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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 %
ICAP
76
Independence Capital Asset Partners
Colorado
$634K -$297K -6,546 -32%
MIG
77
Mariner Investment Group
New York
$617K -$454K -10,000 -42%
VOYA Investment Management
78
VOYA Investment Management
Georgia
$616K -$73K -1,610 -11%
BG
79
BlackRock Group
United Kingdom
$608K +$286K +6,320 +89%
Two Sigma Advisers
80
Two Sigma Advisers
New York
$565K -$1.42M -25,700 -72%
D.E. Shaw & Co
81
D.E. Shaw & Co
New York
$556K -$186K -4,100 -25%
SAMC
82
Shinko Asset Management Company
Japan
$535K +$535K +11,794 New
Citigroup
83
Citigroup
New York
$521K +$182K +4,022 +54%
Public Employees Retirement Association of Colorado
84
Public Employees Retirement Association of Colorado
Colorado
$509K -$58.8K -1,297 -10%
Wells Fargo
85
Wells Fargo
California
$498K -$1.41M -30,982 -74%
HI
86
HBK Investments
Texas
$462K -$408K -9,000 -47%
Barclays
87
Barclays
United Kingdom
$416K +$292K +6,498 +236%
PPA
88
Parametric Portfolio Associates
Washington
$398K -$4.99K -110 -1%
Simplex Trading
89
Simplex Trading
Illinois
$390K +$206K +4,552 +112%
Royal Bank of Canada
90
Royal Bank of Canada
Ontario, Canada
$351K +$172K +3,784 +96%
SG Americas Securities
91
SG Americas Securities
New York
$345K -$846K -18,682 -71%
AQR Capital Management
92
AQR Capital Management
Connecticut
$318K +$318K +7,012 New
CPIG
93
Chicago Partners Investment Group
Illinois
$311K – – –
MC
94
Moors & Cabot
Massachusetts
$298K +$298K +6,543 New
NYLIM
95
New York Life Investment Management
New York
$273K +$13.2K +291 +5%
HighTower Advisors
96
HighTower Advisors
Illinois
$255K +$255K +5,590 New
Tudor Investment Corp
97
Tudor Investment Corp
Connecticut
$254K -$297K -6,541 -54%
WC
98
Whitnell & Co
Illinois
$249K – – –
Principal Financial Group
99
Principal Financial Group
Iowa
$240K +$26.2K +577 +12%
PNC Financial Services Group
100
PNC Financial Services Group
Pennsylvania
$237K -$98.2K -2,174 -29%
2 3
4
5 6