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Arrowhead Research

103 hedge funds and large institutions have $148M invested in Arrowhead Research in 2015 Q3 according to their latest regulatory filings, with 20 funds opening new positions, 45 increasing their positions, 23 reducing their positions, and 10 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
103
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$2.17M
Puts
$3.09M
Net Calls
Net Calls Change

Top Buyers

1 +$4.19M
2 +$2.68M
3 +$2.02M
4
Vanguard Group
Vanguard Group
Pennsylvania
+$1.28M
5
Group One Trading
Group One Trading
Illinois
+$872K

Top Sellers

1 -$8.65M
2 -$5.72M
3 -$4.51M
4
RI
RTW Investments
New York
-$2.67M
5
CA
Commerzbank Aktiengesellschaft
Germany
-$1.64M
Name Holding Trade Value Shares
Change
Change in
Stake
26
$1.01M
27
$845K
28
$755K
29
$720K
30
$684K
31
$648K
32
$629K
33
$624K
34
$521K
35
$440K
36
$423K
37
$404K
38
$366K
39
$359K
40
$341K
41
$330K
42
$326K
43
$323K
44
$313K
45
$303K
46
$295K
47
$259K
48
$259K
49
$244K
50
$238K