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Prothena Corp
PRTA

Overview Fund Activity

168 hedge funds and large institutions have $1.33B invested in Prothena Corp in 2024 Q1 according to their latest regulatory filings, with 24 funds opening new positions, 57 increasing their positions, 62 reducing their positions, and 41 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
168
Holders Change
-19
Holders Change %
-10.16%
% of All Funds
2.44%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
24
Increased
57
Reduced
62
Closed
41
Calls
$4.77M
Puts
$4.78M
Net Calls
-$6K
Net Calls Change
-$19.3M

Top Buyers

1
Wellington Management Group
Wellington Management Group
Massachusetts
$92.9M
2
AC
Armistice Capital
New York
$27.1M
3
State Street
State Street
Massachusetts
$86.1M
4
AG
Artal Group
Luxembourg
$24.8M
5
Millennium Management
Millennium Management
New York
$7.98M

Top Sellers

1
Janus Henderson Group
Janus Henderson Group
United Kingdom
$32.4M
2
EAM
Eventide Asset Management
Massachusetts
$0
3
FLAM
First Light Asset Management
Minnesota
$11M
4
MRCP
Maple Rock Capital Partners
Ontario, Canada
$0
5
Morgan Stanley
Morgan Stanley
New York
$16.2M
Name Holding Trade Value Shares
Change 		Shares
Change %
SAM
176
Sectoral Asset Management
Quebec, Canada
– -$1.7M -46,777 Closed
CM
177
Caption Management
Oklahoma
– -$1.67M -45,892 Closed
EGM
178
Engineers Gate Manager
New York
– -$1.33M -36,523 Closed
EAM
179
Exome Asset Management
New York
– -$1.32M -36,384 Closed
GCP
180
GSA Capital Partners
United Kingdom
– -$1.27M -34,850 Closed
Tudor Investment Corp
181
Tudor Investment Corp
Connecticut
– -$1.04M -28,561 Closed
DTL
182
Dynamic Technology Lab
Singapore
– -$962K -26,476 Closed
TIM
183
Thornburg Investment Management
New Mexico
– -$930K -25,591 Closed
CM
184
Capula Management
Cayman Islands
– -$883K -24,310 Closed
HT
185
HAP Trading
New York
– -$825K -22,701 Closed
SPS
186
Susquehanna Portfolio Strategies
Pennsylvania
– -$733K -20,158 Closed
Hudson Bay Capital Management
187
Hudson Bay Capital Management
Connecticut
– -$727K -20,000 Closed
AQR Capital Management
188
AQR Capital Management
Connecticut
– -$501K -13,781 Closed
Ameriprise
189
Ameriprise
Minnesota
– -$500K -13,760 Closed
Rockefeller Capital Management
190
Rockefeller Capital Management
New York
– -$458K -12,614 Closed
ET
191
Entropy Technologies
New York
– -$328K -9,031 Closed
PCM
192
Prelude Capital Management
New York
– -$313K -8,600 Closed
HP
193
HealthInvest Partners
Sweden
– -$303K -8,342 Closed
RJA
194
Raymond James & Associates
Florida
– -$297K -8,167 Closed
XT
195
XTX Topco
Cayman Islands
– -$264K -7,264 Closed
FRM
196
Fox Run Management
Connecticut
– -$233K -6,403 Closed
OC
197
Oppenheimer & Co
New York
– -$230K -6,326 Closed
SCA
198
Snowden Capital Advisors
New York
– -$218K -6,000 Closed
Cambridge Investment Research Advisors
199
Cambridge Investment Research Advisors
Iowa
– -$217K -5,985 Closed
HF
200
HRT Financial
New York
– -$214K -5,904 Closed
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