Quanterix Corp - Common Stock, par value $0.001 (QTRX)

Historical Holders from Q4 2017 to Q3 2025

Symbol
QTRX on Nasdaq
CUSIP
74766Q101
Type / Class
Equity / Common Stock, par value $0.001
Shares outstanding
46.4M
All holders as of September 30, 2025
Q3 2025
Total 13F shares, excl. options
35.7M
Holdings value
$194M
% of all portfolios
0.001%
Grand Portfolio weight change
+0%
Number of holders
126
Number of buys
64
Number of sells
-63
Average Value change %
0%
Average buys %
+0%
Average sells %
-0.001%
Reported Shares, Excluding Options vs Price
Reported Value, Excluding Options
Total Investors

Significant Owners of Quanterix Corp - Common Stock, par value $0.001 (QTRX)

Filer Ownership Change % Holdings Value Net Change Nb Shares Change % Reporting Name Report Period
AMERIPRISE FINANCIAL INC 9.1% -14.5% $23M $454K 4.24M +2.01% Ameriprise Financial, Inc. Sep 30, 2025
Portolan Capital Management, LLC 9.36% +21.5% $16.5M $3.04M 3.63M +22.6% Portolan Capital Management, LLC Jun 30, 2025
BlackRock, Inc. 7.3% $13.2M 2.84M BlackRock, Inc. Jun 30, 2025
VANGUARD GROUP INC 6.51% $12.3M 2.53M The Vanguard Group Mar 31, 2025
Telegraph Hill Partners III, L.P. 5.4% $12.5M 2.5M Telegraph Hill Partners III, L.P. Sep 30, 2025
Kent Lake PR LLC 4.5% -34.3% $9.7M -$2.58M 2.09M -21% Kent Lake PR LLC Jul 11, 2025
ALLIANCEBERNSTEIN L.P. 0.1% -103% $180K -$11.7M 37K -98.5% AllianceBernstein L.P. Mar 31, 2025

Institutional Holders of Quanterix Corp - Common Stock, par value $0.001 (QTRX)

Period Reported Shares, Excl. Options Value, Excl. Options Change Price Investors
2025 Q3 35.7M $194M +$2.75M $5.43 126
2025 Q2 34.7M $231M -$1.23M $6.65 136
2025 Q1 35.1M $228M -$13.8M $6.51 147
2024 Q4 35M $372M +$15.9M $10.63 149
2024 Q3 33.2M $431M +$1.54M $12.96 149
2024 Q2 32.4M $428M -$24.3M $13.21 153
2024 Q1 32.3M $761M +$17.3M $23.56 162
2023 Q4 14.3K $391K -$516K $27.34 1
2023 Q3 32.4M $878M -$2.93M $27.14 156
2023 Q2 32.5M $733M +$8.55M $22.55 135
2023 Q1 32.8M $370M +$10.8M $11.27 132
2022 Q4 30.7M $426M +$20.5M $13.85 123
2022 Q3 29.8M $329M -$16.7M $11.02 135
2022 Q2 32M $518M -$12.7M $16.19 122
2022 Q1 31.8M $928M +$30.9M $29.19 133
2021 Q4 31.6M $1.34B +$25.7M $42.40 147
2021 Q3 30.8M $1.53B +$41.7M $49.79 145
2021 Q2 29.9M $1.76B +$127M $58.66 155
2021 Q1 28.1M $1.64B +$287M $58.47 156
2020 Q4 22.9M $1.06B +$55.8M $46.50 136
2020 Q3 22.7M $765M +$79M $33.74 109
2020 Q2 20.3M $557M +$24.7M $27.39 87
2020 Q1 19.6M $360M -$8.12M $18.37 78
2019 Q4 19.8M $467M +$19.2M $23.63 81
2019 Q3 18.9M $415M +$116M $21.96 86
2019 Q2 15.3M $516M +$133M $33.79 86
2019 Q1 11.4M $295M +$3.22M $25.83 68
2018 Q4 11.6M $213M +$6.04M $18.31 58
2018 Q3 11M $236M +$4.25M $21.42 50
2018 Q2 10.9M $156M +$11.2M $14.36 44
2018 Q1 10M $171M +$10.1M $17.04 40
2017 Q4 9.52M $200M +$156M $21.47 31