Quanterix
QTRX
149 hedge funds and large institutions have $228M invested in Quanterix in 2025 Q1 according to their latest regulatory filings, with 36 funds opening new positions, 56 increasing their positions, 36 reducing their positions, and 37 closing their positions.
56% more repeat investments, than reductions
Existing positions increased: 56 | Existing positions reduced: 36
46% more call options, than puts
Call options by funds: $168K | Put options by funds: $115K
0.48% less ownership
Funds ownership: 90.88% → 90.4% (-0.48%)
3% less first-time investments, than exits
New positions opened: 36 | Existing positions closed: 37
2% less funds holding
Funds holding: 152 → 149 (-3)
33% less funds holding in top 10
Funds holding in top 10: 3 → 2 (-1)
39% less capital invested
Capital invested by funds: $372M → $228M (-$144M)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
KLP
Kent Lake PR
Anasco,
Puerto Rico
|
+$16.9M |
| 2 |
ICM
Invenomic Capital Management
Boston,
Massachusetts
|
+$7.53M |
| 3 |
TC
Trium Capital
London,
United Kingdom
|
+$4.67M |
| 4 |
Ameriprise
Minneapolis,
Minnesota
|
+$4.25M |
| 5 |
TCM
Topline Capital Management
Santa Monica,
California
|
+$3.22M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AllianceBernstein
Nashville,
Tennessee
|
-$20.1M |
| 2 |
Millennium Management
New York
|
-$17.8M |
| 3 |
EAM
Eventide Asset Management
Boston,
Massachusetts
|
-$6.54M |
| 4 |
GIM
Granahan Investment Management
Waltham,
Massachusetts
|
-$5.7M |
| 5 |
UBS AM
Chicago,
Illinois
|
-$5.54M |
QTRX Hedge Fund Activity: Q1 2025 in Review
149 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Quanterix (QTRX) for Q1 2025, worth a combined $228M — down 39% from $372M a quarter earlier.
Sellers outnumbered buyers: 37 funds closed out of QTRX and 36 opened new positions — a net loss of 1 holder — while 36 trimmed existing stakes and 56 added.
The largest buyer was Kent Lake PR, adding an estimated $16.9M. The largest seller was AllianceBernstein, cutting an estimated $20.1M.
- 149 institutional investors held Quanterix (QTRX) as of Q1 2025, down from 152 in Q4 2024.
- Funds reported $228M of Quanterix stock for Q1 2025, down 39% quarter-over-quarter.
- 36 funds opened new Quanterix positions in Q1 2025 and 37 closed out, a net change of -1 holder.
- The largest Quanterix buyer in Q1 2025 was Kent Lake PR, an estimated $16.9M added.
- The largest Quanterix seller in Q1 2025 was AllianceBernstein, an estimated $20.1M sold.
Based on aggregated 13F filings for Q1 2025.