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Arrowhead Research

304 hedge funds and large institutions have $3.83B invested in Arrowhead Research in 2025 Q3 according to their latest regulatory filings, with 66 funds opening new positions, 101 increasing their positions, 83 reducing their positions, and 41 closing their positions.

New
Increased
Maintained
Reduced
Closed

more call options, than puts

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

more funds holding in top 10

Funds holding in top 10:

more capital invested

Capital invested by funds: $ → $

more first-time investments, than exits

New positions opened: | Existing positions closed:

22% more repeat investments, than reductions

Existing positions increased: 101 | Existing positions reduced: 83

8% more funds holding

Funds holding: 282304 (+22)

3.65% more ownership

Funds ownership: 76.65%80.3% (+3.7%)

Holders
304
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
7
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$36.5M
Puts
$9.75M
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Change in
Stake
151
$684K
152
$673K
153
$644K
154
$638K
155
$623K
156
$610K
157
$595K
158
$584K
159
$551K
160
$545K
161
$534K
162
$521K
163
$517K
164
$511K
165
$511K
166
$508K
167
$508K
168
$499K
169
$497K
170
$490K
171
$479K
172
$475K
173
$470K
174
$466K
175
$465K