548$30K0.0%+277,300.0%0.012%Search for SEC Filing on Google Icon
11/17/2025Parkman Healthcare Partners LLC252,211$1.37M0.1%-51.1%0.540%Search for SEC Filing on Google Icon
11/17/2025Numerai GP LLC88,064$0.48M0.1%N/A0.189%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC1,209,199$6.57M0.0%+9,880.2%2.589%Search for SEC Filing on Google Icon
11/17/2025Invenomic Capital Management LP1,393,005$7.56M0.4%+21.7%2.982%Search for SEC Filing on Google Icon
11/17/2025Jain Global LLC17,377$94K0.0%N/A0.037%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP23,244$0.13M0.0%+60.2%0.050%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE88,366$0.48M0.0%+43.0%0.189%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.4,243,512$23.04M0.0%+0.2%9.085%Search for SEC Filing on Google Icon
11/14/2025Schonfeld Strategic Advisors LLC136,575$0.74M0.0%-58.1%0.292%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP250,074$1.36M0.0%+3.0%0.535%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC43,000$0.23M0.0%N/A0.092%Search for SEC Filing on Google Icon
11/14/2025Portolan Capital Management LLC4,259,851$23.13M1.3%+17.2%9.120%Search for SEC Filing on Google Icon
11/13/2025Ironwood Investment Management LLC194,074$1.05M0.5%+811.3%0.415%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG373,600$2.03M0.0%-2.9%0.800%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets150,327$0.82M0.0%+336.9%0.322%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.434,060$2.36M0.0%+2.2%0.929%Search for SEC Filing on Google Icon
11/13/2025Paragon Associates & Paragon Associates II Joint Venture100,671$0.55M1.0%N/A0.216%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP707,071$3.84M0.0%-12.0%1.522%Search for SEC Filing on Google Icon
11/12/2025William Blair Investment Management LLC1,315,280$7.14M0.0%+16.6%2.831%Search for SEC Filing on Google Icon
11/12/2025Quantbot Technologies LP8,673$47K0.0%-72.8%0.019%Search for SEC Filing on Google Icon
11/12/2025R Squared Ltd11,771$64K0.0%N/A0.025%Search for SEC Filing on Google Icon
11/12/2025Intech Investment Management LLC19,161$0.10M0.0%+13.4%0.041%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.2,647,515$14.38M0.0%+4.7%5.697%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.227,771$1.24M0.0%-12.6%0.490%Search for SEC Filing on Google Icon
11/7/2025Aberdeen Group plc564,581$3.07M0.0%+34.2%1.215%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers57,057$0.31M0.0%-5.9%0.123%Search for SEC Filing on Google Icon
11/5/2025Envestnet Asset Management Inc.515,861$2.80M0.0%+122.7%1.110%Search for SEC Filing on Google Icon
10/31/2025Vanguard Personalized Indexing Management LLC13,008$71K0.0%-13.4%0.028%Search for SEC Filing on Google Icon
10/17/2025Peddock Capital Advisors LLC52,105$0.28M0.1%+196.0%0.112%Search for SEC Filing on Google Icon
10/16/2025Trium Capital LLP688,597$3.74M1.5%+17.4%1.482%Search for SEC Filing on Google Icon
8/19/2025State of Wyoming14,814$99K0.0%+105.3%0.032%Search for SEC Filing on Google Icon
8/15/2025BNP Paribas Financial Markets34,410$0.23M0.0%-81.6%0.074%Search for SEC Filing on Google Icon
8/15/2025Brevan Howard Capital Management LP14,505$96K0.0%N/A0.031%Search for SEC Filing on Google Icon
8/15/2025Balyasny Asset Management L.P.767,801$5.11M0.0%+1,625.2%1.652%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE61,801$0.41M0.0%-55.0%0.133%Search for SEC Filing on Google Icon
8/15/2025Ameriprise Financial Inc.4,236,877$28.18M0.0%+14.0%9.117%Search for SEC Filing on Google Icon
8/14/2025PDT Partners LLC47,668$0.32M0.0%N/A0.103%Search for SEC Filing on Google Icon
8/14/2025Kent Lake PR LLC2,301,000$15.30M6.8%-21.3%4.952%Search for SEC Filing on Google Icon
8/14/2025Jane Street Group LLC139,964$0.93M0.0%+140.0%0.301%Search for SEC Filing on Google Icon
8/14/2025Quantinno Capital Management LP41,964$0.28M0.0%+307.4%0.090%Search for SEC Filing on Google Icon
8/14/2025HUB Investment Partners LLC12,161$81K0.0%N/A0.026%Search for SEC Filing on Google Icon
8/14/2025Nebula Research & Development LLC29,145$0.19M0.0%-19.0%0.063%Search for SEC Filing on Google Icon
8/14/2025Blue Water Life Science Advisors LP957,747$6.37M5.0%+157.3%2.061%Search for SEC Filing on Google Icon
8/13/2025Jump Financial LLC126,641$0.84M0.0%+20.1%0.273%Search for SEC Filing on Google Icon
8/13/2025Marshall Wace LLP444,191$2.95M0.0%N/A0.956%Search for SEC Filing on Google Icon
8/13/2025Invesco Ltd.75,196$0.50M0.0%+38.8%0.162%Search for SEC Filing on Google Icon
8/13/2025Quantbot Technologies LP31,864$0.21M0.0%+182.7%0.069%Search for SEC Filing on Google Icon
8/13/2025Russell Investments Group Ltd.424,659$2.82M0.0%-30.0%0.914%Search for SEC Filing on Google Icon
8/12/2025XTX Topco Ltd56,024$0.37M0.0%+143.4%0.121%Search for SEC Filing on Google Icon
Data available starting January 2016

