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Merus
MRUS

Overview Fund Activity

198 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, 74 increasing their positions, 63 reducing their positions, and 30 closing their positions.

Holders
198
Holders Change
+13
Holders Change %
+7.03%
% of All Funds
2.66%
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
74
Reduced
63
Closed
30
Calls
$36.1M
Puts
$21.6M
Net Calls
+$14.5M
Net Calls Change
+$1.55M

Top Buyers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$119M
2
Ameriprise
2
Ameriprise
Minnesota
$59.6M
3
PBA
3
Paradigm Biocapital Advisors
New York
$225M
4
Adage Capital Partners
4
Adage Capital Partners
Massachusetts
$43.8M
5
Westfield Capital Management
5
Westfield Capital Management
Massachusetts
$107M

Top Sellers

1
SC
1
Samlyn Capital
New York
$40.2M
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$196M
3
CC
3
Commodore Capital
New York
$185M
4
BlackRock
4
BlackRock
New York
$55.3M
5
Millennium Management
5
Millennium Management
New York
$831K
Name Market Value Shares Shares
Change 		Shares
Change %
CP
76
CenterBook Partners
Connecticut
$6.16M 117,056 +25,968 +29%
RPAM
77
Rhenman & Partners Asset Management
Sweden
$6.1M 116,000 +41,500 +56%
Deutsche Bank
78
Deutsche Bank
Germany
$5.97M 113,508 +359 +0.3%
Victory Capital Management
79
Victory Capital Management
Texas
$5.86M 111,440 +102,160 +1,101%
Goldman Sachs
80
Goldman Sachs
New York
$5.61M 106,618 -18,177 -15%
ECM
81
ExodusPoint Capital Management
New York
$5.18M 98,529 +52,905 +116%
Swiss National Bank
82
Swiss National Bank
Switzerland
$4.86M 92,354 -500 -0.5%
MAP
83
Moody Aldrich Partners
Massachusetts
$4.84M 92,009 -16,272 -15%
HS
84
HighVista Strategies
Massachusetts
$4.72M 89,762 +34,723 +63%
TD Asset Management
85
TD Asset Management
Ontario, Canada
$4.69M 89,110 +17,852 +25%
GIM
86
Granahan Investment Management
Massachusetts
$4.24M 80,619 -15,101 -16%
RAM
87
Readystate Asset Management
Illinois
$4.13M 78,500 +78,500 New
Axa
88
Axa
France
$3.95M 75,024 +10,080 +16%
AI
89
Atom Investors
Texas
$3.88M 73,789 -40,369 -35%
AAA
90
Affinity Asset Advisors
New York
$3.68M 70,000 -251,962 -78%
TCA
91
Troluce Capital Advisors
Puerto Rico
$3.68M 70,000 +70,000 New
ACM
92
Aquatic Capital Management
Illinois
$3.33M 63,260 +47,228 +295%
SCM
93
Sio Capital Management
New York
$3.3M 62,719 +62,719 New
Geode Capital Management
94
Geode Capital Management
Massachusetts
$3.2M 60,952 +8,266 +16%
Manulife (Manufacturers Life Insurance)
95
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$3.15M 59,893 +9,987 +20%
HP
96
HealthInvest Partners
Sweden
$3.15M 59,889 +24,597 +70%
HCA
97
Harbor Capital Advisors
Illinois
$2.97M 56,421 -7,953 -12%
DekaBank Deutsche Girozentrale
98
DekaBank Deutsche Girozentrale
Germany
$2.89M 56,000 – –
NL
99
Nuveen LLC
North Carolina
$2.74M 52,034 +52,034 New
NIM
100
NEOS Investment Management
Connecticut
$2.69M 51,215 +5,657 +12%
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4
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