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Arrowhead Research

Name Holding Trade Value Shares
Change
Change in
Stake
O
1
OppenheimerFunds
New York
$56.3M +$9.29M +1,507,644 +24%
First Manhattan
2
First Manhattan
New York
$32.7M +$8.31M +1,348,900 +42%
Vanguard Group
3
Vanguard Group
Pennsylvania
$24.8M +$3.46M +561,640 +20%
BlackRock
4
BlackRock
New York
$24.5M +$4.03M +655,112 +24%
RI
5
RTW Investments
New York
$21M +$18M +2,916,561 New
State Street
6
State Street
Massachusetts
$18.4M +$15M +2,441,760 +2,187%
VC
7
Vivo Capital
California
$13.7M +$11.7M +1,900,000 New
ACP
8
Acuta Capital Partners
California
$12.7M +$10.9M +1,762,206 New
Adage Capital Partners
9
Adage Capital Partners
Massachusetts
$10.8M +$9.26M +1,503,500 New
NC
10
Nexthera Capital
New York
$8.03M +$6.86M +1,114,097 New
D.E. Shaw & Co
11
D.E. Shaw & Co
New York
$6.43M -$1.7M -276,095 -24%
Millennium Management
12
Millennium Management
New York
$5.89M -$1.23M -199,110 -20%
GTC
13
Ghost Tree Capital
New York
$5.77M +$4.93M +800,000 New
UIC
14
Uniplan Investment Counsel
Wisconsin
$5.22M +$64.7K +10,506 +1%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$4.55M +$174K +28,285 +5%
Goldman Sachs
16
Goldman Sachs
New York
$3.91M +$2.28M +369,648 +214%
PP
17
PDT Partners
New York
$3.31M +$765K +124,200 +37%
PA
18
Perceptive Advisors
New York
$2.63M +$2.25M +365,445 New
Charles Schwab
19
Charles Schwab
California
$1.97M +$534K +86,661 +46%
BCM
20
BlueCrest Capital Management
Jersey
$1.78M +$1.06M +171,882 +230%
Susquehanna International Group
21
Susquehanna International Group
Pennsylvania
$1.76M +$538K +87,317 +56%
Deutsche Bank
22
Deutsche Bank
Germany
$1.71M +$1.25M +203,250 +605%
California Public Employees Retirement System
23
California Public Employees Retirement System
California
$1.69M
Northern Trust
24
Northern Trust
Illinois
$1.6M +$154K +24,932 +13%
UBS Group
25
UBS Group
Switzerland
$1.46M +$1.11M +180,186 +798%