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Quanterix
QTRX

Overview Fund Activity

137 hedge funds and large institutions have $231M invested in Quanterix in 2025 Q2 according to their latest regulatory filings, with 25 funds opening new positions, 46 increasing their positions, 42 reducing their positions, and 36 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
137
Holders Change
-12
Holders Change %
-8.05%
% of All Funds
1.84%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.03%
New
25
Increased
46
Reduced
42
Closed
36
Calls
$7K
Puts
$15K
Net Calls
-$8K
Net Calls Change
-$61K

Top Buyers

1
Balyasny Asset Management
Balyasny Asset Management
Illinois
$5.11M
2
PCM
Portolan Capital Management
Massachusetts
$24.2M
3
BWLSA
Blue Water Life Science Advisors
California
$6.37M
4
Ameriprise
Ameriprise
Minnesota
$28.2M
5
PHP
Parkman Healthcare Partners
Connecticut
$3.43M

Top Sellers

1
PC
Pier Capital
Connecticut
$0
2
UBS Group
UBS Group
Switzerland
$2.56M
3
KLP
Kent Lake PR
Puerto Rico
$15.3M
4
ACM
Ashford Capital Management
Delaware
$0
5
TCM
Topline Capital Management
California
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
Ameriprise
1
Ameriprise
Minnesota
$28.2M +$3.47M +521,639 +14%
PCM
2
Portolan Capital Management
Massachusetts
$24.2M +$4.46M +670,225 +23%
BlackRock
3
BlackRock
New York
$19.4M -$967K -145,416 -5%
Vanguard Group
4
Vanguard Group
Pennsylvania
$16.8M +$21.8K +3,271 +0.1%
KLP
5
Kent Lake PR
Puerto Rico
$15.3M -$4.15M -623,903 -21%
ICM
6
Invenomic Capital Management
Massachusetts
$7.61M +$1.62M +242,861 +27%
William Blair Investment Management
7
William Blair Investment Management
Illinois
$7.5M +$146K +21,918 +2%
EIP
8
Easterly Investment Partners
Massachusetts
$7.21M -$1.61M -241,985 -18%
BWLSA
9
Blue Water Life Science Advisors
California
$6.37M +$3.89M +585,572 +157%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$5.9M +$141K +21,210 +2%
Dimensional Fund Advisors
11
Dimensional Fund Advisors
Texas
$5.34M -$250K -37,598 -4%
Morgan Stanley
12
Morgan Stanley
New York
$5.13M +$1.17M +175,391 +29%
Balyasny Asset Management
13
Balyasny Asset Management
Illinois
$5.11M +$4.81M +723,295 +1,625%
State Street
14
State Street
Massachusetts
$5.09M +$23.6K +3,547 +0.5%
WJWM
15
Williams Jones Wealth Management
New York
$4.5M +$1.08M +162,525 +32%
Baillie Gifford & Co
16
Baillie Gifford & Co
United Kingdom
$4M – – –
TC
17
Trium Capital
United Kingdom
$3.9M +$179K +26,925 +5%
TM
18
Tikvah Management
North Carolina
$3.8M – – –
PHP
19
Parkman Healthcare Partners
Connecticut
$3.43M +$3.43M +515,992 New
Marshall Wace
20
Marshall Wace
United Kingdom
$2.95M +$2.95M +444,191 New
Russell Investments Group
21
Russell Investments Group
United Kingdom
$2.82M -$1.21M -182,128 -30%
Aberdeen Group
22
Aberdeen Group
United Kingdom
$2.8M +$1.01M +152,139 +57%
UBS Group
23
UBS Group
Switzerland
$2.56M -$4.85M -730,027 -65%
SCM
24
SCS Capital Management
Massachusetts
$2.36M – – –
SSA
25
Schonfeld Strategic Advisors
New York
$2.17M +$2.17M +325,677 New
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