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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.

Skip ChartChart Data in Insider Trading History Table

Quanterix Share Price & Price History

Current Price: $7.70
Price Change: ▲ Price Increase of +0.22 (2.94%)
As of 12/4/2025 05:00 PM ET

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

Skip Chart and Table DataPrice Data in Insider Trading History Table
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  
See Full Table

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
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
8/12/2025American Century Companies Inc.86,215$0.57M0.0%+9.0%0.186%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers60,629$0.40M0.0%+7.2%0.130%Search for SEC Filing on Google Icon
8/12/2025JPMorgan Chase & Co.260,501$1.73M0.0%-9.6%0.561%Search for SEC Filing on Google Icon
8/11/2025Mount Lucas Management LP60,000$0.40M0.2%+36.9%0.129%Search for SEC Filing on Google Icon
8/8/2025Intech Investment Management LLC16,893$0.11M0.0%-28.0%0.034%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC887,080$5.90M0.0%+2.4%1.776%Search for SEC Filing on Google Icon
8/6/2025Moors & Cabot Inc.14,452$96K0.0%-55.5%0.029%Search for SEC Filing on Google Icon
8/1/2025Envestnet Asset Management Inc.231,601$1.54M0.0%-53.7%0.464%Search for SEC Filing on Google Icon
7/29/2025William Blair Investment Management LLC1,127,981$7.50M0.0%+2.0%2.258%Search for SEC Filing on Google Icon
7/29/2025Easterly Investment Partners LLC1,083,635$7.21M0.5%-18.3%2.169%Search for SEC Filing on Google Icon
7/25/2025Vanguard Personalized Indexing Management LLC15,024$100K0.0%+40.5%0.030%Search for SEC Filing on Google Icon
7/24/2025Aberdeen Group plc420,856$2.80M0.0%+56.6%0.843%Search for SEC Filing on Google Icon
7/23/2025Valmark Advisers Inc.105,382$0.70M0.0%-57.0%0.211%Search for SEC Filing on Google Icon
7/17/2025Janney Capital Management LLC32,360$0.22M0.0%-7.9%0.065%Search for SEC Filing on Google Icon
7/15/2025Peddock Capital Advisors LLC17,602$0.12M0.0%N/A0.035%Search for SEC Filing on Google Icon
5/19/2025Jane Street Group LLC58,313$0.38M0.0%+4.2%0.150%Search for SEC Filing on Google Icon
5/19/2025SCS Capital Management LLC354,339$2.31M0.0%N/A0.913%Search for SEC Filing on Google Icon
5/16/2025Goldman Sachs Group Inc.349,696$2.28M0.0%+20.6%0.901%Search for SEC Filing on Google Icon
5/16/2025Invenomic Capital Management LP902,043$5.87M0.3%N/A2.326%Search for SEC Filing on Google Icon
5/16/2025AQR Capital Management LLC98,990$0.64M0.0%+204.4%0.255%Search for SEC Filing on Google Icon
5/15/2025Cubist Systematic Strategies LLC287,231$1.87M0.0%N/A0.740%Search for SEC Filing on Google Icon
5/15/2025Royal Bank of Canada170,745$1.11M0.0%+26.3%0.440%Search for SEC Filing on Google Icon
5/15/2025Ashford Capital Management Inc.436,930$2.84M0.4%-19.8%1.126%Search for SEC Filing on Google Icon
5/15/2025State of Wyoming7,215$47K0.0%N/A0.019%Search for SEC Filing on Google Icon
5/15/2025Topline Capital Management LLC386,037$2.51M0.6%N/A0.995%Search for SEC Filing on Google Icon
5/14/2025Walleye Capital LLC179,389$1.17M0.0%+265.2%0.462%Search for SEC Filing on Google Icon
5/14/2025Jump Financial LLC105,457$0.69M0.0%N/A0.272%Search for SEC Filing on Google Icon
5/14/2025EntryPoint Capital LLC31,041$0.20M0.1%-12.6%0.080%Search for SEC Filing on Google Icon
5/14/2025Hsbc Holdings PLC31,133$0.20M0.0%+60.7%0.080%Search for SEC Filing on Google Icon
5/14/2025Quantbot Technologies LP11,272$73K0.0%+245.9%0.029%Search for SEC Filing on Google Icon
5/13/2025Algert Global LLC46,988$0.31M0.0%-68.6%0.121%Search for SEC Filing on Google Icon
5/13/2025American Century Companies Inc.79,130$0.52M0.0%+9.9%0.204%Search for SEC Filing on Google Icon
5/13/2025Aberdeen Group plc268,717$1.75M0.0%+29.9%0.693%Search for SEC Filing on Google Icon
5/13/2025Russell Investments Group Ltd.606,787$3.95M0.0%+51.1%1.564%Search for SEC Filing on Google Icon
5/12/2025Nuveen LLC415,378$2.70M0.0%N/A1.071%Search for SEC Filing on Google Icon
5/12/2025Invesco Ltd.54,194$0.35M0.0%+61.0%0.140%Search for SEC Filing on Google Icon
5/9/2025Deutsche Bank AG30,851$0.20M0.0%-13.6%0.080%Search for SEC Filing on Google Icon
5/9/2025Charles Schwab Investment Management Inc.292,805$1.91M0.0%+9.8%0.755%Search for SEC Filing on Google Icon
5/8/2025XTX Topco Ltd23,017$0.15M0.0%+49.2%0.059%Search for SEC Filing on Google Icon
5/7/2025Baillie Gifford & Co.600,812$3.91M0.0%-4.6%1.549%Search for SEC Filing on Google Icon
5/6/2025Mount Lucas Management LP43,837$0.29M0.1%N/A0.113%Search for SEC Filing on Google Icon
5/2/2025Easterly Investment Partners LLC1,325,620$8.63M0.7%+38.8%3.418%Search for SEC Filing on Google Icon
5/1/2025Emerald Advisers LLC25,542$0.17M0.0%-90.8%0.066%Search for SEC Filing on Google Icon
5/1/2025Emerald Mutual Fund Advisers Trust8,277$54K0.0%-96.2%0.021%Search for SEC Filing on Google Icon
4/30/2025Trium Capital LLP559,500$3.64M0.5%N/A1.442%Search for SEC Filing on Google Icon
4/29/2025Envestnet Asset Management Inc.500,398$3.26M0.0%+46.2%1.290%Search for SEC Filing on Google Icon
4/29/2025Bank of New York Mellon Corp103,746$0.68M0.0%-4.1%0.267%Search for SEC Filing on Google Icon
4/28/2025Aaron Wealth Advisors LLC12,077$79K0.0%N/A0.031%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
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: $7.70
Low: $7.19
High: $7.89

