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Prothena Corp
PRTA

Overview Fund Activity

161 hedge funds and large institutions have $2.13B invested in Prothena Corp in 2015 Q4 according to their latest regulatory filings, with 28 funds opening new positions, 65 increasing their positions, 40 reducing their positions, and 13 closing their positions.

Holders
161
Holders Change
+14
Holders Change %
+9.52%
% of All Funds
4.23%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.08%
New
28
Increased
65
Reduced
40
Closed
13
Calls
$15M
Puts
$17.2M
Net Calls
-$2.22M
Net Calls Change
-$5.78M

Top Buyers

1
AllianceBernstein
1
AllianceBernstein
Tennessee
$25M
2
PA
2
Pinnacle Associates
New York
$20.2M
3
Wells Fargo
3
Wells Fargo
California
$16.7M
4
Deutsche Bank
4
Deutsche Bank
Germany
$32.8M
5
WIM
5
Woodford Investment Management
United Kingdom
$435M

Top Sellers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$3.12M
2
Citadel Advisors
2
Citadel Advisors
Florida
$32M
3
Millennium Management
3
Millennium Management
New York
$213K
4
State Street
4
State Street
Massachusetts
$55.1M
5
GC
5
Guggenheim Capital
Illinois
$4.74M
Name Holding Trade Value Shares
Change 		Shares
Change %
Westfield Capital Management
51
Westfield Capital Management
Massachusetts
$3.12M -$64.2M -942,149 -95%
Swiss National Bank
52
Swiss National Bank
Switzerland
$2.93M – – –
American Century Companies
53
American Century Companies
Missouri
$2.8M +$752K +11,043 +37%
CCP
54
Clough Capital Partners
Massachusetts
$2.62M -$1.84M -27,000 -41%
BA
55
BlackRock Advisors
Delaware
$2.44M -$134K -1,971 -5%
NFA
56
Nationwide Fund Advisors
Ohio
$2.44M +$1.07M +15,683 +78%
Ameriprise
57
Ameriprise
Minnesota
$2.23M +$125K +1,832 +6%
New York State Common Retirement Fund
58
New York State Common Retirement Fund
New York
$2.11M +$81.7K +1,200 +4%
BAMS
59
Bellevue Asset Management (Switzerland)
Switzerland
$2.11M +$1.09M +16,000 +107%
RhumbLine Advisers
60
RhumbLine Advisers
Massachusetts
$2.1M +$146K +2,140 +7%
ProShare Advisors
61
ProShare Advisors
Maryland
$2.04M +$204K +2,990 +11%
Group One Trading
62
Group One Trading
Illinois
$1.89M -$679K -9,970 -26%
Two Sigma Investments
63
Two Sigma Investments
New York
$1.75M +$1.44M +21,104 +457%
AQR Capital Management
64
AQR Capital Management
Connecticut
$1.6M +$1.12M +16,490 +235%
UBS Group
65
UBS Group
Switzerland
$1.39M -$728K -10,687 -34%
Fisher Asset Management
66
Fisher Asset Management
Washington
$1.3M – – –
SAMC
67
Shinko Asset Management Company
Japan
$1.3M +$494K +7,246 +61%
RFC
68
Russell Frank Company
Washington
$1.29M -$143K -2,044 -10%
CG
69
Cutler Group
California
$1.28M +$1.28M +18,812 New
Morgan Stanley
70
Morgan Stanley
New York
$1.28M +$125K +1,830 +11%
AIG
71
American International Group
New York
$1.25M -$2.18K -32 -0.2%
MIG
72
Mariner Investment Group
New York
$1.23M +$307K +4,504 +33%
State Board of Administration of Florida Retirement System
73
State Board of Administration of Florida Retirement System
Florida
$1.18M +$54.7K +803 +5%
HI
74
HBK Investments
Texas
$1.13M +$436K +6,400 +63%
DekaBank Deutsche Girozentrale
75
DekaBank Deutsche Girozentrale
Germany
$1.11M +$14K +200 +1%
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3
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