PRTA icon

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 %
AQR Capital Management
101
AQR Capital Management
Connecticut
$893K -$37.5K -777 -4%
TC
102
TwinBeech Capital
New York
$887K +$887K +18,376 New
ACM
103
Aquatic Capital Management
Illinois
$777K +$777K +16,100 New
GC
104
Guggenheim Capital
Illinois
$740K +$7.87K +163 +1%
IBT
105
International Biotechnology Trust
United Kingdom
$723K +$723K +15,000 New
DekaBank Deutsche Girozentrale
106
DekaBank Deutsche Girozentrale
Germany
$682K – – –
MAM
107
Martingale Asset Management
Massachusetts
$599K +$52.9K +1,097 +10%
State Board of Administration of Florida Retirement System
108
State Board of Administration of Florida Retirement System
Florida
$575K +$7.24K +150 +1%
HF
109
HRT Financial
New York
$552K +$552K +11,459 New
EGM
110
Engineers Gate Manager
New York
$549K +$371K +7,683 +208%
ASRS
111
Arizona State Retirement System
Arizona
$544K +$8.88K +184 +2%
Teacher Retirement System of Texas
112
Teacher Retirement System of Texas
Texas
$542K +$25.5K +529 +5%
TRSOTSOK
113
Teachers Retirement System of the State of Kentucky
Kentucky
$538K – – –
XT
114
XTX Topco
Cayman Islands
$536K +$536K +11,112 New
Ameriprise
115
Ameriprise
Minnesota
$534K -$41.2K -853 -7%
FRM
116
Fox Run Management
Connecticut
$464K +$464K +9,617 New
BCM
117
Bayesian Capital Management
New York
$449K +$449K +9,299 New
Walleye Trading
118
Walleye Trading
New York
$447K +$189K +3,910 +73%
HS
119
HighVista Strategies
Massachusetts
$444K +$135K +2,789 +44%
CC
120
Corton Capital
Ontario, Canada
$439K +$75.3K +1,560 +21%
ProShare Advisors
121
ProShare Advisors
Maryland
$429K +$3.96K +82 +0.9%
Victory Capital Management
122
Victory Capital Management
Texas
$424K -$846K -17,526 -67%
Royal Bank of Canada
123
Royal Bank of Canada
Ontario, Canada
$409K +$14K +290 +4%
RJA
124
Raymond James & Associates
Florida
$394K +$195K +4,050 +98%
Capstone Investment Advisors
125
Capstone Investment Advisors
New York
$393K +$393K +8,135 New
3 4
5
6 7