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Prothena Corp
PRTA

Overview Fund Activity

140 hedge funds and large institutions have $418M invested in Prothena Corp in 2020 Q4 according to their latest regulatory filings, with 25 funds opening new positions, 24 increasing their positions, 52 reducing their positions, and 24 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
140
Holders Change
–
Holders Change %
0%
% of All Funds
2.48%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.05%
New
25
Increased
24
Reduced
52
Closed
24
Calls
$3.93M
Puts
$1.88M
Net Calls
+$2.04M
Net Calls Change
+$2.49M

Top Buyers

1
FLAM
1
First Light Asset Management
Minnesota
$24.7M
2
IC
2
Ikarian Capital
Texas
$14.3M
3
PM
3
Prosight Management
Texas
$13.1M
4
PAI
4
Palo Alto Investors
California
$20.3M
5
BFM
5
Boothbay Fund Management
New York
$1.5M

Top Sellers

1
O
1
OrbiMed
New York
$21.6M
2
State Street
2
State Street
Massachusetts
$7.33M
3
GPP
3
Great Point Partners
Connecticut
$11.7M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$17.8M
5
Wellington Management Group
5
Wellington Management Group
Massachusetts
$2.7M
Name Holding Trade Value Shares
Change 		Shares
Change %
Acadian Asset Management
26
Acadian Asset Management
Massachusetts
$2.12M -$403K -33,578 -16%
Two Sigma Advisers
27
Two Sigma Advisers
New York
$2.12M -$425K -35,400 -17%
Axa
28
Axa
France
$2.11M – – –
ECM
29
Endurant Capital Management
California
$1.82M -$1.33M -110,953 -42%
Bank of New York Mellon
30
Bank of New York Mellon
New York
$1.68M -$110K -9,160 -6%
PIM
31
Platinum Investment Management
Australia
$1.54M – – –
BFM
32
Boothbay Fund Management
New York
$1.5M +$1.5M +125,249 New
Adage Capital Partners
33
Adage Capital Partners
Massachusetts
$1.5M -$901K -75,000 -38%
Morgan Stanley
34
Morgan Stanley
New York
$1.45M +$393K +32,749 +37%
Massachusetts Financial Services
35
Massachusetts Financial Services
Massachusetts
$1.3M +$257K +21,373 +25%
Russell Investments Group
36
Russell Investments Group
United Kingdom
$1.11M -$43.6K -3,637 -4%
Prudential Financial
37
Prudential Financial
New Jersey
$929K +$73.2K +6,100 +9%
AA
38
ALPS Advisors
Colorado
$866K +$866K +72,138 New
Man Group
39
Man Group
United Kingdom
$829K -$8.41K -700 -1%
California Public Employees Retirement System
40
California Public Employees Retirement System
California
$821K -$15.6K -1,300 -2%
AC
41
Apogem Capital
New York
$805K +$805K +67,013 New
RhumbLine Advisers
42
RhumbLine Advisers
Massachusetts
$797K +$61.1K +5,090 +8%
Marshall Wace
43
Marshall Wace
United Kingdom
$758K +$758K +63,073 New
PPA
44
Parametric Portfolio Associates
Washington
$723K -$383K -31,875 -35%
Swiss National Bank
45
Swiss National Bank
Switzerland
$695K – – –
Two Sigma Investments
46
Two Sigma Investments
New York
$607K -$591K -49,230 -49%
AllianceBernstein
47
AllianceBernstein
Tennessee
$602K -$58.8K -4,900 -9%
Wells Fargo
48
Wells Fargo
California
$573K +$136K +11,356 +31%
LCM
49
Lonestar Capital Management
California
$564K -$2.03M -169,435 -78%
California State Teachers Retirement System (CalSTRS)
50
California State Teachers Retirement System (CalSTRS)
California
$557K – – –
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