50 Day Range

MA: $5.89
Low: $4.94
High: $7.70

52 Week Range

Now: $7.70
Low: $4.05
High: $12.94

Volume

1,157,780 shs

Average Volume

808,333 shs

Market Capitalization

$359.67 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.01

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. Portolan Capital Management LLC — 9.12%
  2. Ameriprise Financial Inc. — 9.08%
  3. Vanguard Group Inc. — 5.70%
  4. Invenomic Capital Management LP — 2.98%
  5. William Blair Investment Management LLC — 2.83%
  6. Millennium Management LLC — 2.59%
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. Parkman Healthcare Partners LLC
  2. Schonfeld Strategic Advisors LLC
  3. Dimensional Fund Advisors LP
  4. JPMorgan Chase & Co.
  5. Quantbot Technologies LP
  6. UBS Group AG
  7. Rhumbline Advisers
  8. Vanguard Personalized Indexing Management LLC

Which major investors are buying Quanterix stock?

Within the previous quarter, QTRX stock was purchased by institutional investors including:
  1. Millennium Management LLC
  2. Portolan Capital Management LLC
  3. Envestnet Asset Management Inc.
  4. Invenomic Capital Management LP
  5. William Blair Investment Management LLC
  6. Ironwood Investment Management LLC
  7. Aberdeen Group plc
  8. Vanguard Group Inc.
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.