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Prothena Corp
PRTA

Overview Fund Activity

169 hedge funds and large institutions have $741M invested in Prothena Corp in 2024 Q4 according to their latest regulatory filings, with 34 funds opening new positions, 63 increasing their positions, 39 reducing their positions, and 27 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
169
Holders Change
+7
Holders Change %
+4.32%
% of All Funds
2.25%
Holding in Top 10
3
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.04%
New
34
Increased
63
Reduced
39
Closed
27
Calls
$8.78M
Puts
$4.31M
Net Calls
+$4.48M
Net Calls Change
+$3.53M

Top Buyers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$71.1M
2
AC
2
Armistice Capital
New York
$31M
3
Federated Hermes
3
Federated Hermes
Pennsylvania
$10.3M
4
UBS Group
4
UBS Group
Switzerland
$5.14M
5
FC
5
Finepoint Capital
Massachusetts
$9.1M

Top Sellers

1
GIM
1
Granahan Investment Management
Massachusetts
$0
2
Citadel Advisors
2
Citadel Advisors
Florida
$575K
3
DTC
3
Deep Track Capital
Connecticut
$0
4
UBS AM
4
UBS AM
Illinois
$5.28M
5
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$51M
Name Holding Trade Value Shares
Change 		Shares
Change %
Lazard Asset Management
176
Lazard Asset Management
New York
– -$705K -42,173 Closed
HF
177
HRT Financial
New York
– -$699K -41,809 Closed
Primecap Management
178
Primecap Management
California
– -$594K -35,500 Closed
JF
179
Jump Financial
Illinois
– -$542K -32,407 Closed
GCP
180
GSA Capital Partners
United Kingdom
– -$484K -28,941 Closed
SPA
181
Sherbrooke Park Advisers
New York
– -$461K -27,582 Closed
State of Wisconsin Investment Board
182
State of Wisconsin Investment Board
Wisconsin
– -$458K -27,401 Closed
DTL
183
Dynamic Technology Lab
Singapore
– -$432K -25,764 Closed
BHCM
184
Brevan Howard Capital Management
Jersey
– -$344K -20,573 Closed
BCI
185
Brinker Capital Investments
Pennsylvania
– -$293K -17,531 Closed
OPS
186
Orion Portfolio Solutions
Nebraska
– -$293K -17,531 Closed
TRSOTSOK
187
Teachers Retirement System of the State of Kentucky
Kentucky
– -$235K -14,039 Closed
Qube Research & Technologies (QRT)
188
Qube Research & Technologies (QRT)
United Kingdom
– -$223K -13,320 Closed
SFM
189
Systematic Financial Management
New Jersey
– -$136K -8,125 Closed
CFM
190
Catalyst Funds Management
Australia
– -$112K -6,700 Closed
Simplex Trading
191
Simplex Trading
Illinois
– -$99K -5,977 Closed
BAM
192
Byrne Asset Management
New Jersey
– -$12.7K -760 Closed
SAM
193
Smartleaf Asset Management
Massachusetts
– -$5.39K -269 Closed
CPG
194
Cornerstone Planning Group
New Jersey
– -$2.01K -110 Closed
Allspring Global Investments
195
Allspring Global Investments
North Carolina
– -$1.22K -73 Closed
Bessemer Group
196
Bessemer Group
New Jersey
– -$1K -55 Closed
4 5 6 7
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