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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 2025

Institutional positions in Quanterix Corp as of Jun 30, 2025. 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
138
−11 vs. Q1 2025
Shares held
34.7M
−346.2K (−1.0%) vs. Q1 2025
Total value
$230.9M
+$2.71M (+1.2%) vs. Q1 2025
New holders
25
47 more added
Sold out
36
41 more reduced

1 institution that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: 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.

Institutional holdersQ2 2025: 138 institutions
Q1 2021: 162 institutionsQ2 2021: 159 institutionsQ3 2021: 152 institutionsQ4 2021: 153 institutionsQ1 2022: 143 institutionsQ2 2022: 136 institutionsQ3 2022: 145 institutionsQ4 2022: 132 institutionsQ1 2023: 136 institutionsQ2 2023: 138 institutionsQ3 2023: 158 institutionsQ4 2023: 172 institutionsQ1 2024: 165 institutionsQ2 2024: 155 institutionsQ3 2024: 149 institutionsQ4 2024: 152 institutionsQ1 2025: 150 institutionsQ2 2025: 138 institutionsQ3 2025: 129 institutionsQ4 2025: 134 institutionsQ1 2026: 128 institutionsQ2 2026: 132 institutions
Value heldQ2 2025: $230.9M
Q1 2021: $1.66BQ2 2021: $1.76BQ3 2021: $1.53BQ4 2021: $1.34BQ1 2022: $935.5MQ2 2022: $519.0MQ3 2022: $328.8MQ4 2022: $437.9MQ1 2023: $370.3MQ2 2023: $733.4MQ3 2023: $878.5MQ4 2023: $864.1MQ1 2024: $761.4MQ2 2024: $428.6MQ3 2024: $430.8MQ4 2024: $372.0MQ1 2025: $228.2MQ2 2025: $230.9MQ3 2025: $193.7MQ4 2025: $223.3MQ1 2026: $128.4MQ2 2026: $127.1M
Institutions holding QTRX and their total value by quarter
QuarterHoldersValue
Q2 2026132$127.1M
Q1 2026128$128.4M
Q4 2025134$223.3M
Q3 2025129$193.7M
Q2 2025138$230.9M
Q1 2025150$228.2M
Q4 2024152$372.0M
Q3 2024149$430.8M
Q2 2024155$428.6M
Q1 2024165$761.4M
Q4 2023172$864.1M
Q3 2023158$878.5M
Q2 2023138$733.4M
Q1 2023136$370.3M
Q4 2022132$437.9M
Q3 2022145$328.8M
Q2 2022136$519.0M
Q1 2022143$935.5M
Q4 2021153$1.34B
Q3 2021152$1.53B
Q2 2021159$1.76B
Q1 2021162$1.66B

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Quanterix Corp; share changes are against Q1 2025.

