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Prothena Corp
PRTA

Overview Fund Activity

145 hedge funds and large institutions have $2.3B invested in Prothena Corp in 2017 Q2 according to their latest regulatory filings, with 17 funds opening new positions, 54 increasing their positions, 34 reducing their positions, and 18 closing their positions.

Holders
145
Holders Change
-1
Holders Change %
-0.68%
% of All Funds
3.62%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.02%
New
17
Increased
54
Reduced
34
Closed
18
Calls
$9.05M
Puts
$10.9M
Net Calls
-$1.8M
Net Calls Change
+$702K

Top Buyers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$37M
2
WIM
2
Woodford Investment Management
United Kingdom
$617M
3
PC
3
PointState Capital
New York
$14.7M
4
BlackRock
4
BlackRock
New York
$160M
5
Wellington Management Group
5
Wellington Management Group
Massachusetts
$177M

Top Sellers

1
RG
1
Redmile Group
California
$27.6M
2
GTC
2
Ghost Tree Capital
New York
$0
3
HCMT
3
Highland Capital Management (Texas)
Texas
$0
4
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$239M
5
AAMU
5
Amundi Asset Management US
Massachusetts
$3.14M
Name Market Value Shares Shares
Change 		Shares
Change %
WIM
1
Woodford Investment Management
United Kingdom
$617M 11,400,424 +294,213 +3%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$308M 5,699,234 +39,926 +0.7%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$239M 4,422,265 -60,499 -1%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$177M 3,272,862 +114,850 +4%
BlackRock
5
BlackRock
New York
$160M 2,947,512 +213,578 +8%
Capital World Investors
6
Capital World Investors
California
$71.6M 1,323,114 – –
State Street
7
State Street
Massachusetts
$63.9M 1,181,365 +113,193 +11%
PAI
8
Palo Alto Investors
California
$58.1M 1,073,955 +18,100 +2%
AllianceBernstein
9
AllianceBernstein
Tennessee
$48.5M 895,759 +57,002 +7%
Vanguard Group
10
Vanguard Group
Pennsylvania
$38.6M 713,084 +13,226 +2%
Westfield Capital Management
11
Westfield Capital Management
Massachusetts
$37M 684,160 +444,966 +186%
RG
12
Redmile Group
California
$27.6M 509,698 -339,785 -40%
Jennison Associates
13
Jennison Associates
New York
$22.3M 411,903 +2,321 +0.6%
ORI
14
Oak Ridge Investments
Illinois
$21.9M 405,376 -14,598 -3%
Northern Trust
15
Northern Trust
Illinois
$21.8M 402,811 -19,680 -5%
PA
16
Pinnacle Associates
New York
$20M 369,333 -18,250 -5%
BB
17
BB Biotech
Switzerland
$18.9M 350,000 – –
Geode Capital Management
18
Geode Capital Management
Massachusetts
$18.3M 338,650 +19,511 +6%
Loomis, Sayles & Company
19
Loomis, Sayles & Company
Massachusetts
$18.1M 334,914 +7,139 +2%
Norges Bank
20
Norges Bank
Norway
$16.8M 310,957 -48,469 -13%
RSCM
21
Rock Springs Capital Management
Maryland
$16.8M 309,500 – –
Goldman Sachs
22
Goldman Sachs
New York
$16.6M 306,197 -20,357 -6%
Wells Fargo
23
Wells Fargo
California
$15.1M 279,015 -36,619 -12%
PC
24
PointState Capital
New York
$14.7M 272,500 +272,500 New
Invesco
25
Invesco
Georgia
$13.9M 256,037 -4,653 -2%
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