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Arrowhead Research

261 hedge funds and large institutions have $1.32B invested in Arrowhead Research in 2025 Q1 according to their latest regulatory filings, with 42 funds opening new positions, 87 increasing their positions, 81 reducing their positions, and 47 closing their positions.

New
Increased
Maintained
Reduced
Closed

more funds holding in top 10

Funds holding in top 10:

more repeat investments, than reductions

Existing positions increased: | Existing positions reduced:

less funds holding

Funds holding:

less ownership

Funds ownership:

11% less first-time investments, than exits

New positions opened: 42 | Existing positions closed: 47

25% less call options, than puts

Call options by funds: $4.66M | Put options by funds: $6.24M

30% less capital invested

Capital invested by funds: $1.87B → $1.32B (-$555M)

Holders
261
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
5
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$4.66M
Puts
$6.24M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
101
$679K
102
$670K
103
$670K
104
$650K
105
$627K
106
$618K
107
$603K
108
$583K
109
$577K
110
$576K
111
$557K
112
$539K
113
$525K
114
$518K
115
$517K
116
$514K
117
$508K
118
$498K
119
$480K
120
$471K
121
$471K
122
$455K
123
$445K
124
$444K
125
$432K