Institutions holding QTRX in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Two Sigma Advisers, LP136,448$907.4K0.00%+123,000+914.6%Added
Wells Fargo & Company138,737$922.6K0.00%+94,357+212.6%Added
Jane Street Group, LLC139,964$930.8K0.00%+81,651+140.0%Added
Susquehanna Portfolio Strategies, LLC158,532$1.05M0.02%+158,532New
Royal Bank of Canada221,694$1.48M0.00%+50,949+29.8%Added
Envestnet Asset Management Inc231,601$1.54M0.00%−268,797−53.7%Reduced
Two Sigma Investments, LP242,689$1.61M0.00%+106,674+78.4%Added
Goldman Sachs Group Inc253,820$1.69M0.00%−95,876−27.4%Reduced
JPMorgan Chase & Co260,501$1.73M0.00%−27,580−9.6%Reduced
Citigroup Inc280,578$1.87M0.00%+254,082+958.9%Added
State of Wisconsin Investment Board289,759$1.93M0.00%+161,751+126.4%Added
Charles Schwab Investment Management Inc298,989$1.99M0.00%+6,184+2.1%Added
Northern Trust Corp321,030$2.13M0.00%−2,081−0.6%Reduced
Schonfeld Strategic Advisors LLC325,677$2.17M0.02%+325,677New
SCS Capital Management LLC354,339$2.36M0.03%00.0%Unchanged
UBS Group AG384,951$2.56M0.00%−730,027−65.5%Reduced
Standard Life Aberdeen plc420,856$2.80M0.00%+152,139+56.6%Added
Russell Investments Group, Ltd.424,659$2.82M0.00%−182,128−30.0%Reduced
Marshall Wace, LLP444,191$2.95M0.00%+444,191New
Parkman Healthcare Partners LLC515,992$3.43M0.40%+515,992New
Tikvah Management LLC571,619$3.80M1.25%00.0%Unchanged
Trium Capital LLP586,425$3.90M0.97%+26,925+4.8%Added
Baillie Gifford & Co600,812$4.00M0.00%00.0%Unchanged
Williams Jones Wealth Management, LLC.676,014$4.50M0.05%+162,525+31.7%Added
State Street Corp764,855$5.09M0.00%+3,547+0.5%Added
Balyasny Asset Management LLC767,801$5.11M0.01%+723,295+1,625.2%Added
Morgan Stanley771,440$5.13M0.00%+175,391+29.4%Added
Dimensional Fund Advisors LP803,735$5.34M0.00%−37,598−4.5%Reduced
Geode Capital Management, LLC887,080$5.90M0.00%+21,210+2.4%Added
Blue Water Life Science Advisors, LLC957,747$6.37M5.04%+585,572+157.3%Added
Easterly Investment Partners LLC1,083,635$7.21M0.52%−241,985−18.3%Reduced
William Blair Investment Management, LLC1,127,981$7.50M0.02%+21,918+2.0%Added
Invenomic Capital Management LP1,144,904$7.61M0.43%+242,861+26.9%Added
Kent Lake PR LLC2,301,000$15.3M6.75%−623,903−21.3%Reduced
Vanguard Group Inc2,528,950$16.8M0.00%+3,271+0.1%Added
BlackRock, Inc.2,924,699$19.4M0.00%−145,416−4.7%Reduced
Portolan Capital Management, LLC3,633,622$24.2M1.52%+670,225+22.6%Added
Ameriprise Financial Inc4,236,877$28.2M0.01%+521,639+14.0%Added
Pier Capital, LLC0$00.00%−848,353−100.0%Sold out
Ashford Capital Management Inc0$00.00%−436,930−100.0%Sold out
Topline Capital Management, LLC0$00.00%−386,037−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−195,920−100.0%Sold out
Citadel Advisors LLC0$00.00%−189,960−100.0%Sold out
Walleye Capital LLC0$00.00%−179,389−100.0%Sold out
Wexford Capital LP0$00.00%−100,000−100.0%Sold out
Engineers Gate Manager LP0$00.00%−90,729−100.0%Sold out
D. E. Shaw & Co., Inc.0$00.00%−75,591−100.0%Sold out
Marathon Capital Management0$00.00%−74,300−100.0%Sold out
Boussard & Gavaudan Investment Management LLP0$00.00%−71,671−100.0%Sold out
Algert Global LLC0$00.00%−46,988−100.0%Sold out
Massar Capital Management, LP0$00.00%−46,000−100.0%Sold out
Numerai GP LLC0$00.00%−41,082−100.0%Sold out
EntryPoint Capital, LLC0$00.00%−31,041−100.0%Sold out
Emerald Advisers, LLC0$00.00%−25,542−100.0%Sold out
Jain Global LLC0$00.00%−25,397−100.0%Sold out
Paragon Associates & Paragon Associates II Joint Venture0$00.00%−25,000−100.0%Sold out
Verition Fund Management LLC0$00.00%−23,331−100.0%Sold out
Franklin Resources Inc0$00.00%−20,273−100.0%Sold out
Corebridge Financial, Inc.0$00.00%−17,602−100.0%Sold out
Oxford Asset Management LLP0$00.00%−13,127−100.0%Sold out
Point72 Asia (Singapore) Pte. Ltd.0$00.00%−12,726−100.0%Sold out
Aaron Wealth Advisors0$00.00%−12,077−100.0%Sold out
SG Americas Securities, LLC0$00.00%−11,534−100.0%Sold out
Deerfield Management Company, L.P. (Series C)0$00.00%−11,023−100.0%Sold out
Emerald Mutual Fund Advisers Trust0$00.00%−8,277−100.0%Sold out
Public Employees Retirement Association of Colorado0$00.00%−5,365−100.0%Sold out
Picton Mahoney Asset Management0$00.00%−533−100.0%Sold out
Caitong International Asset Management Co., Ltd0$00.00%−326−100.0%Sold out
UMA Financial Services, Inc.0$00.00%−139−100.0%Sold out
Coldstream Capital Management Inc0$00.00%−91−100.0%Sold out
Hughes Financial Services, LLC0$00.00%−67−100.0%Sold out
Signaturefd, LLC0$00.00%−66−100.0%Sold out
Stephens Consulting, LLC0$00.00%−55−100.0%Sold out
Massmutual Trust Co FSB0$00.00%−42−100.0%Sold out
Sofos Investments, Inc.––––Not filed