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Prothena Corp
PRTA

Overview Fund Activity

201 hedge funds and large institutions have $2.9B invested in Prothena Corp in 2022 Q4 according to their latest regulatory filings, with 44 funds opening new positions, 77 increasing their positions, 51 reducing their positions, and 23 closing their positions.

Holders
201
Holders Change
+18
Holders Change %
+9.84%
% of All Funds
3.24%
Holding in Top 10
8
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-11.11%
% of All Funds
0.13%
New
44
Increased
77
Reduced
51
Closed
23
Calls
$25.7M
Puts
$9.23M
Net Calls
+$16.5M
Net Calls Change
-$11.2M

Top Buyers

1
Wellington Management Group
1
Wellington Management Group
Massachusetts
$106M
2
Janus Henderson Group
2
Janus Henderson Group
United Kingdom
$86.3M
3
APM
3
Avidity Partners Management
Texas
$178M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$238M
5
BlackRock
5
BlackRock
New York
$210M

Top Sellers

1
RG
1
Redmile Group
California
$0
2
Federated Hermes
2
Federated Hermes
Pennsylvania
$62.8K
3
Citadel Advisors
3
Citadel Advisors
Florida
$15K
4
SC
4
Sessa Capital
New York
$0
5
Renaissance Technologies
5
Renaissance Technologies
New York
$28.6M
Name Holding Trade Value Shares
Change 		Shares
Change %
SC
201
Sessa Capital
New York
– -$11.3M -187,000 Closed
Marshall Wace
202
Marshall Wace
United Kingdom
– -$6.54M -107,803 Closed
GC
203
Guggenheim Capital
Illinois
– -$4.6M -75,795 Closed
Walleye Trading
204
Walleye Trading
New York
– -$2.93M -48,295 Closed
Simplex Trading
205
Simplex Trading
Illinois
– -$1.43M -23,666 Closed
AC
206
Apogem Capital
New York
– -$1.37M -22,566 Closed
HSA
207
Hussman Strategic Advisors
Maryland
– -$946K -15,600 Closed
NC
208
NinePointTwo Capital
California
– -$927K -15,290 Closed
Wolverine Trading
209
Wolverine Trading
Illinois
– -$880K -14,805 Closed
VRS
210
Virginia Retirement Systems
Virginia
– -$849K -14,000 Closed
HF
211
HRT Financial
New York
– -$749K -12,363 Closed
FRM
212
Fox Run Management
Connecticut
– -$432K -7,126 Closed
VF
213
Virtu Financial
New York
– -$395K -6,523 Closed
QT
214
Quantamental Technologies
New York
– -$310K -5,106 Closed
HPCM
215
Hunter Perkins Capital Management
Illinois
– -$249K -4,101 Closed
WG
216
Winton Group
United Kingdom
– -$245K -4,039 Closed
OWP
217
Old Well Partners
North Carolina
– -$238K -3,924 Closed
VIA
218
Vident Investment Advisory
Georgia
– -$237K -3,916 Closed
Group One Trading
219
Group One Trading
Illinois
– -$231K -3,813 Closed
Lazard Asset Management
220
Lazard Asset Management
New York
– -$105K -1,733 Closed
Bessemer Group
221
Bessemer Group
New Jersey
– -$4K -63 Closed
CA
222
Crewe Advisors
Utah
– -$3K -52 Closed
5 6 7 8
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