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Prothena Corp
PRTA

Name Holding Trade Value Shares
Change 		Change in
Stake
CAW
101
Cornerstone Advisors (Washington)
Washington
$1K – – –
HNB
102
Huntington National Bank
Ohio
$1K – – –
LJHT
103
Laurie J. Hall Trustee
$1K – – –
BB
104
BB Biotech
Switzerland
– -$14.7M -400,000 Closed
RSCM
105
Rock Springs Capital Management
Maryland
– -$6.29M -318,500 Closed
Westfield Capital Management
106
Westfield Capital Management
Massachusetts
– -$11.4M -309,819 Closed
CLM
107
ClearBridge LLC (Maryland)
Maryland
– -$10M -273,420 Closed
CCM
108
Camber Capital Management
Massachusetts
– -$9.18M -250,000 Closed
MWNA
109
Marshall Wace North America
New York
– -$7.31M -199,129 Closed
Capital World Investors
110
Capital World Investors
California
– -$5.58M -152,000 Closed
ORI
111
Oak Ridge Investments
Illinois
– -$5.23M -142,351 Closed
GC
112
Guggenheim Capital
Illinois
– -$3.61M -98,323 Closed
Susquehanna International Group
113
Susquehanna International Group
Pennsylvania
– -$1.6M -80,753 Closed
GH
114
GAM Holding
Switzerland
– -$2.8M -76,300 Closed
EAM
115
Eventide Asset Management
Massachusetts
– -$1.36M -37,000 Closed
BG
116
Bellevue Group
Switzerland
– -$1.13M -30,850 Closed
Fisher Asset Management
117
Fisher Asset Management
Washington
– -$1.01M -27,485 Closed
TI
118
Trexquant Investment
Connecticut
– -$972K -26,465 Closed
GPCM
119
Granite Point Capital Management
Massachusetts
– -$910K -24,800 Closed
Credit Agricole
120
Credit Agricole
France
– -$901K -24,510 Closed
SM
121
Sabby Management
Florida
– -$899K -24,500 Closed
EMG
122
Ellington Management Group
Connecticut
– -$430K -11,700 Closed
OAM
123
Oxford Asset Management
United Kingdom
– -$332K -9,032 Closed
Ameriprise
124
Ameriprise
Minnesota
– -$328K -8,928 Closed
Teacher Retirement System of Texas
125
Teacher Retirement System of Texas
Texas
– -$312K -8,489 Closed
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5
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