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Prothena Corp

Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$25.3M +$18.2M +1,959,000 New
Wellington Management Group
2
Wellington Management Group
Massachusetts
$22.5M +$16.2M +1,743,494 New
Adage Capital Partners
3
Adage Capital Partners
Massachusetts
$16.8M +$12.1M +1,300,000 New
Invesco
4
Invesco
Georgia
$16.3M +$11.7M +1,262,782 New
Jennison Associates
5
Jennison Associates
New York
$6.46M +$4.66M +500,575 New
RCM
6
RA Capital Management
Massachusetts
$6.43M +$4.63M +497,807 New
BBA
7
Baker Bros. Advisors
New York
$4.77M +$3.44M +369,650 New
Norges Bank
8
Norges Bank
Norway
$4.52M +$3.26M +350,012 New
BFA
9
BlackRock Fund Advisors
California
$3.94M +$2.84M +305,499 New
T. Rowe Price Associates
10
T. Rowe Price Associates
Maryland
$1.75M +$1.26M +135,884 New
State Street
11
State Street
Massachusetts
$1.55M +$1.12M +120,040 New
BIT
12
BlackRock Institutional Trust
California
$1.54M +$1.11M +119,704 New
Morgan Stanley
13
Morgan Stanley
New York
$1.33M +$957K +102,835 New
PAI
14
Palo Alto Investors
California
$1.14M +$823K +88,500 New
Deutsche Bank
15
Deutsche Bank
Germany
$1.06M +$763K +82,048 New
TCIM
16
TIAA CREF Investment Management
New York
$738K +$532K +57,148 New
Northern Trust
17
Northern Trust
Illinois
$691K +$497K +53,437 New
Bank of New York Mellon
18
Bank of New York Mellon
New York
$631K +$454K +48,835 New
BIM
19
BlackRock Investment Management
Delaware
$502K +$362K +38,884 New
GIM
20
Granahan Investment Management
Massachusetts
$483K +$348K +37,394 New
APG Asset Management
21
APG Asset Management
Netherlands
$381K +$274K +29,494 New
Vanguard Group
22
Vanguard Group
Pennsylvania
$365K +$263K +28,260 New
Acadian Asset Management
23
Acadian Asset Management
Massachusetts
$359K +$259K +27,834 New
Susquehanna International Group
24
Susquehanna International Group
Pennsylvania
$269K +$194K +20,827 New
California State Teachers Retirement System (CalSTRS)
25
California State Teachers Retirement System (CalSTRS)
California
$267K +$193K +20,697 New