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Arrowhead Research

432 hedge funds and large institutions have $7.58B invested in Arrowhead Research in 2026 Q1 according to their latest regulatory filings, with 105 funds opening new positions, 167 increasing their positions, 112 reducing their positions, and 62 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
432
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
11
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$106M
Puts
$55.8M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
CAM
101
Cormorant Asset Management
Massachusetts
$6.27M
Citadel Advisors
102
Citadel Advisors
Florida
$6.16M
BA
103
Bridgewater Associates
Connecticut
$5.99M
EP
104
Edgestream Partners
New Jersey
$5.77M
GC
105
Guggenheim Capital
Illinois
$5.73M
Victory Capital Management
106
Victory Capital Management
Texas
$5.6M
Creative Planning
107
Creative Planning
Kansas
$5.53M
ACM
108
ACT Capital Management
Pennsylvania
$5.17M
Canada Life
109
Canada Life
Manitoba, Canada
$5.07M
ACM
110
Aquatic Capital Management
Illinois
$5.03M
Rafferty Asset Management
111
Rafferty Asset Management
New York
$4.99M
Bessemer Group
112
Bessemer Group
New Jersey
$4.96M
State of Wisconsin Investment Board
113
State of Wisconsin Investment Board
Wisconsin
$4.88M
PIA
114
Pinion Investment Advisors
Kansas
$4.7M
ACM
115
ADAR1 Capital Management
Texas
$4.41M
Prudential Financial
116
Prudential Financial
New Jersey
$4.4M
PP
117
PDT Partners
New York
$4.39M
VCM
118
Voleon Capital Management
California
$4.34M
EAM
119
Erste Asset Management
Austria
$4.21M
Envestnet Asset Management
120
Envestnet Asset Management
Illinois
$4.19M
PIM
121
Platinum Investment Management
Australia
$4.06M
PHS
122
PFM Health Sciences
California
$4.03M
Hudson Bay Capital Management
123
Hudson Bay Capital Management
Connecticut
$4.02M
VGA
124
Vanguard Global Advisers
Pennsylvania
$3.96M
OIC
125
Orion Investment Company
Missouri
$3.92M