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Quanterix logo
Quanterix Corporation, a life sciences company, engages in development and marketing of digital immunoassay platforms that advances precision health for life sciences research and diagnostics in North America, Europe, the Middle East, Africa, and the Asia Pacific regions. The company offers HD-X instrument, a protein detection platform; and SR-X instrument that enables researchers to apply Simoa detection in an expanded range of applications. It also provides SP-X instrument that is based on Simoa planar array technology for the measurement of multiplex chemiluminescent immunoassays. The company's products include assays include all components required to run enzyme-based immunoassay, such as beads, capture and detector reagents, and enzyme reagents and substrate; and replacement parts, reagents, and antibodies. In addition, it offers contract research services, including sample testing, homebrew assay development, custom assay development, lucent diagnostic, and LDT testing services. The company primarily operates in the areas of neurology, oncology, cardiology, infectious diseases, and inflammation. It sells its products for the life science research sector primarily to laboratories associated with academic and governmental research institutions, as well as pharmaceutical, biotechnology, and contract research companies through a direct field sale, support organizations, and distributors or sales agents. The company was formerly known as Digital Genomics, Inc. and changed its name to Quanterix Corporation in August 2007. Quanterix Corporation was incorporated in 2007 and is headquartered in Billerica, Massachusetts.
Read More on Quanterix

Today's Range

Now: $5.70
Low: $5.66
High: $5.89

50 Day Range

MA: $6.57
Low: $5.67
High: $8.06

52 Week Range

Now: $5.70
Low: $4.05
High: $8.77

Volume

731,941 shs

Average Volume

673,765 shs

Market Capitalization

$266.25 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.09

Who are the company insiders with the largest holdings of Quanterix?

Quanterix's top insider shareholders include:
  1. David R Walt (Director)
  2. William P Donnelly (Director)
  3. Laurie J Olson (Director)
Learn More about top insider investors at Quanterix.

Who are the major institutional investors of Quanterix?

Quanterix's top institutional shareholders include:
  1. William Blair Investment Management LLC — 4.38%
  2. Invenomic Capital Management LP — 3.22%
  3. Geode Capital Management LLC — 2.30%
  4. State Street Corp — 1.91%
  5. Trium Capital LLP — 1.75%
  6. Williams Jones Wealth Management LLC. — 1.37%
Learn More about top institutional investors of Quanterix stock.

Which major investors are selling Quanterix stock?

In the previous quarter, QTRX stock was sold by these institutional investors:
  1. Millennium Management LLC
  2. Easterly Investment Partners LLC
  3. Aberdeen Group plc
  4. Marshall Wace LLP
  5. Dimensional Fund Advisors LP
  6. Russell Investments Group Ltd.
  7. Royal Bank of Canada
  8. AQR Capital Management LLC

Which major investors are buying Quanterix stock?

Within the previous quarter, QTRX stock was purchased by institutional investors including:
  1. William Blair Investment Management LLC
  2. First Eagle Investment Management LLC
  3. Tudor Investment Corp ET AL
  4. Empire Financial Management Company LLC
  5. Trium Capital LLP
  6. Invenomic Capital Management LP
  7. State Street Corp
  8. XTX Topco Ltd
In the last year, these company insiders have bought Quanterix stock:
  1. David R Walt (Director)
  2. William P Donnelly (Director)
Learn More investors buying Quanterix stock.