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Prothena Corp

Name Holding Trade Value Shares
Change
Change in
Stake
Fidelity Investments
1
Fidelity Investments
Massachusetts
$77.1M
BlackRock
2
BlackRock
New York
$35.1M -$2.62M -340,981 -9%
Vanguard Group
3
Vanguard Group
Pennsylvania
$20M -$971K -126,378 -6%
AC
4
Armistice Capital
New York
$17.8M -$3.17M -412,000 -18%
RCMNY
5
Rubric Capital Management (New York)
New York
$15M +$11.8M +1,540,373 New
ACM
6
ADAR1 Capital Management
Texas
$14.3M -$14.6M -1,905,911 -56%
PAI
7
Palo Alto Investors
California
$12.9M +$379K +49,275 +4%
D.E. Shaw & Co
8
D.E. Shaw & Co
New York
$12.8M +$7.1M +923,923 +236%
Acadian Asset Management
9
Acadian Asset Management
Massachusetts
$12.1M +$1.7M +221,065 +22%
Geode Capital Management
10
Geode Capital Management
Massachusetts
$9.95M +$661K +86,037 +9%
State Street
11
State Street
Massachusetts
$8.79M -$799K -103,964 -10%
Jacobs Levy Equity Management
12
Jacobs Levy Equity Management
New Jersey
$8.55M +$1.41M +183,374 +26%
Dimensional Fund Advisors
13
Dimensional Fund Advisors
Texas
$7.88M -$1.19M -155,351 -16%
Morgan Stanley
14
Morgan Stanley
New York
$7.8M -$1.18M -153,582 -16%
Citadel Advisors
15
Citadel Advisors
Florida
$7.49M -$2.92M -380,517 -33%
JP Morgan Chase
16
JP Morgan Chase
New York
$7.18M +$4.68M +608,814 +480%
Federated Hermes
17
Federated Hermes
Pennsylvania
$6.76M -$3.75M -488,269 -41%
Nuveen
18
Nuveen
North Carolina
$6.52M +$4.2M +546,135 +447%
Arrowstreet Capital
19
Arrowstreet Capital
Massachusetts
$6.39M +$5.03M +654,294 New
Point72 Asset Management
20
Point72 Asset Management
Connecticut
$6.31M +$4.97M +646,746 New
Millennium Management
21
Millennium Management
New York
$6.06M +$3.46M +450,520 +264%
Jane Street
22
Jane Street
New York
$6.05M +$3.86M +502,339 +428%
Mariner
23
Mariner
Kansas
$5.77M +$1.57M +204,189 +53%
RC
24
Rangeley Capital
Connecticut
$5.47M -$1.19M -154,910 -22%
BC
25
Birchview Capital
Vermont
$5.36M +$753K +98,000 +22%