PRTA - Prothena Corporation plc

NasdaqGS - NasdaqGS Real-time price. Currency in USD
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
4.72%% of shares held by all insiders
95.10%% of shares held by institutions
99.81%% of float held by institutions
288Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
EcoR1 Capital, LLC11,584,28030 Mar 202321.96%810,320,350
FMR, LLC6,762,02530 Mar 202312.82%473,003,628
Blackrock Inc.3,624,62730 Mar 20236.87%253,542,647
Price (T.Rowe) Associates Inc3,202,29330 Mar 20236.07%224,000,385
Wellington Management Group, LLP2,266,07830 Mar 20234.30%158,512,149
State Street Corporation2,102,45830 Mar 20233.99%147,066,930
Palo Alto Investors Lp1,663,77730 Mar 20233.15%116,381,196
Janus Henderson Group PLC1,596,30330 Mar 20233.03%111,661,389
First Light Asset Management, LLC1,511,16830 Mar 20232.86%105,706,196
Dimensional Fund Advisors LP1,232,63530 Mar 20232.34%86,222,814

Top mutual fund holders

HolderSharesDate reported% outValue
Price (T.Rowe) New Horizons Fund1,563,23130 Dec 20222.97%109,348,003
Fidelity Growth Company Fund1,228,74327 Feb 20232.34%85,950,569
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF1,173,00827 Feb 20232.23%82,051,906
Fidelity Select Portfolios - Biotechnology933,18927 Feb 20231.77%65,276,567
Vanguard Specialized-Health Care Fund852,51230 Jan 20231.62%59,633,211
iShares Russell 2000 ETF804,39127 Feb 20231.53%56,267,147
Price (T.Rowe) Health Sciences Fund649,91030 Dec 20221.24%45,461,202
Vanguard Extended Market Index Fund538,02830 Dec 20221.02%37,635,056
Mutual Fund Ser Tr-Eventide Healthcare & Life Sciences Fund438,73230 Dec 20220.83%30,689,302
Fidelity Series Growth Company Fund438,00527 Feb 20230.83%30,638,448