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Prothena Corp

Name Holding Trade Value Shares
Change
Change in
Stake
EC
1
EcoR1 Capital
California
$94.2M
BlackRock
2
BlackRock
New York
$37.2M +$8.32M +691,989 +23%
O
3
OrbiMed
New York
$35.4M
Fidelity Investments
4
Fidelity Investments
Massachusetts
$20M +$495K +41,121 +2%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$17.6M -$443K -36,831 -2%
GPP
6
Great Point Partners
Connecticut
$15.5M -$6.43M -534,362 -26%
PAI
7
Palo Alto Investors
California
$13.3M +$6.71M +557,669 +72%
State Street
8
State Street
Massachusetts
$12.3M -$2.46M -204,174 -14%
RSCM
9
Rock Springs Capital Management
Maryland
$10.2M +$433K +35,989 +4%
Wellington Management Group
10
Wellington Management Group
Massachusetts
$6.06M -$3.6M -299,319 -33%
Vanguard Group
11
Vanguard Group
Pennsylvania
$5.74M -$2.39M -199,075 -26%
PM
12
Prosight Management
Texas
$5.45M +$6.56M +545,195 New
Goldman Sachs
13
Goldman Sachs
New York
$5.14M +$1.07M +88,627 +21%
Geode Capital Management
14
Geode Capital Management
Massachusetts
$4.68M -$965K -80,180 -15%
Northern Trust
15
Northern Trust
Illinois
$3.86M -$538K -44,714 -10%
Nuveen
16
Nuveen
North Carolina
$3.81M +$254K +21,076 +6%
AG
17
Artal Group
Luxembourg
$3.51M -$223K -18,500 -5%
PA
18
Pinnacle Associates
New York
$3.31M -$143K -11,901 -3%
Jacobs Levy Equity Management
19
Jacobs Levy Equity Management
New Jersey
$3.18M -$176K -14,615 -4%
D.E. Shaw & Co
20
D.E. Shaw & Co
New York
$2.94M -$661K -54,909 -16%
Renaissance Technologies
21
Renaissance Technologies
New York
$2.65M -$1.48M -122,762 -32%
ECM
22
Endurant Capital Management
California
$2.63M -$1.7M -141,020 -35%
Hudson Bay Capital Management
23
Hudson Bay Capital Management
Connecticut
$2.25M +$222K +18,445 +9%
LCM
24
Lonestar Capital Management
California
$2.16M -$874K -72,620 -25%
Two Sigma Advisers
25
Two Sigma Advisers
New York
$2.11M -$38.5K -3,200 -1%