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Arrowhead Research
ARWR

Overview Fund Activity

67 hedge funds and large institutions have $262M invested in Arrowhead Research in 2013 Q4 according to their latest regulatory filings, with 36 funds opening new positions, 14 increasing their positions, 9 reducing their positions, and 3 closing their positions.

Holders
67
Holders Change
+33
Holders Change %
+97.06%
% of All Funds
1.95%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.06%
New
36
Increased
14
Reduced
9
Closed
3
Calls
$1.88M
Puts
$1.38M
Net Calls
+$497K
Net Calls Change
+$114K

Top Buyers

1
O
1
OrbiMed
New York
$23.1M
2
QF
2
QVT Financial
New York
$21.1M
3
SCA
3
SAC Capital Advisors
Connecticut
$16.3M
4
Franklin Resources
4
Franklin Resources
California
$14.2M
5
RCM
5
RA Capital Management
Massachusetts
$22.2M

Top Sellers

1
CCM
1
Camber Capital Management
Massachusetts
$16.3M
2
PC
2
PointState Capital
New York
$0
3
SC
3
Sophrosyne Capital
New York
$1.53M
4
Goldman Sachs
4
Goldman Sachs
New York
$153K
5
BBA
5
Baker Bros. Advisors
New York
$33.5M
Name Market Value Shares Shares
Change 		Shares
Change %
AWMDMG
1
Austin W. Marxe & David M. Greenhouse
New York
$33.8M 3,114,754 – –
BBA
2
Baker Bros. Advisors
New York
$33.5M 3,090,000 -50,000 -2%
O
3
OrbiMed
New York
$23.1M 2,128,900 +2,128,900 New
RCM
4
RA Capital Management
Massachusetts
$22.2M 2,049,220 +1,169,659 +133%
QF
5
QVT Financial
New York
$21.1M 2,047,782 +2,047,782 New
CCM
6
Camber Capital Management
Massachusetts
$16.3M 1,500,000 -999,999 -40%
SCA
7
SAC Capital Advisors
Connecticut
$16.3M 1,500,000 +1,500,000 New
Franklin Resources
8
Franklin Resources
California
$14.2M 1,311,543 +1,311,543 New
CAM
9
Cormorant Asset Management
Massachusetts
$10.8M 995,500 +995,500 New
Millennium Management
10
Millennium Management
New York
$9.36M 862,859 +700,970 +433%
JPMorgan Chase & Co
11
JPMorgan Chase & Co
New York
$7.14M 657,732 +657,732 New
Vanguard Group
12
Vanguard Group
Pennsylvania
$6.44M 593,434 +140,632 +31%
VAM
13
Visium Asset Management
New York
$5.82M 536,032 +536,032 New
SCM
14
Sigma Capital Management
Connecticut
$5.43M 500,000 +500,000 New
BIT
15
BlackRock Institutional Trust
California
$4.96M 457,335 +145,128 +46%
PCA
16
Private Capital Advisors
Connecticut
$4.09M 377,017 +377,017 New
EI
17
EAM Investors
California
$3.12M 287,428 +287,428 New
RCI
18
Ridgeback Capital Investments
Florida
$3.03M 279,361 +279,361 New
GTC
19
Ghost Tree Capital
New York
$2.98M 275,000 +275,000 New
DCM
20
Driehaus Capital Management
Illinois
$1.86M 171,657 +171,657 New
DM
21
Deerfield Management
New York
$1.54M 142,017 +142,017 New
SC
22
Sophrosyne Capital
New York
$1.53M 140,858 -153,725 -52%
Morgan Stanley
23
Morgan Stanley
New York
$1.44M 132,793 +119,570 +904%
WMSA
24
Weiss Multi-Strategy Advisers
New York
$1.19M 110,000 -20,000 -15%
BFA
25
BlackRock Fund Advisors
California
$966K 89,073 +3,730 +4%
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