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Prothena Corp
PRTA

Overview Fund Activity

146 hedge funds and large institutions have $1B invested in Prothena Corp in 2021 Q1 according to their latest regulatory filings, with 22 funds opening new positions, 39 increasing their positions, 49 reducing their positions, and 13 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
146
Holders Change
+6
Holders Change %
+4.29%
% of All Funds
2.57%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.05%
New
22
Increased
39
Reduced
49
Closed
13
Calls
$16.5M
Puts
$5.57M
Net Calls
+$10.9M
Net Calls Change
+$8.89M

Top Buyers

1
T. Rowe Price Associates
1
T. Rowe Price Associates
Maryland
$83.2M
2
RG
2
Redmile Group
California
$46.7M
3
Fidelity Investments
3
Fidelity Investments
Massachusetts
$78.3M
4
EC
4
EcoR1 Capital
California
$277M
5
FLAM
5
First Light Asset Management
Minnesota
$73.7M

Top Sellers

1
O
1
OrbiMed
New York
$0
2
IC
2
Ikarian Capital
Texas
$11M
3
Millennium Management
3
Millennium Management
New York
$577K
4
PM
4
Prosight Management
Texas
$15.1M
5
GPP
5
Great Point Partners
Connecticut
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
KFS
126
Kelly Financial Services
Massachusetts
$4.57K +$4.57K +182 New
SN
127
Sittner & Nelson
Oregon
$4K – – –
HIA
128
Harbor Investment Advisory
Maryland
$3K – – –
Osaic Holdings
129
Osaic Holdings
Arizona
$3K – – –
Carson Wealth (CWM LLC)
130
Carson Wealth (CWM LLC)
Nebraska
$2K – – –
Rockefeller Capital Management
131
Rockefeller Capital Management
New York
$2K – – –
Daiwa Securities Group
132
Daiwa Securities Group
Japan
$2K – – –
HNB
133
Huntington National Bank
Ohio
$2K – – –
Bessemer Group
134
Bessemer Group
New Jersey
$2K – – –
SPIA
135
Steward Partners Investment Advisory
New York
$628 – – –
AIG
136
American International Group
New York
$450 +$1 +48 +0.3%
APA
137
American Portfolios Advisors
New York
$50 – – –
Nisa Investment Advisors
138
Nisa Investment Advisors
Missouri
$13 +$13 +500 New
O
139
OrbiMed
New York
– -$21.6M -1,797,458 Closed
GPP
140
Great Point Partners
Connecticut
– -$11.7M -977,647 Closed
ECM
141
Endurant Capital Management
California
– -$1.82M -151,820 Closed
Adage Capital Partners
142
Adage Capital Partners
Massachusetts
– -$1.5M -125,000 Closed
Man Group
143
Man Group
United Kingdom
– -$829K -69,023 Closed
LCM
144
Lonestar Capital Management
California
– -$564K -46,965 Closed
HF
145
HRT Financial
New York
– -$202K -16,845 Closed
ECM
146
ExodusPoint Capital Management
New York
– -$188K -15,692 Closed
GCP
147
GSA Capital Partners
United Kingdom
– -$181K -15,095 Closed
JF
148
Jump Financial
Illinois
– -$149K -12,400 Closed
PWPS
149
Pinnacle Wealth Planning Services
Ohio
– -$16K -1,309 Closed
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