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Prothena Corp
PRTA

Overview Fund Activity

140 hedge funds and large institutions have $418M invested in Prothena Corp in 2020 Q4 according to their latest regulatory filings, with 25 funds opening new positions, 24 increasing their positions, 52 reducing their positions, and 24 closing their positions.

Holders
140
Holders Change
–
Holders Change %
0%
% of All Funds
2.48%
Holding in Top 10
3
Holding in Top 10 Change
+2
Holding in Top 10 Change %
+200%
% of All Funds
0.05%
New
25
Increased
24
Reduced
52
Closed
24
Calls
$3.93M
Puts
$1.88M
Net Calls
+$2.04M
Net Calls Change
+$2.49M

Top Buyers

1
FLAM
1
First Light Asset Management
Minnesota
$24.7M
2
IC
2
Ikarian Capital
Texas
$14.3M
3
PM
3
Prosight Management
Texas
$13.1M
4
PAI
4
Palo Alto Investors
California
$20.3M
5
BFM
5
Boothbay Fund Management
New York
$1.5M

Top Sellers

1
O
1
OrbiMed
New York
$21.6M
2
State Street
2
State Street
Massachusetts
$7.33M
3
GPP
3
Great Point Partners
Connecticut
$11.7M
4
Fidelity Investments
4
Fidelity Investments
Massachusetts
$17.8M
5
Wellington Management Group
5
Wellington Management Group
Massachusetts
$2.7M
Name Market Value Shares Shares
Change 		Shares
Change %
EC
1
EcoR1 Capital
California
$113M 9,426,640 – –
BlackRock
2
BlackRock
New York
$44.4M 3,692,970 -35,306 -0.9%
FLAM
3
First Light Asset Management
Minnesota
$24.7M 2,056,453 +2,056,453 New
O
4
OrbiMed
New York
$21.6M 1,797,458 -1,747,017 -49%
Dimensional Fund Advisors
5
Dimensional Fund Advisors
Texas
$20.9M 1,737,969 -27,031 -2%
PAI
6
Palo Alto Investors
California
$20.3M 1,691,805 +363,071 +27%
Fidelity Investments
7
Fidelity Investments
Massachusetts
$17.8M 1,482,361 -516,509 -26%
IC
8
Ikarian Capital
Texas
$14.3M 1,186,700 +1,186,700 New
RSCM
9
Rock Springs Capital Management
Maryland
$13.7M 1,141,100 +115,893 +11%
PM
10
Prosight Management
Texas
$13.1M 1,091,202 +546,007 +100%
GPP
11
Great Point Partners
Connecticut
$11.7M 977,647 -570,832 -37%
State Street
12
State Street
Massachusetts
$7.33M 610,150 -623,301 -51%
Vanguard Group
13
Vanguard Group
Pennsylvania
$7.25M 603,811 +29,664 +5%
Millennium Management
14
Millennium Management
New York
$6.61M 550,270 -168,869 -23%
Geode Capital Management
15
Geode Capital Management
Massachusetts
$5.57M 463,587 -5,151 -1%
Goldman Sachs
16
Goldman Sachs
New York
$5.41M 450,260 -64,493 -13%
Nuveen Asset Management
17
Nuveen Asset Management
Illinois
$4.5M 374,250 -7,597 -2%
Northern Trust
18
Northern Trust
Illinois
$4.45M 370,160 -16,467 -4%
Jacobs Levy Equity Management
19
Jacobs Levy Equity Management
New Jersey
$3.79M 315,791 -2,513 -0.8%
Renaissance Technologies
20
Renaissance Technologies
New York
$3.77M 314,000 +48,800 +18%
PA
21
Pinnacle Associates
New York
$3.71M 308,980 -22,030 -7%
Wellington Management Group
22
Wellington Management Group
Massachusetts
$2.7M 224,733 -381,533 -63%
D.E. Shaw & Co
23
D.E. Shaw & Co
New York
$2.57M 213,609 -80,859 -27%
EP
24
Eversept Partners
New York
$2.44M 203,328 +6,300 +3%
Charles Schwab
25
Charles Schwab
California
$2.19M 182,539 -422 -0.2%
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