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Arrowhead Research

100 hedge funds and large institutions have $259M invested in Arrowhead Research in 2014 Q4 according to their latest regulatory filings, with 28 funds opening new positions, 28 increasing their positions, 30 reducing their positions, and 36 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
100
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
2
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$3.49M
Puts
$6.13M
Net Calls
Net Calls Change

Top Buyers

1 +$22.1M
2 +$17.8M
3 +$17.4M
4
QF
QVT Financial
New York
+$13.9M
5
GPP
Great Point Partners
Connecticut
+$8.32M

Top Sellers

1 -$76.5M
2 -$22.8M
3 -$20.2M
4
PA
Perceptive Advisors
New York
-$18.4M
5
VAM
Visium Asset Management
New York
-$15.4M
Name Holding Trade Value Shares
Change
Change in
Stake
51
$307K
52
$300K
53
$297K
54
$279K
55
$267K
56
$244K
57
$240K
58
$222K
59
$208K
60
$179K
61
$168K
62
$166K
63
$162K
64
$156K
65
$148K
66
$146K
67
$128K
68
$127K
69
$117K
70
$96K
71
$93K
72
$87K
73
$78K
74
$60K
75
$58K