PRTA icon

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 Holding Trade Value Shares
Change 		Shares
Change %
Geode Capital Management
26
Geode Capital Management
Massachusetts
$4.69M +$1.2M +31,377 +34%
Invesco
27
Invesco
Georgia
$4.54M +$1.21M +31,674 +36%
GTC
28
Ghost Tree Capital
New York
$4.21M -$766K -20,000 -15%
Bank of New York Mellon
29
Bank of New York Mellon
New York
$3.29M +$531K +13,866 +19%
PC
30
PointState Capital
New York
$3.07M +$3.07M +80,000 New
Renaissance Technologies
31
Renaissance Technologies
New York
$3.03M +$556K +14,512 +22%
Two Sigma Investments
32
Two Sigma Investments
New York
$2.52M +$1.84M +47,993 +270%
JG
33
Jefferies Group
New York
$2.5M +$2.5M +65,350 New
RSCM
34
Rock Springs Capital Management
Maryland
$2.49M +$2.49M +65,000 New
TCIM
35
TIAA CREF Investment Management
New York
$2.47M -$75.5K -1,971 -3%
EAM
36
Eventide Asset Management
Massachusetts
$2.23M +$2.23M +58,300 New
ACM
37
Atika Capital Management
New York
$2.2M +$766K +20,000 +53%
SFM
38
Sphera Funds Management
Israel
$2.11M +$192K +5,000 +10%
SIM
39
Spark Investment Management
New York
$2.01M +$417K +10,900 +26%
BIM
40
BlackRock Investment Management
Delaware
$1.86M +$23.8K +620 +1%
WC
41
Wexford Capital
Florida
$1.85M +$1.85M +48,195 New
WMSA
42
Weiss Multi-Strategy Advisers
New York
$1.53M -$1.34M -35,000 -47%
GIM
43
Granahan Investment Management
Massachusetts
$1.3M – – –
Goldman Sachs
44
Goldman Sachs
New York
$1.23M -$2.49M -64,902 -67%
ProShare Advisors
45
ProShare Advisors
Maryland
$1.19M +$784K +20,452 +191%
ARC
46
Absolute Return Capital
Massachusetts
$1.06M +$1.06M +27,665 New
ARTA
47
A.R.T. Advisors
New York
$1.06M +$721K +18,847 +216%
CS
48
Credit Suisse
Switzerland
$1.01M +$209K +5,469 +26%
California State Teachers Retirement System (CalSTRS)
49
California State Teachers Retirement System (CalSTRS)
California
$988K – – –
IHM
50
Iguana Healthcare Management
New York
$958K +$958K +25,000 New
1
2
3 4 5