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Arrowhead Research

396 hedge funds and large institutions have $7.7B invested in Arrowhead Research in 2025 Q4 according to their latest regulatory filings, with 124 funds opening new positions, 125 increasing their positions, 109 reducing their positions, and 29 closing their positions.

New
Increased
Maintained
Reduced
Closed

more first-time investments, than exits

New positions opened: | Existing positions closed:

more call options, than puts

Call options by funds: $ | Put options by funds: $

more capital invested

Capital invested by funds: $ → $

more funds holding

Funds holding:

15% more repeat investments, than reductions

Existing positions increased: 125 | Existing positions reduced: 109

14% more funds holding in top 10

Funds holding in top 10: 78 (+1)

5.1% more ownership

Funds ownership: 80.3%85.4% (+5.1%)

Holders
396
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
8
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$148M
Puts
$38.8M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
SOADOR
101
State of Alaska Department of Revenue
Alaska
$4.67M
PP
102
PDT Partners
New York
$4.65M
AAA
103
Affinity Asset Advisors
New York
$4.65M
MCM
104
M28 Capital Management
Connecticut
$4.47M
LSERS
105
Louisiana State Employees Retirement System
Louisiana
$4.2M
Luther King Capital Management (LKCM)
106
Luther King Capital Management (LKCM)
Texas
$4.01M
BA
107
Bridgewater Associates
Connecticut
$3.98M
AG
108
Algert Global
California
$3.9M
ACM
109
ADAR1 Capital Management
Texas
$3.86M
State of Tennessee, Department of Treasury
110
State of Tennessee, Department of Treasury
Tennessee
$3.86M
KI
111
Keystone Investors
Singapore
$3.84M
GC
112
Guggenheim Capital
Illinois
$3.76M
GAM
113
Gotham Asset Management
New York
$3.74M
TD Asset Management
114
TD Asset Management
Ontario, Canada
$3.7M
Commonwealth Equity Services
115
Commonwealth Equity Services
Massachusetts
$3.7M
Bessemer Group
116
Bessemer Group
New Jersey
$3.44M
Royal Bank of Canada
117
Royal Bank of Canada
Ontario, Canada
$3.4M
SG Americas Securities
118
SG Americas Securities
New York
$3.34M
EAM
119
Exome Asset Management
New York
$3.3M
Wellington Management Group
120
Wellington Management Group
Massachusetts
$3.15M
OIC
121
Orion Investment Company
Missouri
$3.08M
Millennium Management
122
Millennium Management
New York
$2.99M
CM
123
Caption Management
Oklahoma
$2.98M
IIM
124
INTECH Investment Management
Florida
$2.85M
Citigroup
125
Citigroup
New York
$2.84M