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Prothena Corp
PRTA

Overview Fund Activity

125 hedge funds and large institutions have $610M invested in Prothena Corp in 2018 Q2 according to their latest regulatory filings, with 22 funds opening new positions, 35 increasing their positions, 37 reducing their positions, and 39 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
125
Holders Change
-17
Holders Change %
-11.97%
% of All Funds
2.87%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
22
Increased
35
Reduced
37
Closed
39
Calls
$9.92M
Puts
$6.78M
Net Calls
+$3.14M
Net Calls Change
-$40.3M

Top Buyers

1
SCM
1
Scopia Capital Management
New York
$51.2M
2
State Street
2
State Street
Massachusetts
$49.9M
3
DM
3
Deerfield Management
New York
$9.16M
4
Citadel Advisors
4
Citadel Advisors
Florida
$8.48M
5
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$7.8M

Top Sellers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$11.6M
2
AllianceBernstein
2
AllianceBernstein
Tennessee
$819K
3
BB
3
BB Biotech
Switzerland
$0
4
RSCM
4
Rock Springs Capital Management
Maryland
$0
5
Westfield Capital Management
5
Westfield Capital Management
Massachusetts
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
HNB
101
Huntington National Bank
Ohio
$1K – – –
LJHT
102
Laurie J. Hall Trustee
$1K – – –
CAW
103
Cornerstone Advisors (Washington)
Washington
$1K – – –
BB
104
BB Biotech
Switzerland
– -$14.7M -400,000 Closed
RSCM
105
Rock Springs Capital Management
Maryland
– -$11.7M -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
– -$2.96M -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
2 3 4
5
6