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Prothena Corporation plc (PRTA)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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20.57-0.43 (-2.05%)
At close: 04:00PM EDT
20.57 0.00 (0.00%)
After hours: 04:02PM EDT

Major holders

Currency in USD
12.44%% of shares held by all insiders
100.76%% of shares held by institutions
115.07%% of float held by institutions
274Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
EcoR1 Capital, LLC11,584,28030 Dec 202321.56%238,288,636
FMR, LLC8,049,79630 Dec 202314.98%165,584,301
Price (T.Rowe) Associates Inc4,237,35130 Dec 20237.89%87,162,308
Blackrock Inc.3,770,65030 Dec 20237.02%77,562,269
State Street Corporation2,758,56430 Dec 20235.14%56,743,660
Wellington Management Group, LLP2,594,10230 Dec 20234.83%53,360,677
Janus Henderson Group PLC2,035,98430 Dec 20233.79%41,880,190
Palo Alto Investors Lp1,660,05730 Dec 20233.09%34,147,371
First Light Asset Management, LLC1,088,80130 Dec 20232.03%22,396,636
Vanguard Group Inc1,070,55530 Dec 20231.99%22,021,316

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Specialized-Health Care Fund2,394,26330 Jan 20244.46%49,249,989
Fidelity Growth Company Fund2,339,56528 Feb 20244.36%48,124,851
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF1,949,51828 Feb 20243.63%40,101,584
Price (T.Rowe) New Horizons Fund1,763,91430 Dec 20233.28%36,283,710
iShares Russell 2000 ETF1,022,79428 Feb 20241.90%21,038,872
Price (T.Rowe) Health Sciences Fund847,69730 Dec 20231.58%17,437,127
Fidelity Growth Company K6 Fund823,46028 Feb 20241.53%16,938,571
Fidelity Select Portfolios - Biotechnology801,41728 Feb 20241.49%16,485,147
Fidelity Series Growth Company Fund746,30528 Feb 20241.39%15,351,493
Janus Henderson Global Life Sciences Fund583,76130 Dec 20231.09%12,007,963