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Prothena Corp
PRTA

Overview Fund Activity

186 hedge funds and large institutions have $2.56B invested in Prothena Corp in 2023 Q3 according to their latest regulatory filings, with 25 funds opening new positions, 73 increasing their positions, 51 reducing their positions, and 32 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
186
Holders Change
-10
Holders Change %
-5.1%
% of All Funds
2.97%
Holding in Top 10
5
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-16.67%
% of All Funds
0.08%
New
25
Increased
73
Reduced
51
Closed
32
Calls
$9.61M
Puts
$18.1M
Net Calls
-$8.45M
Net Calls Change
+$2.75M

Top Buyers

1
BC
Boxer Capital
California
+$15.7M
2
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
+$12.8M
3
State Street
State Street
Massachusetts
+$11.4M
4
Millennium Management
Millennium Management
New York
+$11.2M
5
Janus Henderson Group
Janus Henderson Group
United Kingdom
+$7.43M

Top Sellers

1
Man Group
Man Group
United Kingdom
-$11.6M
2
APM
Avidity Partners Management
Texas
-$7.37M
3
RSCM
Rock Springs Capital Management
Maryland
-$6.71M
4
ACM
Atika Capital Management
New York
-$6.66M
5
EGI
EAM Global Investors
California
-$4.84M
Name Holding Trade Value Shares
Change 		Shares
Change %
BBPWM
176
Blue Bell Private Wealth Management
Pennsylvania
$579 – – –
LWA
177
Lowe Wealth Advisors
Maryland
$483 – – –
Federated Hermes
178
Federated Hermes
Pennsylvania
$434 -$1.49M -30,847 -100%
HI
179
Harbour Investments
Wisconsin
$241 – – –
TWP
180
TFO Wealth Partners
Ohio
$205 +$205 +3 New
HNB
181
Huntington National Bank
Ohio
$193 – – –
JWA
182
JFS Wealth Advisors
Pennsylvania
$193 – – –
RFA
183
Register Financial Advisors
Georgia
$193 +$193 +4 New
WTC
184
WhitTier Trust Company
Nevada
$144 – – –
GI
185
Gradient Investments
Minnesota
$48 – – –
ACM
186
Atika Capital Management
New York
– -$6.66M -97,500 Closed
EGI
187
EAM Global Investors
California
– -$4.84M -70,872 Closed
Bank of Montreal
188
Bank of Montreal
Ontario, Canada
– -$4.61M -66,767 Closed
IHAM
189
Integral Health Asset Management
New York
– -$3.55M -52,000 Closed
EI
190
EAM Investors
California
– -$3.39M -49,656 Closed
EF
191
Empowered Funds
Pennsylvania
– -$3M -43,937 Closed
WP
192
Woodline Partners
California
– -$2.84M -41,633 Closed
Macquarie Group
193
Macquarie Group
Australia
– -$2.35M -34,369 Closed
Prudential Financial
194
Prudential Financial
New Jersey
– -$1.56M -22,911 Closed
FAM
195
Fred Alger Management
New York
– -$1.51M -22,064 Closed
AR
196
Advisory Research
Illinois
– -$1.5M -22,039 Closed
Franklin Resources
197
Franklin Resources
California
– -$1.42M -20,739 Closed
E
198
Ergoteles
New York
– -$906K -13,276 Closed
HIS
199
Harvest Investment Services
Illinois
– -$804K -11,772 Closed
Marshall Wace
200
Marshall Wace
United Kingdom
– -$742K -10,869 Closed
5 6 7
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