Security key
74766Q101
Quanterix Corp - Common Stock, $0.001 par value per share (QTRX)
CUSIP: 74766Q101
Q1 2026 13F Holders as of 31 Mar 2026
- Type / Class
- Equity / Common Stock, $0.001 par value per share
- Shares outstanding
- 47,133,168
- Total 13F shares
- 36,400,474
- Share change
- +1,461,808
- Total reported value
- $128,126,200
- Price per share
- $3.52
- Number of holders
- 125
- Value change
- +$1,996,862
- Number of buys
- 66
- Number of sells
- 55
Report period
Q1 2026
Institutions
125
Top holders
10
QTRX full security history
Previous quarter: Q4 2025
Quanterix Corp SEC filings
Quanterix Corp company facts
Quanterix Corp 13D/G history
Broader feeds
Reporting periods
Holder history for CUSIP 74766Q101
Recent filing periods:
Top shareholders of QTRX - Quanterix Corp - Common Stock, $0.001 par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Ownership % is shown only when it is directly reported or safely comparable across share classes.
Methodology: rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
| Holder | Source | Role / Reporting | Ownership % | Shares | Holdings Value | 12M Net Δ | As of | Details |
|---|---|---|---|---|---|---|---|---|
| BlackRock, Inc. |
13F
13D/G
|
Company |
7.3%
from 13D/G
|
3,375,910
|
$21,470,788 | — | 31 Dec 2025 | |
| Portolan Capital Management, LLC |
13F
13D/G
|
Company |
6.2%
from 13D/G
|
4,525,553
|
$28,782,517 | — | 31 Dec 2025 | |
| Telegraph Hill Partners III, L.P. |
13D/G
|
— |
5.4%
|
2,504,648
|
$12,523,240 | $0 | 30 Sep 2025 | |
| Kent Lake PR LLC |
13D/G
|
— |
4.5%
|
2,089,500
|
$13,894,548 | -$3,694,480 | 11 Jul 2025 | |
| ALLIANCEBERNSTEIN L.P. |
13F
13D/G
|
Company |
0.1%
from 13D/G
|
44,480
|
$282,893 | — | 31 Dec 2025 | |
| Paul M. Meister |
3/4/5
|
Director |
0.66%
|
313,253
|
$1,992,414 | — | 02 Jan 2026 | |
| Alan Bruce Sachs |
3/4/5
|
Director |
0.15%
|
70,099
|
$445,885 | — | 02 Jan 2026 | |
| Malcolm Garret Hampton |
3/4/5
|
Director |
0.15%
|
70,099
|
$445,885 | — | 02 Jan 2026 | |
| Ivana Magovcevic-Liebisch |
3/4/5
|
Director |
0.09%
|
43,607
|
$277,357 | — | 02 Jan 2026 | |
| Jeffrey Thomas Elliott |
3/4/5
|
Director |
0.09%
|
42,792
|
$272,191 | — | 02 Jan 2026 | |
| AMERIPRISE FINANCIAL INC |
13F
|
Company |
11%
|
4,996,073
|
$31,775,037 | — | 31 Dec 2025 | |
| VANGUARD GROUP INC |
13F
|
Company |
5.7%
|
2,677,833
|
$17,031,018 | — | 31 Dec 2025 | |
| Blue Water Life Science Advisors, LP |
13F
|
Company |
4.4%
|
2,092,147
|
$13,306,055 | — | 31 Dec 2025 | |
| WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC |
13F
|
Company |
4.3%
|
2,046,449
|
$13,015,416 | — | 31 Dec 2025 | |
| Invenomic Capital Management LP |
13F
|
Company |
3.2%
|
1,505,208
|
$9,573,123 | — | 31 Dec 2025 | |
| GEODE CAPITAL MANAGEMENT, LLC |
13F
|
Company |
2.3%
|
1,073,967
|
$6,832,078 | — | 31 Dec 2025 | |
| STATE STREET CORP |
13F
|
Company |
1.9%
|
893,401
|
$5,682,030 | — | 31 Dec 2025 | |
| MORGAN STANLEY |
13F
|
Company |
1.7%
|
822,998
|
$5,234,270 | — | 31 Dec 2025 | |
| Trium Capital LLP |
13F
|
Company |
1.7%
|
817,451
|
$5,198,988 | — | 31 Dec 2025 | |
| Williams Jones Wealth Management, LLC. |
13F
|
Company |
1.4%
|
638,939
|
$4,063,652 | — | 31 Dec 2025 | |
| Empire Financial Management Company, LLC |
13F
|
Company |
1.3%
|
617,830
|
$3,929,398 | — | 31 Dec 2025 | |
| EASTERLY INVESTMENT PARTNERS LLC |
13F
|
Company |
1.3%
|
616,681
|
$3,922,091 | — | 31 Dec 2025 | |
| Tikvah Management LLC |
13F
|
Company |
1.2%
|
571,619
|
$3,635,497 | — | 31 Dec 2025 | |
| First Eagle Investment Management, LLC |
13F
|
Company |
1.1%
|
531,427
|
$3,379,876 | — | 31 Dec 2025 | |
| MILLENNIUM MANAGEMENT LLC |
13F
|
Company |
0.85%
|
402,631
|
