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Prothena Corp
PRTA

Overview Fund Activity

196 hedge funds and large institutions have $2.12B invested in Prothena Corp in 2021 Q4 according to their latest regulatory filings, with 41 funds opening new positions, 72 increasing their positions, 37 reducing their positions, and 36 closing their positions.

Holders
196
Holders Change
+4
Holders Change %
+2.08%
% of All Funds
3.03%
Holding in Top 10
4
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-20%
% of All Funds
0.06%
New
41
Increased
72
Reduced
37
Closed
36
Calls
$12.3M
Puts
$4.86M
Net Calls
+$7.4M
Net Calls Change
+$670K

Top Buyers

1
State Street
1
State Street
Massachusetts
$97.5M
2
JPMorgan Chase & Co
2
JPMorgan Chase & Co
New York
$10.6M
3
FLAM
3
First Light Asset Management
Minnesota
$80.2M
4
ECM
4
ExodusPoint Capital Management
New York
$8.05M
5
Marshall Wace
5
Marshall Wace
United Kingdom
$10.6M

Top Sellers

1
ACM
1
Atika Capital Management
New York
$0
2
Invesco
2
Invesco
Georgia
$7.8M
3
Adage Capital Partners
3
Adage Capital Partners
Massachusetts
$0
4
RG
4
Redmile Group
California
$37.8M
5
T. Rowe Price Associates
5
T. Rowe Price Associates
Maryland
$294M
Name Market Value Shares Shares
Change 		Shares
Change %
EC
1
EcoR1 Capital
California
$557M 11,284,280 – –
T. Rowe Price Associates
2
T. Rowe Price Associates
Maryland
$294M 5,948,861 -113,768 -2%
BlackRock
3
BlackRock
New York
$191M 3,872,300 +102,596 +3%
Fidelity Investments
4
Fidelity Investments
Massachusetts
$131M 2,641,741 -7,690 -0.3%
State Street
5
State Street
Massachusetts
$97.5M 1,972,950 +567,706 +40%
PAI
6
Palo Alto Investors
California
$83.3M 1,685,282 – –
FLAM
7
First Light Asset Management
Minnesota
$80.2M 1,622,941 +173,447 +12%
Dimensional Fund Advisors
8
Dimensional Fund Advisors
Texas
$74M 1,498,537 -81,111 -5%
Vanguard Group
9
Vanguard Group
Pennsylvania
$44.5M 901,204 +32,726 +4%
RG
10
Redmile Group
California
$37.8M 765,675 -135,816 -15%
RSCM
11
Rock Springs Capital Management
Maryland
$32M 647,730 -62,700 -9%
Geode Capital Management
12
Geode Capital Management
Massachusetts
$30.8M 623,574 +3,401 +0.5%
Nuveen Asset Management
13
Nuveen Asset Management
Illinois
$24.6M 498,164 +18,769 +4%
Northern Trust
14
Northern Trust
Illinois
$22M 444,819 +3,834 +0.9%
PM
15
Prosight Management
Texas
$21.8M 441,000 +117,700 +36%
Two Sigma Advisers
16
Two Sigma Advisers
New York
$20.2M 408,400 -65,300 -14%
Two Sigma Investments
17
Two Sigma Investments
New York
$14.9M 301,454 -19,712 -6%
BC
18
Boxer Capital
California
$14.8M 300,000 – –
Renaissance Technologies
19
Renaissance Technologies
New York
$13.2M 266,800 +9,600 +4%
UBS AM
20
UBS AM
Illinois
$12.8M 259,974 -19,849 -7%
Charles Schwab
21
Charles Schwab
California
$12.6M 255,614 +13,899 +6%
Millennium Management
22
Millennium Management
New York
$10.9M 219,891 +68,222 +45%
JPMorgan Chase & Co
23
JPMorgan Chase & Co
New York
$10.6M 215,342 +201,056 +1,407%
Marshall Wace
24
Marshall Wace
United Kingdom
$10.6M 214,691 +145,799 +212%
Goldman Sachs
25
Goldman Sachs
New York
$10.6M 214,116 +138,207 +182%
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