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Prothena Corp
PRTA

Overview Fund Activity

140 hedge funds and large institutions have $355M invested in Prothena Corp in 2020 Q3 according to their latest regulatory filings, with 19 funds opening new positions, 32 increasing their positions, 49 reducing their positions, and 18 closing their positions.

Holders
140
Holders Change
+1
Holders Change %
+0.72%
% of All Funds
2.83%
Holding in Top 10
1
Holding in Top 10 Change
-1
Holding in Top 10 Change %
-50%
% of All Funds
0.02%
New
19
Increased
32
Reduced
49
Closed
18
Calls
$1.6M
Puts
$2.05M
Net Calls
-$449K
Net Calls Change
+$1.15M

Top Buyers

1
BlackRock
1
BlackRock
New York
$37.2M
2
PAI
2
Palo Alto Investors
California
$13.3M
3
PM
3
Prosight Management
Texas
$5.45M
4
Adage Capital Partners
4
Adage Capital Partners
Massachusetts
$2M
5
Goldman Sachs
5
Goldman Sachs
New York
$5.14M

Top Sellers

1
SCM
1
Soleus Capital Management
Connecticut
$0
2
GPP
2
Great Point Partners
Connecticut
$15.5M
3
WP
3
Woodline Partners
California
$1.77M
4
Wellington Management Group
4
Wellington Management Group
Massachusetts
$6.06M
5
Point72 Asset Management
5
Point72 Asset Management
Connecticut
$0
Name Market Value Shares Shares
Change 		Shares
Change %
EC
1
EcoR1 Capital
California
$94.2M 9,426,640 – –
BlackRock
2
BlackRock
New York
$37.2M 3,728,276 +691,989 +23%
O
3
OrbiMed
New York
$35.4M 3,544,475 – –
Fidelity Investments
4
Fidelity Investments
Massachusetts
$20M 1,998,870 +41,121 +2%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$17.6M 1,765,000 -36,831 -2%
GPP
6
Great Point Partners
Connecticut
$15.5M 1,548,479 -534,362 -26%
PAI
7
Palo Alto Investors
California
$13.3M 1,328,734 +557,669 +72%
State Street
8
State Street
Massachusetts
$12.3M 1,233,451 -204,174 -14%
RSCM
9
Rock Springs Capital Management
Maryland
$10.2M 1,025,207 +35,989 +4%
Wellington Management Group
10
Wellington Management Group
Massachusetts
$6.06M 606,266 -299,319 -33%
Vanguard Group
11
Vanguard Group
Pennsylvania
$5.74M 574,147 -199,075 -26%
PM
12
Prosight Management
Texas
$5.45M 545,195 +545,195 New
Goldman Sachs
13
Goldman Sachs
New York
$5.14M 514,753 +88,627 +21%
Geode Capital Management
14
Geode Capital Management
Massachusetts
$4.68M 468,738 -80,180 -15%
Northern Trust
15
Northern Trust
Illinois
$3.86M 386,627 -44,714 -10%
Nuveen Asset Management
16
Nuveen Asset Management
Illinois
$3.82M 381,847 +21,076 +6%
AG
17
Artal Group
Luxembourg
$3.51M 351,500 -18,500 -5%
PA
18
Pinnacle Associates
New York
$3.31M 331,010 -11,901 -3%
Jacobs Levy Equity Management
19
Jacobs Levy Equity Management
New Jersey
$3.18M 318,304 -14,615 -4%
D.E. Shaw & Co
20
D.E. Shaw & Co
New York
$2.94M 294,468 -54,909 -16%
Renaissance Technologies
21
Renaissance Technologies
New York
$2.65M 265,200 -122,762 -32%
ECM
22
Endurant Capital Management
California
$2.63M 262,773 -141,020 -35%
Hudson Bay Capital Management
23
Hudson Bay Capital Management
Connecticut
$2.25M 225,000 +18,445 +9%
LCM
24
Lonestar Capital Management
California
$2.16M 216,400 -72,620 -25%
Two Sigma Advisers
25
Two Sigma Advisers
New York
$2.11M 211,600 -3,200 -1%
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