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Prothena Corp
PRTA

Overview Fund Activity

186 hedge funds and large institutions have $2.56B invested in Prothena Corp in 2023 Q3 according to their latest regulatory filings, with 25 funds opening new positions, 73 increasing their positions, 51 reducing their positions, and 32 closing their positions.

Holders
186
Holders Change
-10
Holders Change %
-5.1%
% of All Funds
2.97%
Holding in Top 10
5
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-16.67%
% of All Funds
0.08%
New
25
Increased
73
Reduced
51
Closed
32
Calls
$9.61M
Puts
$18.1M
Net Calls
-$8.45M
Net Calls Change
+$2.75M

Top Buyers

1
BC
1
Boxer Capital
California
$30.2M
2
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$184M
3
State Street
3
State Street
Massachusetts
$102M
4
Millennium Management
4
Millennium Management
New York
$12.8M
5
Janus Henderson Group
5
Janus Henderson Group
United Kingdom
$88.1M

Top Sellers

1
Man Group
1
Man Group
United Kingdom
$230K
2
APM
2
Avidity Partners Management
Texas
$18.4M
3
RSCM
3
Rock Springs Capital Management
Maryland
$29.6M
4
ACM
4
Atika Capital Management
New York
$0
5
EGI
5
EAM Global Investors
California
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
California State Teachers Retirement System (CalSTRS)
76
California State Teachers Retirement System (CalSTRS)
California
$2.13M -$211K -4,372 -9%
Susquehanna International Group
77
Susquehanna International Group
Pennsylvania
$2.01M +$920K +19,075 +85%
PIM
78
Platinum Investment Management
Australia
$2M – – –
AA
79
ALPS Advisors
Colorado
$1.91M +$36.1K +748 +2%
Legal & General Group
80
Legal & General Group
United Kingdom
$1.86M +$36.4K +754 +2%
AIM
81
Aigen Investment Management
New York
$1.68M +$1.68M +34,890 New
Hudson Bay Capital Management
82
Hudson Bay Capital Management
Connecticut
$1.57M +$1.57M +32,500 New
Squarepoint
83
Squarepoint
New York
$1.56M +$1.56M +32,339 New
HIM
84
Hillsdale Investment Management
Ontario, Canada
$1.51M -$294K -6,100 -16%
New York State Common Retirement Fund
85
New York State Common Retirement Fund
New York
$1.49M -$9.74K -202 -0.6%
Invesco
86
Invesco
Georgia
$1.48M -$1.6M -33,228 -52%
First Trust Advisors
87
First Trust Advisors
Illinois
$1.48M +$1.48M +30,709 New
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
88
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
$1.47M +$1.47M +30,500 New
TIM
89
Thornburg Investment Management
New Mexico
$1.36M -$35.7K -740 -3%
AG
90
Algert Global
California
$1.35M +$1.35M +28,000 New
PA
91
Profund Advisors
Maryland
$1.29M +$221K +4,585 +21%
SCM
92
Silverarc Capital Management
Massachusetts
$1.28M -$1.11M -23,092 -46%
Mirae Asset Global Investments
93
Mirae Asset Global Investments
South Korea
$1.24M +$155K +3,222 +14%
Principal Financial Group
94
Principal Financial Group
Iowa
$1.23M -$2.35M -48,741 -66%
Edgewood Management
95
Edgewood Management
Connecticut
$1.16M – – –
MAP
96
Moody Aldrich Partners
Massachusetts
$1.15M -$661K -13,695 -36%
Deutsche Bank
97
Deutsche Bank
Germany
$1.09M +$138K +2,857 +14%
MIM
98
MetLife Investment Management
New Jersey
$1.05M – – –
AIG
99
American International Group
New York
$998K +$35.5K +736 +4%
Rockefeller Capital Management
100
Rockefeller Capital Management
New York
$931K +$272K +5,638 +41%
2 3
4
5 6