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Prothena Corp
PRTA

Overview Fund Activity

132 hedge funds and large institutions have $531M invested in Prothena Corp in 2014 Q2 according to their latest regulatory filings, with 39 funds opening new positions, 50 increasing their positions, 18 reducing their positions, and 25 closing their positions.

Holders
132
Holders Change
+14
Holders Change %
+11.86%
% of All Funds
3.8%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.03%
New
39
Increased
50
Reduced
18
Closed
25
Calls
$6.8M
Puts
$5.51M
Net Calls
+$1.29M
Net Calls Change
+$1.8M

Top Buyers

1
Bank of America
1
Bank of America
North Carolina
$37.3M
2
Wellington Management Group
2
Wellington Management Group
Massachusetts
$53.3M
3
State Street
3
State Street
Massachusetts
$20.3M
4
T. Rowe Price Associates
4
T. Rowe Price Associates
Maryland
$66.2M
5
Westfield Capital Management
5
Westfield Capital Management
Massachusetts
$23.9M

Top Sellers

1
O
1
OrbiMed
New York
$0
2
RCM
2
RA Capital Management
Massachusetts
$0
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$62.1M
4
PHS
4
PFM Health Sciences
California
$0
5
CAM
5
Cormorant Asset Management
Massachusetts
$0
Name Market Value Shares Shares
Change 		Shares
Change %
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$66.2M 2,935,996 +680,600 +30%
Fidelity Investments
2
Fidelity Investments
Massachusetts
$62.1M 2,753,292 -1,128,289 -29%
Wellington Management Group
3
Wellington Management Group
Massachusetts
$53.3M 2,364,196 +737,613 +45%
Bank of America
4
Bank of America
North Carolina
$37.3M 1,656,044 +1,649,241 +24,243%
Westfield Capital Management
5
Westfield Capital Management
Massachusetts
$23.9M 1,061,820 +548,890 +107%
Capital World Investors
6
Capital World Investors
California
$22.8M 1,011,479 +184,859 +22%
State Street
7
State Street
Massachusetts
$20.3M 899,369 +680,869 +312%
Jennison Associates
8
Jennison Associates
New York
$19.7M 874,794 +104,060 +14%
BFA
9
BlackRock Fund Advisors
California
$18.1M 802,754 +137,972 +21%
Millennium Management
10
Millennium Management
New York
$15.6M 690,131 -50,954 -7%
Adage Capital Partners
11
Adage Capital Partners
Massachusetts
$12.4M 549,186 -266,757 -33%
PAI
12
Palo Alto Investors
California
$12M 534,018 +1,100 +0.2%
Norges Bank
13
Norges Bank
Norway
$11.3M 499,892 +245,561 +97%
PA
14
Perceptive Advisors
New York
$10.9M 483,162 +133,162 +38%
TCIM
15
TIAA CREF Investment Management
New York
$9.1M 403,608 +339,222 +527%
RG
16
Redmile Group
California
$8.36M 370,520 -189,091 -34%
Vanguard Group
17
Vanguard Group
Pennsylvania
$8.05M 357,116 +114,459 +47%
TC
18
TFS Capital
Pennsylvania
$6.95M 308,374 +286,150 +1,288%
JHIU
19
Janus Henderson Investors US
Colorado
$6.73M 298,456 +298,456 New
BIT
20
BlackRock Institutional Trust
California
$6.43M 284,912 +111,315 +64%
NI
21
Numeric Investors
Massachusetts
$5.63M 249,722 +249,722 New
GC
22
Guggenheim Capital
Illinois
$5.48M 243,011 -22,164 -8%
Alyeska Investment Group
23
Alyeska Investment Group
Illinois
$5.3M 235,000 +235,000 New
TA
24
Teachers Advisors
New York
$4.29M 190,002 +169,304 +818%
BIM
25
Bogle Investment Management
Massachusetts
$4.17M 185,008 +185,008 New
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