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Prothena Corp
PRTA

Overview Fund Activity

166 hedge funds and large institutions have $1.21B invested in Prothena Corp in 2022 Q2 according to their latest regulatory filings, with 16 funds opening new positions, 44 increasing their positions, 54 reducing their positions, and 21 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
166
Holders Change
-8
Holders Change %
-4.6%
% of All Funds
2.81%
Holding in Top 10
5
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.08%
New
16
Increased
44
Reduced
54
Closed
21
Calls
$15.5M
Puts
$1.62M
Net Calls
+$13.9M
Net Calls Change
+$807K

Top Buyers

1
FC
1
Finepoint Capital
Massachusetts
$12.4M
2
PHS
2
PFM Health Sciences
California
$9.37M
3
Renaissance Technologies
3
Renaissance Technologies
New York
$18.6M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$79.4M
5
Janus Henderson Group
5
Janus Henderson Group
United Kingdom
$4.97M

Top Sellers

1
BlackRock
1
BlackRock
New York
$94.2M
2
PBA
2
Paradigm Biocapital Advisors
New York
$0
3
T. Rowe Price Associates
3
T. Rowe Price Associates
Maryland
$162M
4
State Street
4
State Street
Massachusetts
$61M
5
Federated Hermes
5
Federated Hermes
Pennsylvania
$122K
Name Holding Trade Value Shares
Change 		Shares
Change %
Bank of Montreal
151
Bank of Montreal
Ontario, Canada
$692 -$630 -22,653 -48%
APA
152
American Portfolios Advisors
New York
$54 – – –
PBA
153
Paradigm Biocapital Advisors
New York
– -$9.8M -267,946 Closed
PA
154
Perceptive Advisors
New York
– -$2.38M -65,144 Closed
GCP
155
GSA Capital Partners
United Kingdom
– -$1.14M -31,142 Closed
GAM
156
Gotham Asset Management
New York
– -$943K -25,784 Closed
EGM
157
Engineers Gate Manager
New York
– -$804K -21,992 Closed
TC
158
TwinBeech Capital
New York
– -$672K -18,374 Closed
AG
159
Algert Global
California
– -$617K -16,875 Closed
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
160
Healthcare of Ontario Pension Plan (HOOPP) Trust Fund
Ontario, Canada
– -$614K -16,800 Closed
ACM
161
AlphaCrest Capital Management
New York
– -$561K -15,348 Closed
Massachusetts Financial Services
162
Massachusetts Financial Services
Massachusetts
– -$496K -13,556 Closed
HS
163
HighVista Strategies
Massachusetts
– -$474K -12,953 Closed
Franklin Resources
164
Franklin Resources
California
– -$338K -9,236 Closed
AQR Capital Management
165
AQR Capital Management
Connecticut
– -$306K -8,363 Closed
HighTower Advisors
166
HighTower Advisors
Illinois
– -$286K -7,820 Closed
Teacher Retirement System of Texas
167
Teacher Retirement System of Texas
Texas
– -$244K -6,685 Closed
KWMG
168
King Wealth Management Group
Florida
– -$219K -6,000 Closed
ACM
169
Aquatic Capital Management
Illinois
– -$73K -2,000 Closed
Group One Trading
170
Group One Trading
Illinois
– -$38K -1,029 Closed
LAS
171
Lloyd Advisory Services
Georgia
– -$2K -48 Closed
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