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Prothena Corp
PRTA

Overview Fund Activity

201 hedge funds and large institutions have $2.9B invested in Prothena Corp in 2022 Q4 according to their latest regulatory filings, with 44 funds opening new positions, 77 increasing their positions, 51 reducing their positions, and 23 closing their positions.

Holders
201
Holders Change
+18
Holders Change %
+9.84%
% of All Funds
3.24%
Holding in Top 10
8
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-11.11%
% of All Funds
0.13%
New
44
Increased
77
Reduced
51
Closed
23
Calls
$25.7M
Puts
$9.23M
Net Calls
+$16.5M
Net Calls Change
-$11.2M

Top Buyers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$106M
2
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$86.3M
3
APM
3
Avidity Partners Management
Texas
$178M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$238M
5
BlackRock
5
BlackRock
New York
$210M

Top Sellers

1
RG
1
Redmile Group
California
$0
2
Federated Hermes
2
Federated Hermes
Pennsylvania
$62.8K
3
Citadel Advisors
3
Citadel Advisors
Florida
$15K
4
SC
4
Sessa Capital
New York
$0
5
Renaissance Technologies
5
Renaissance Technologies
New York
$28.6M
Name Market Value Shares Shares
Change 		Shares
Change %
HIM
51
Hillsdale Investment Management
Ontario, Canada
$4.67M 77,500 +77,500 New
EGI
52
EAM Global Investors
California
$4.62M 76,653 – –
PBA
53
Paradigm Biocapital Advisors
New York
$4.52M 75,000 -160,826 -68%
DA
54
DCF Advisers
Connecticut
$4.46M 74,100 +6,100 +9%
SCM
55
Silverarc Capital Management
Massachusetts
$4.32M 71,706 -38,294 -35%
PI
56
Putnam Investments
Massachusetts
$3.94M 65,394 +50,638 +343%
PVI
57
Pura Vida Investments
New York
$3.86M 64,000 +64,000 New
Citigroup
58
Citigroup
New York
$3.82M 63,400 -34,744 -35%
First Trust Advisors
59
First Trust Advisors
Illinois
$3.76M 62,396 +23,588 +61%
Connor, Clark & Lunn Investment Management (CC&L)
60
Connor, Clark & Lunn Investment Management (CC&L)
British Columbia, Canada
$3.64M 60,432 +32,876 +119%
Norges Bank
61
Norges Bank
Norway
$3.57M 59,259 +23,859 +67%
Principal Financial Group
62
Principal Financial Group
Iowa
$3.37M 56,007 +36,992 +195%
Manulife (Manufacturers Life Insurance)
63
Manulife (Manufacturers Life Insurance)
Ontario, Canada
$3.29M 55,062 +2,031 +4%
RC
64
RBF Capital
California
$3.28M 54,362 – –
EI
65
EAM Investors
California
$3.21M 53,346 -291 -0.5%
Handelsbanken Fonder
66
Handelsbanken Fonder
Sweden
$3.13M 52,000 -33,700 -39%
RhumbLine Advisers
67
RhumbLine Advisers
Massachusetts
$3M 49,718 +2,827 +6%
Jennison Associates
68
Jennison Associates
New York
$2.97M 49,241 +49,241 New
AllianceBernstein
69
AllianceBernstein
Tennessee
$2.7M 44,866 -500 -1%
California State Teachers Retirement System (CalSTRS)
70
California State Teachers Retirement System (CalSTRS)
California
$2.6M 43,220 +1,017 +2%
Invesco
71
Invesco
Georgia
$2.55M 42,304 +24,822 +142%
PIM
72
Platinum Investment Management
Australia
$2.5M 41,508 -7,406 -15%
CSS
73
Cubist Systematic Strategies
Connecticut
$2.45M 40,719 +22,999 +130%
MAP
74
Moody Aldrich Partners
Massachusetts
$2.36M 39,237 +39,237 New
CS
75
Credit Suisse
Switzerland
$2.34M 38,887 +7,609 +24%
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