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Prothena Corp
PRTA

Overview Fund Activity

138 hedge funds and large institutions have $1.62B invested in Prothena Corp in 2015 Q2 according to their latest regulatory filings, with 25 funds opening new positions, 48 increasing their positions, 35 reducing their positions, and 10 closing their positions.

Holders
138
Holders Change
+14
Holders Change %
+11.29%
% of All Funds
3.72%
Holding in Top 10
3
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+50%
% of All Funds
0.08%
New
25
Increased
48
Reduced
35
Closed
10
Calls
$12.2M
Puts
$10.6M
Net Calls
+$1.57M
Net Calls Change
+$6.55M

Top Buyers

1
WIM
1
Woodford Investment Management
United Kingdom
$291M
2
VAM
2
Visium Asset Management
New York
$52.5M
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$247M
4
Citadel Advisors
4
Citadel Advisors
Florida
$22M
5
CCI
5
Columbus Circle Investors
$14.8M

Top Sellers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$73.4M
2
Millennium Management
2
Millennium Management
New York
$28.4M
3
Jennison Associates
3
Jennison Associates
New York
$21.2M
4
State Street
4
State Street
Massachusetts
$56.1M
5
TI
5
Turner Investments
Pennsylvania
$9.16M
Name Market Value Shares Shares
Change 		Shares
Change %
WIM
1
Woodford Investment Management
United Kingdom
$291M 5,527,525 +1,819,354 +49%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$247M 4,692,882 +582,952 +14%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$183M 3,475,196 +35,900 +1%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$133M 2,527,043 +26,331 +1%
Westfield Capital Management
5
Westfield Capital Management
Massachusetts
$73.4M 1,392,850 -342,078 -20%
Capital World Investors
6
Capital World Investors
California
$64.4M 1,223,114 -40,100 -3%
BFA
7
BlackRock Fund Advisors
California
$60.6M 1,150,206 +78,692 +7%
State Street
8
State Street
Massachusetts
$56.1M 1,065,977 -123,599 -10%
VAM
9
Visium Asset Management
New York
$52.5M 996,887 +694,848 +230%
PAI
10
Palo Alto Investors
California
$36.7M 695,918 – –
BIT
11
BlackRock Institutional Trust
California
$33.6M 637,387 +93,366 +17%
Millennium Management
12
Millennium Management
New York
$28.4M 539,913 -198,516 -27%
Northern Trust
13
Northern Trust
Illinois
$25.5M 484,021 +59,389 +14%
Vanguard Group
14
Vanguard Group
Pennsylvania
$24.3M 460,483 +66,838 +17%
Citadel Advisors
15
Citadel Advisors
Florida
$22M 417,890 +313,553 +301%
Jennison Associates
16
Jennison Associates
New York
$21.2M 401,730 -174,562 -30%
Invesco
17
Invesco
Georgia
$15.4M 291,645 +26,894 +10%
CCI
18
Columbus Circle Investors
$14.8M 281,415 +281,415 New
ORI
19
Oak Ridge Investments
Illinois
$13.9M 263,266 +263,266 New
RSCM
20
Rock Springs Capital Management
Maryland
$13.2M 250,000 +12,500 +5%
Marshall Wace
21
Marshall Wace
United Kingdom
$11.7M 222,360 +204,290 +1,131%
TA
22
Teachers Advisors
New York
$10.7M 203,065 +7,890 +4%
Geode Capital Management
23
Geode Capital Management
Massachusetts
$10.5M 200,180 +35,267 +21%
GC
24
Guggenheim Capital
Illinois
$10.3M 195,538 +4,472 +2%
Bank of New York Mellon
25
Bank of New York Mellon
New York
$10.2M 192,900 +41,115 +27%
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