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Prothena Corp
PRTA

Overview Fund Activity

192 hedge funds and large institutions have $2.91B invested in Prothena Corp in 2021 Q3 according to their latest regulatory filings, with 50 funds opening new positions, 57 increasing their positions, 49 reducing their positions, and 13 closing their positions.

Holders
192
Holders Change
+36
Holders Change %
+23.08%
% of All Funds
3.37%
Holding in Top 10
5
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.09%
New
50
Increased
57
Reduced
49
Closed
13
Calls
$18.1M
Puts
$11.4M
Net Calls
+$6.73M
Net Calls Change
-$1.25M

Top Buyers

1
BC
1
Boxer Capital
California
$21.4M
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$432M
3
Vanguard Group
3
Vanguard Group
Pennsylvania
$61.9M
4
State Street
4
State Street
Massachusetts
$100M
5
SG Americas Securities
5
SG Americas Securities
New York
$8.27M

Top Sellers

1
FLAM
1
First Light Asset Management
Minnesota
$103M
2
RG
2
Redmile Group
California
$64.2M
3
RSCM
3
Rock Springs Capital Management
Maryland
$50.6M
4
APM
4
Avidity Partners Management
Texas
$0
5
Fidelity Investments
5
Fidelity Investments
Massachusetts
$189M
Name Holding Trade Value Shares
Change 		Shares
Change %
Millennium Management
26
Millennium Management
New York
$10.8M +$4.54M +63,725 +72%
Prudential Financial
27
Prudential Financial
New Jersey
$10.3M +$6.22M +87,270 +153%
Bank of New York Mellon
28
Bank of New York Mellon
New York
$9.78M +$130K +1,832 +1%
Voloridge Investment Management
29
Voloridge Investment Management
Florida
$9.07M +$3.68M +51,596 +68%
TD Asset Management
30
TD Asset Management
Ontario, Canada
$9.04M +$294K +4,125 +3%
Federated Hermes
31
Federated Hermes
Pennsylvania
$8.88M +$5.77M +80,996 +185%
PPA
32
Parametric Portfolio Associates
Washington
$8.85M +$2.16M +30,344 +32%
SG Americas Securities
33
SG Americas Securities
New York
$8.27M +$7.55M +106,056 +1,058%
Handelsbanken Fonder
34
Handelsbanken Fonder
Sweden
$7.81M +$712K +10,000 +10%
Citadel Advisors
35
Citadel Advisors
Florida
$7.37M +$7.37M +103,505 New
Adage Capital Partners
36
Adage Capital Partners
Massachusetts
$7.12M -$7.12M -100,000 -50%
PA
37
Perceptive Advisors
New York
$7.12M – – –
HIM
38
Hillsdale Investment Management
Ontario, Canada
$6.66M +$2.97M +41,700 +81%
UBS Group
39
UBS Group
Switzerland
$5.52M +$5.4M +75,855 +4,564%
Goldman Sachs
40
Goldman Sachs
New York
$5.41M +$188K +2,645 +4%
Marshall Wace
41
Marshall Wace
United Kingdom
$4.91M +$4.91M +68,892 New
Swiss National Bank
42
Swiss National Bank
Switzerland
$4.87M +$477K +6,700 +11%
EI
43
EAM Investors
California
$4.61M -$2.84M -39,900 -38%
Morgan Stanley
44
Morgan Stanley
New York
$4.43M +$1.23M +17,240 +38%
PIM
45
Platinum Investment Management
Australia
$4.31M -$2.95M -41,393 -41%
DA
46
DCF Advisers
Connecticut
$4.27M -$125K -1,750 -3%
Wells Fargo
47
Wells Fargo
California
$4.01M +$2.94M +41,215 +273%
AA
48
ALPS Advisors
Colorado
$3.93M -$190K -2,674 -5%
Citigroup
49
Citigroup
New York
$3.8M -$218K -3,067 -5%
EGI
50
EAM Global Investors
California
$3.54M -$1.46M -20,535 -29%
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