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Prothena Corp

Name Holding Trade Value Shares
Change
Change in
Stake
EC
1
EcoR1 Capital
California
$804M
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$432M +$14.9M +239,544 +4%
BlackRock
3
BlackRock
New York
$269M +$5.46M +87,856 +2%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$189M -$8M -128,856 -5%
PAI
5
Palo Alto Investors
California
$120M -$2.87M -46,200 -3%
Dimensional Fund Advisors
6
Dimensional Fund Advisors
Texas
$113M -$355K -5,713 -0.4%
FLAM
7
First Light Asset Management
Minnesota
$103M -$29.7M -478,335 -25%
State Street
8
State Street
Massachusetts
$100M +$11M +176,765 +14%
RG
9
Redmile Group
California
$64.2M -$19.5M -314,166 -26%
Vanguard Group
10
Vanguard Group
Pennsylvania
$61.9M +$11.6M +187,382 +28%
RSCM
11
Rock Springs Capital Management
Maryland
$50.6M -$14.9M -239,661 -25%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$44.2M +$3.53M +56,817 +10%
Nuveen
13
Nuveen
North Carolina
$34.1M +$1.83M +29,404 +7%
Two Sigma Advisers
14
Two Sigma Advisers
New York
$33.7M +$3.19M +51,400 +12%
Northern Trust
15
Northern Trust
Illinois
$31.4M -$18.6K -299 -0.1%
Invesco
16
Invesco
Georgia
$24.7M +$3.2M +51,565 +17%
PM
17
Prosight Management
Texas
$23M -$6.13M -98,700 -23%
Two Sigma Investments
18
Two Sigma Investments
New York
$22.9M -$983K -15,824 -5%
BC
19
Boxer Capital
California
$21.4M +$18.6M +300,000 New
UBS AM
20
UBS AM
Illinois
$19.9M -$7.6M -122,345 -30%
Renaissance Technologies
21
Renaissance Technologies
New York
$18.3M +$1.17M +18,900 +8%
Charles Schwab
22
Charles Schwab
California
$17.2M +$2.17M +34,889 +17%
ACM
23
Atika Capital Management
New York
$16M -$584K -9,400 -4%
Point72 Asset Management
24
Point72 Asset Management
Connecticut
$11.5M -$429K -6,900 -4%
PA
25
Pinnacle Associates
New York
$10.8M -$3.36M -54,142 -26%