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

Historical Holders from Q4 2017 to Q3 2025

Symbol
QTRX on Nasdaq
Type / Class
Equity / Common Stock, par value $0.001
Shares outstanding
46.4M
All holders as of 30 Sep 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. 30 Sep 2025
Portolan Capital Management, LLC 9.36% +21.5% $21.4M $3.95M 3.63M +22.6% Portolan Capital Management, LLC 30 Jun 2025
BlackRock, Inc. 7.3% $18.9M 2.84M BlackRock, Inc. 30 Jun 2025
VANGUARD GROUP INC 6.51% $14.1M 2.53M The Vanguard Group 31 Mar 2025
Telegraph Hill Partners III, L.P. 5.4% $12.5M 2.5M Telegraph Hill Partners III, L.P. 30 Sep 2025
Kent Lake PR LLC 4.5% -34.3% $13.9M -$3.69M 2.09M -21% Kent Lake PR LLC 11 Jul 2025
ALLIANCEBERNSTEIN L.P. 0.1% -103% $207K -$13.5M 37K -98.5% AllianceBernstein L.P. 31 Mar 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 $6.65 135
2025 Q1 35.1M $228M -$13.8M $6.51 147
2024 Q4 35M $372M +$16.1M $10.63 149
2024 Q3 33.2M $431M +$1.58M $12.96 148
2024 Q2 32.4M $429M -$24.3M $13.21 154
2024 Q1 32.3M $761M +$14.1M $23.56 162
2023 Q4 31.6M $864M -$24.4M $27.34 171
2023 Q3 32.4M $878M -$2.87M $27.14 157
2023 Q2 32.5M $733M +$7.55M $22.55 136
2023 Q1 32.9M $370M +$10.9M $11.27 134
2022 Q4 31.6M $438M +$20.7M $13.85 128
2022 Q3 29.9M $329M -$53.9M $11.02 137
2022 Q2 32.1M $519M -$13.4M $16.19 126
2022 Q1 32.1M $935M +$5.96M $29.19 137
2021 Q4 31.6M $1.34B +$25.7M $42.40 148
2021 Q3 30.8M $1.53B +$40.7M $49.79 148
2021 Q2 30M $1.76B +$118M $58.66 156
2021 Q1 28.3M $1.66B +$302M $58.47 158
2020 Q4 23.2M $1.08B +$57.5M $46.50 139
2020 Q3 22.7M $765M +$79M $33.74 110
2020 Q2 20.3M $557M +$25.1M $27.39 88
2020 Q1 19.6M $360M -$8.11M $18.37 80
2019 Q4 19.8M $467M +$19.2M $23.63 82
2019 Q3 18.9M $415M +$116M $21.96 86
2019 Q2 13.5M $455M +$139M $33.79 86
2019 Q1 9.41M $243M +$4.04M $25.83 67
2018 Q4 11.6M $213M +$6.13M $18.31 59
2018 Q3 8.99M $193M +$4.34M $21.42 50
2018 Q2 8.83M $127M +$11.2M $14.36 45
2018 Q1 10M $171M +$6.28M $17.04 40
2017 Q4 9.52M $204M +$204M $21.47 31