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Merus
MRUS

Overview Fund Activity

200 hedge funds and large institutions have $3.93B invested in Merus in 2025 Q2 according to their latest regulatory filings, with 47 funds opening new positions, 75 increasing their positions, 64 reducing their positions, and 30 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
200
Holders Change
+15
Holders Change %
+8.11%
% of All Funds
2.68%
Holding in Top 10
21
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+23.53%
% of All Funds
0.28%
New
47
Increased
75
Reduced
64
Closed
30
Calls
$41.5M
Puts
$31.7M
Net Calls
+$9.78M
Net Calls Change
-$3.16M

Top Buyers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$61.3M
2
Ameriprise
Ameriprise
Minnesota
+$54.3M
3
PBA
Paradigm Biocapital Advisors
New York
+$48M
4
Adage Capital Partners
Adage Capital Partners
Massachusetts
+$43.8M
5
Westfield Capital Management
Westfield Capital Management
Massachusetts
+$28.5M

Top Sellers

1
SC
Samlyn Capital
New York
-$84.9M
2
Wellington Management Group
Wellington Management Group
Massachusetts
-$52.2M
3
CC
Commodore Capital
New York
-$49.9M
4
BlackRock
BlackRock
New York
-$33.7M
5
Millennium Management
Millennium Management
New York
-$30M
Name Holding Trade Value Shares
Change 		Shares
Change %
CP
76
CenterBook Partners
Connecticut
$6.16M +$1.37M +25,968 +29%
RPAM
77
Rhenman & Partners Asset Management
Sweden
$6.1M +$2.18M +41,500 +56%
Deutsche Bank
78
Deutsche Bank
Germany
$5.97M +$18.9K +359 +0.3%
Victory Capital Management
79
Victory Capital Management
Texas
$5.86M +$5.37M +102,160 +1,101%
Goldman Sachs
80
Goldman Sachs
New York
$5.61M -$956K -18,177 -15%
ECM
81
ExodusPoint Capital Management
New York
$5.18M +$2.78M +52,905 +116%
Swiss National Bank
82
Swiss National Bank
Switzerland
$4.86M -$26.3K -500 -0.5%
MAP
83
Moody Aldrich Partners
Massachusetts
$4.84M -$856K -16,272 -15%
HS
84
HighVista Strategies
Massachusetts
$4.72M +$1.83M +34,723 +63%
TD Asset Management
85
TD Asset Management
Ontario, Canada
$4.69M +$939K +17,852 +25%
GIM
86
Granahan Investment Management
Massachusetts
$4.24M -$794K -15,101 -16%
RAM
87
Readystate Asset Management
Illinois
$4.13M +$4.13M +78,500 New
Axa
88
Axa
France
$3.95M +$530K +10,080 +16%
AI
89
Atom Investors
Texas
$3.88M -$2.12M -40,369 -35%
AAA
90
Affinity Asset Advisors
New York
$3.68M -$13.3M -251,962 -78%
TCA
91
Troluce Capital Advisors
Puerto Rico
$3.68M +$3.68M +70,000 New
ACM
92
Aquatic Capital Management
Illinois
$3.33M +$2.48M +47,228 +295%
SCM
93
Sio Capital Management
New York
$3.3M +$3.3M +62,719 New
Geode Capital Management
94
Geode Capital Management
Massachusetts
$3.2M +$434K +8,266 +16%
Manulife (Manufacturers Life Insurance)
95
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$3.15M +$525K +9,987 +20%
HP
96
HealthInvest Partners
Sweden
$3.15M +$1.29M +24,597 +70%
HCA
97
Harbor Capital Advisors
Illinois
$2.97M -$418K -7,953 -12%
DekaBank Deutsche Girozentrale
98
DekaBank Deutsche Girozentrale
Germany
$2.89M – – –
NL
99
Nuveen LLC
North Carolina
$2.74M +$2.74M +52,034 New
NIM
100
NEOS Investment Management
Connecticut
$2.69M +$298K +5,657 +12%
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4
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