QUANTERIX CORP (QTRX) Institutional Ownership Changes & 13F Activity

QUANTERIX CORP (QTRX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings. This page analyzes institutional buying and selling activity, new holdings, and sold-out positions among tracked filers. Notable filers include First Eagle U.S. Value and Renaissance Technologies LLC.

Portfolio quarterNameTypeQuantityRemainingReported stock balance
Q1 2026First Eagle U.S. ValueBuy768,6601,300,087$4,576,306
Q1 2026Renaissance Technologies LLCBuy124,407136,207$479,449
Q4 2025First Eagle U.S. ValueBuy531,427531,427$3,379,876
Q4 2025Renaissance Technologies LLCSell-91,40011,800$75,048
Q2 2025Renaissance Technologies LLCSell-99,721103,200$686,280
Q1 2025Renaissance Technologies LLCBuy143,821202,921$1,321,016
Q4 2024Renaissance Technologies LLCSell-73,00559,100$628,233
Q3 2024Renaissance Technologies LLCSell-252,495132,105$1,712,081
Q2 2024Renaissance Technologies LLCSell-40,786384,600$5,080,566
Q1 2024Renaissance Technologies LLCSell-49,314425,386$10,022
Q4 2023Renaissance Technologies LLCBuy154,900474,700$12,978
Q3 2023Renaissance Technologies LLCBuy98,400319,800$8,679
Q2 2023Renaissance Technologies LLCSell-6,000221,400$4,993
Q1 2023Renaissance Technologies LLCBuy123,000227,400$2,563
Q4 2022Renaissance Technologies LLCBuy4,000104,400$1,446
Q3 2022Renaissance Technologies LLCBuy48,600100,400$1,106
Q2 2022Renaissance Technologies LLCSell-147,70051,800$839
Q1 2022Renaissance Technologies LLCBuy31,700199,500$5,823
Q4 2021Renaissance Technologies LLCSell-7,200167,800$7,115
Q3 2021Renaissance Technologies LLCBuy89,400175,000$8,713
Q2 2021Renaissance Technologies LLCSell-36,70085,600$5,021
Q1 2021Renaissance Technologies LLCBuy112,700122,300$7,151
Q4 2020Renaissance Technologies LLCSell-3,2009,600$446
Q1 2020Renaissance Technologies LLCSell-3,80012,800$235
Q4 2019Renaissance Technologies LLCBuy9,30016,600$392
Q2 2019Renaissance Technologies LLCBuy7,3007,300$247

Frequently asked questions about QTRX activity

  • Which institutional owners are buying QTRX?

    Institutional owners buying QTRX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in QTRX activity?

    "Buy" means an investor increased their reported position in QTRX compared to the prior reporting period. This reflects growing exposure to QUANTERIX CORP (QTRX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in QTRX increasing?

    Institutional interest in QTRX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.

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