$2,560,733 | — | 31 Dec 2025 | |
| DIMENSIONAL FUND ADVISORS LP |
13F
|
Company |
0.83%
|
389,466
|
$2,476,911 | — | 31 Dec 2025 | |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC |
13F
|
Company |
0.77%
|
362,740
|
$2,307,023 | — | 31 Dec 2025 | |
| NORTHERN TRUST CORP |
13F
|
Company |
0.73%
|
345,564
|
$2,197,787 | — | 31 Dec 2025 | |
| Parkman Healthcare Partners LLC |
13F
|
Company |
0.7%
|
328,956
|
$2,092,160 | — | 31 Dec 2025 | |
| UBS Group AG |
13F
|
Company |
0.66%
|
311,499
|
$1,981,134 | — | 31 Dec 2025 | |
| TWO SIGMA INVESTMENTS, LP |
13F
|
Company |
0.55%
|
258,858
|
$1,646,337 | — | 31 Dec 2025 | |
| Russell Investments Group, Ltd. |
13F
|
Company |
0.54%
|
256,140
|
$1,629,050 | — | 31 Dec 2025 | |
| ENVESTNET ASSET MANAGEMENT INC |
13F
|
Company |
0.54%
|
252,211
|
$1,604,062 | — | 31 Dec 2025 | |
| GOLDMAN SACHS GROUP INC |
13F
|
Company |
0.53%
|
248,242
|
$1,578,819 | — | 31 Dec 2025 | |
| IRONWOOD INVESTMENT MANAGEMENT LLC |
13F
|
Company |
0.37%
|
172,330
|
$1,096,019 | — | 31 Dec 2025 | |
| TUDOR INVESTMENT CORP ET AL |
13F
|
Company |
0.36%
|
169,695
|
$1,079,260 | — | 31 Dec 2025 | |
| BNP PARIBAS FINANCIAL MARKETS |
13F
|
Company |
0.36%
|
168,430
|
$1,071,215 | — | 31 Dec 2025 | |
| WELLS FARGO & COMPANY/MN |
13F
|
Company |
0.35%
|
162,686
|
$1,034,683 | — | 31 Dec 2025 | |
| FMR LLC |
13F
|
Company |
0.34%
|
159,907
|
$1,017,010 | — | 31 Dec 2025 | |
| MARSHALL WACE, LLP |
13F
|
Company |
0.33%
|
155,169
|
$986,876 | — | 31 Dec 2025 | |
| STATE OF WISCONSIN INVESTMENT BOARD |
13F
|
Company |
0.31%
|
147,824
|
$940,161 | — | 31 Dec 2025 | |
| Jump Financial, LLC |
13F
|
Company |
0.31%
|
144,095
|
$916,444 | — | 31 Dec 2025 | |
| Bank of New York Mellon Corp |
13F
|
Company |
0.26%
|
123,521
|
$785,593 | — | 31 Dec 2025 | |
| GSA CAPITAL PARTNERS LLP |
13F
|
Company |
0.26%
|
121,525
|
$773,000 | — | 31 Dec 2025 | |
| BARCLAYS PLC |
13F
|
Company |
0.26%
|
120,203
|
$764,491 | — | 31 Dec 2025 | |
| SCS Capital Management LLC |
13F
|
Company |
0.25%
|
120,035
|
$763,423 | — | 31 Dec 2025 | |
| JPMORGAN CHASE & CO |
13F
|
Company |
0.24%
|
114,021
|
$725,173 | — | 31 Dec 2025 | |
| Invesco Ltd. |
13F
|
Company |
0.24%
|
113,200
|
$719,952 | — | 31 Dec 2025 | |
| CITIGROUP INC |
13F
|
Company |
0.24%
|
112,380
|
$714,737 | — | 31 Dec 2025 | |
| Aberdeen Group plc |
13F
|
Company |
0.22%
|
104,039
|
$661,688 | — | 31 Dec 2025 |
Institutional Holders of Quanterix Corp - Common Stock, $0.001 par value per share (QTRX) as of Q1 2026
As of 31 Mar 2026,
Quanterix Corp - Common Stock, $0.001 par value per share (QTRX) was held by
125 institutional
shareholders
that filed Form 13F with the SEC.
Together, they reported ownership of
36,400,474 shares.
The largest 10 holders included
AMERIPRISE FINANCIAL INC, BlackRock, Inc., Portolan Capital Management, LLC, Blue Water Life Science Advisors, LP, WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC, Invenomic Capital Management LP, VANGUARD CAPITAL MANAGEMENT LLC, LEVIN CAPITAL STRATEGIES, L.P., First Eagle Investment Management, LLC, and GEODE CAPITAL MANAGEMENT, LLC.
This page lists
125
institutional shareholders reporting positions in this security
for the Q1 2026 filing period.
| Investor | Option | Weight % | Change % | Value $ | * Price | Shares | Share Change | Activity | Report Period |
|---|
Compare Q1 2026 vs Q4 2025 Across Filers
Q4 2025 holders
132
Q1 2026 holders
125
Holder diff
-7
| Investor | Q4 2025 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q4 2025 Value $ | Q1 2026 Value $ | Value Diff $ | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.
An asterisk sign (*) next to the price indicates that the price is likely invalid.