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Prothena Corp
PRTA

Overview Fund Activity

147 hedge funds and large institutions have $1.42B invested in Prothena Corp in 2015 Q3 according to their latest regulatory filings, with 20 funds opening new positions, 47 increasing their positions, 45 reducing their positions, and 11 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
147
Holders Change
+9
Holders Change %
+6.52%
% of All Funds
4.11%
Holding in Top 10
2
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-33.33%
% of All Funds
0.06%
New
20
Increased
47
Reduced
45
Closed
11
Calls
$13.1M
Puts
$9.59M
Net Calls
+$3.55M
Net Calls Change
+$1.99M

Top Buyers

1
WIM
1
Woodford Investment Management
United Kingdom
$281M
2
Citadel Advisors
2
Citadel Advisors
Florida
$37.4M
3
BB
3
BB Biotech
Switzerland
$14.5M
4
Deutsche Bank
4
Deutsche Bank
Germany
$11.2M
5
Axa
5
Axa
France
$8.25M

Top Sellers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$44.8M
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$141M
3
Marshall Wace
3
Marshall Wace
United Kingdom
$0
4
Millennium Management
4
Millennium Management
New York
$12.9M
5
CCI
5
Columbus Circle Investors
$7.25M
Name Holding Trade Value Shares
Change 		Shares
Change %
EWM
126
Edge Wealth Management
New York
$4K +$4K +100 New
HNB
127
Huntington National Bank
Ohio
$3K – – –
JIC
128
Joel Isaacson & Co
New York
$2K – – –
Bessemer Group
129
Bessemer Group
New Jersey
$2K +$2K +37 New
CFA
130
Camarda Financial Advisors
Florida
$1K – – –
GI
131
Gradient Investments
Minnesota
$1K – – –
BKA
132
Brick & Kyle Associates
Pennsylvania
$1K – – –
WT
133
Whittier Trust
California
$1K – – –
PSI
134
Pinnacle Summer Investments
Virginia
$1K – – –
HMS
135
Hanseatic Management Services
New Mexico
$1K +$1K +20 New
Manulife (Manufacturers Life Insurance)
136
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$878 +$22 +490 +3%
Marshall Wace
137
Marshall Wace
United Kingdom
– -$11.7M -222,360 Closed
GIM
138
Granahan Investment Management
Massachusetts
– -$1.79M -33,894 Closed
CI
139
Cowen Inc
New York
– -$1.19M -22,556 Closed
Neuberger Berman Group
140
Neuberger Berman Group
New York
– -$1.13M -21,524 Closed
OAC
141
OMERS Administration Corp
Ontario, Canada
– -$679K -12,900 Closed
GGHC
142
Gilder Gagnon Howe & Co
New York
– -$491K -9,321 Closed
M&T Bank
143
M&T Bank
New York
– -$239K -4,528 Closed
HFS
144
HL Financial Services
Kentucky
– -$208K -3,948 Closed
FNBT
145
FineMark National Bank & Trust
Florida
– -$6K -123 Closed
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