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Prothena Corp
PRTA

Overview Fund Activity

118 hedge funds and large institutions have $832M invested in Prothena Corp in 2014 Q1 according to their latest regulatory filings, with 29 funds opening new positions, 42 increasing their positions, 23 reducing their positions, and 17 closing their positions.

Holders
118
Holders Change
+11
Holders Change %
+10.28%
% of All Funds
3.41%
Holding in Top 10
2
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.06%
New
29
Increased
42
Reduced
23
Closed
17
Calls
$8.75M
Puts
$9.26M
Net Calls
-$515K
Net Calls Change
-$2.3M

Top Buyers

1
Fidelity Investments
1
Fidelity Investments
Massachusetts
$149M
2
Capital World Investors
2
Capital World Investors
California
$31.7M
3
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$86.4M
4
O
4
OrbiMed
New York
$72.4M
5
Millennium Management
5
Millennium Management
New York
$28.4M

Top Sellers

1
Westfield Capital Management
1
Westfield Capital Management
Massachusetts
$19.7M
2
DM
2
Deerfield Management
New York
$0
3
Adage Capital Partners
3
Adage Capital Partners
Massachusetts
$31.3M
4
BBA
4
Baker Bros. Advisors
New York
$8.82M
5
RCM
5
RA Capital Management
Massachusetts
$59.6M
Name Market Value Shares Shares
Change 		Shares
Change %
Fidelity Investments
1
Fidelity Investments
Massachusetts
$149M 3,881,581 +1,128,289 +41%
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$86.4M 2,255,396 +798,590 +55%
O
3
OrbiMed
New York
$72.4M 1,889,000 +687,000 +57%
Wellington Management Group
4
Wellington Management Group
Massachusetts
$62.3M 1,626,583 +206,940 +15%
RCM
5
RA Capital Management
Massachusetts
$59.6M 1,554,918 -86,249 -5%
Capital World Investors
6
Capital World Investors
California
$31.7M 826,620 +826,620 New
Adage Capital Partners
7
Adage Capital Partners
Massachusetts
$31.3M 815,943 -150,000 -16%
Jennison Associates
8
Jennison Associates
New York
$29.5M 770,734 -63,121 -8%
Millennium Management
9
Millennium Management
New York
$28.4M 741,085 +552,318 +293%
BFA
10
BlackRock Fund Advisors
California
$25.5M 664,782 +19,656 +3%
RG
11
Redmile Group
California
$21.4M 559,611 +550,511 +6,050%
PHS
12
PFM Health Sciences
California
$20.8M 541,983 +541,983 New
PAI
13
Palo Alto Investors
California
$20.4M 532,918 -4,500 -0.8%
Westfield Capital Management
14
Westfield Capital Management
Massachusetts
$19.7M 512,930 -426,850 -45%
CAM
15
Cormorant Asset Management
Massachusetts
$13.4M 350,000 +350,000 New
PA
16
Perceptive Advisors
New York
$13.4M 350,000 +350,000 New
GC
17
Guggenheim Capital
Illinois
$10.2M 265,175 +13,830 +6%
Norges Bank
18
Norges Bank
Norway
$9.74M 254,331 -5,969 -2%
Vanguard Group
19
Vanguard Group
Pennsylvania
$9.3M 242,657 +74,387 +44%
BBA
20
Baker Bros. Advisors
New York
$8.82M 230,142 -106,776 -32%
State Street
21
State Street
Massachusetts
$8.37M 218,500 +23,421 +12%
Morgan Stanley
22
Morgan Stanley
New York
$7.99M 208,597 +201,182 +2,713%
Northern Trust
23
Northern Trust
Illinois
$7.34M 191,702 -6,068 -3%
BIT
24
BlackRock Institutional Trust
California
$6.65M 173,597 +7,504 +5%
CCM
25
Cupps Capital Management
Illinois
$6.29M 164,199 +164,199 New
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