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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.

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 Market Value Shares Shares
Change 		Shares
Change %
EC
1
EcoR1 Capital
California
$315M 11,584,280 – –
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$162M 5,965,788 -147,954 -2%
BlackRock
3
BlackRock
New York
$94.2M 3,471,300 -390,286 -10%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$79.4M 2,925,398 +249,784 +9%
State Street
5
State Street
Massachusetts
$61M 2,246,073 -121,510 -5%
FLAM
6
First Light Asset Management
Minnesota
$52.6M 1,938,183 +99,635 +5%
PAI
7
Palo Alto Investors
California
$45.7M 1,681,477 – –
Dimensional Fund Advisors
8
Dimensional Fund Advisors
Texas
$42.5M 1,566,753 +61,597 +4%
Vanguard Group
9
Vanguard Group
Pennsylvania
$22.5M 829,076 -46,224 -5%
RG
10
Redmile Group
California
$20M 736,175 – –
Nuveen Asset Management
11
Nuveen Asset Management
Illinois
$19.6M 723,172 -817 -0.1%
Renaissance Technologies
12
Renaissance Technologies
New York
$18.6M 686,000 +291,800 +74%
RSCM
13
Rock Springs Capital Management
Maryland
$18.4M 678,462 +14,932 +2%
Geode Capital Management
14
Geode Capital Management
Massachusetts
$17.2M 631,680 -20,295 -3%
PM
15
Prosight Management
Texas
$14.9M 550,000 -16,538 -3%
FC
16
Finepoint Capital
Massachusetts
$12.4M 457,500 +457,500 New
Two Sigma Advisers
17
Two Sigma Advisers
New York
$12.2M 447,700 +31,500 +8%
Morgan Stanley
18
Morgan Stanley
New York
$9.57M 352,582 +3,061 +0.9%
Northern Trust
19
Northern Trust
Illinois
$9.56M 352,221 -12,571 -3%
PHS
20
PFM Health Sciences
California
$9.37M 345,114 +345,114 New
MRCP
21
Maple Rock Capital Partners
Ontario, Canada
$9.07M 334,000 – –
BC
22
Boxer Capital
California
$8.15M 300,000 – –
JPMorgan Chase & Co
23
JPMorgan Chase & Co
New York
$7.78M 286,579 +34,439 +14%
Charles Schwab
24
Charles Schwab
California
$7.53M 277,475 -6,927 -2%
Goldman Sachs
25
Goldman Sachs
New York
$7.34M 270,184 +11,621 +4%
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