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Prothena Corp
PRTA

Overview Fund Activity

146 hedge funds and large institutions have $2.32B invested in Prothena Corp in 2017 Q1 according to their latest regulatory filings, with 21 funds opening new positions, 45 increasing their positions, 44 reducing their positions, and 13 closing their positions.

Holders
146
Holders Change
+1
Holders Change %
+0.69%
% of All Funds
3.64%
Holding in Top 10
2
Holding in Top 10 Change
+1
Holding in Top 10 Change %
+100%
% of All Funds
0.05%
New
21
Increased
45
Reduced
44
Closed
13
Calls
$11.7M
Puts
$14.2M
Net Calls
-$2.51M
Net Calls Change
-$4.62M

Top Buyers

1
BlackRock
1
BlackRock
New York
$153M
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$250M
3
WIM
3
Woodford Investment Management
United Kingdom
$619M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$316M
5
Citadel Advisors
5
Citadel Advisors
Florida
$15.9M

Top Sellers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$13.3M
2
CCI
2
Columbus Circle Investors
$0
3
Citigroup
3
Citigroup
New York
$1.6M
4
ORI
4
Oak Ridge Investments
Illinois
$23.4M
5
Morgan Stanley
5
Morgan Stanley
New York
$4.63M
Name Market Value Shares Shares
Change 		Shares
Change %
WIM
1
Woodford Investment Management
United Kingdom
$619M 11,106,211 +795,700 +8%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$316M 5,659,308 +486,044 +9%
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$250M 4,482,764 +1,167,587 +35%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$176M 3,158,012 +138,979 +5%
BlackRock
5
BlackRock
New York
$153M 2,733,934 +2,731,073 +95,459%
Capital World Investors
6
Capital World Investors
California
$73.8M 1,323,114 – –
State Street
7
State Street
Massachusetts
$59.6M 1,068,172 -17,239 -2%
PAI
8
Palo Alto Investors
California
$58.9M 1,055,855 +62,000 +6%
RG
9
Redmile Group
California
$47.4M 849,483 +195,758 +30%
AllianceBernstein
10
AllianceBernstein
Tennessee
$46.8M 838,757 +15,442 +2%
Vanguard Group
11
Vanguard Group
Pennsylvania
$39M 699,858 +97,631 +16%
Northern Trust
12
Northern Trust
Illinois
$23.6M 422,491 +27,063 +7%
ORI
13
Oak Ridge Investments
Illinois
$23.4M 419,974 -61,053 -13%
Jennison Associates
14
Jennison Associates
New York
$22.9M 409,582 – –
PA
15
Pinnacle Associates
New York
$21.6M 387,583 -18,389 -5%
Norges Bank
16
Norges Bank
Norway
$20.1M 359,426 -12,127 -3%
BB
17
BB Biotech
Switzerland
$19.5M 350,000 – –
Loomis, Sayles & Company
18
Loomis, Sayles & Company
Massachusetts
$18.3M 327,775 +131,805 +67%
Goldman Sachs
19
Goldman Sachs
New York
$18.2M 326,554 +255,060 +357%
Geode Capital Management
20
Geode Capital Management
Massachusetts
$17.8M 319,139 +37,801 +13%
Wells Fargo
21
Wells Fargo
California
$17.6M 315,634 -56,176 -15%
RSCM
22
Rock Springs Capital Management
Maryland
$17.3M 309,500 – –
Citadel Advisors
23
Citadel Advisors
Florida
$15.9M 284,497 +263,805 +1,275%
Invesco
24
Invesco
Georgia
$14.5M 260,690 -1,554 -0.6%
Westfield Capital Management
25
Westfield Capital Management
Massachusetts
$13.3M 239,194 -89,081 -27%
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