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Prothena Corporation plc (PRTA)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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21.00+0.43 (+2.09%)
As of 01:35PM EDT. Market open.
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
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%243,269,880
FMR, LLC8,049,79630 Dec 202314.98%169,045,716
Price (T.Rowe) Associates Inc4,237,35130 Dec 20237.89%88,984,371
Blackrock Inc.3,770,65030 Dec 20237.02%79,183,650
State Street Corporation2,758,56430 Dec 20235.14%57,929,844
Wellington Management Group, LLP2,594,10230 Dec 20234.83%54,476,142
Janus Henderson Group PLC2,035,98430 Dec 20233.79%42,755,664
Palo Alto Investors Lp1,660,05730 Dec 20233.09%34,861,197
First Light Asset Management, LLC1,088,80130 Dec 20232.03%22,864,821
Vanguard Group Inc1,070,55530 Dec 20231.99%22,481,655

Top mutual fund holders

HolderSharesDate reported% outValue
Vanguard Specialized-Health Care Fund2,394,26330 Jan 20244.46%50,279,523
Fidelity Growth Company Fund2,339,56528 Feb 20244.36%49,130,865
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF1,949,51828 Feb 20243.63%40,939,878
Price (T.Rowe) New Horizons Fund1,763,91430 Dec 20233.28%37,042,194
iShares Russell 2000 ETF1,022,79428 Feb 20241.90%21,478,674
Price (T.Rowe) Health Sciences Fund847,69730 Dec 20231.58%17,801,637
Fidelity Growth Company K6 Fund823,46028 Feb 20241.53%17,292,660
Fidelity Select Portfolios - Biotechnology801,41728 Feb 20241.49%16,829,757
Fidelity Series Growth Company Fund746,30528 Feb 20241.39%15,672,405
Janus Henderson Global Life Sciences Fund583,76130 Dec 20231.09%12,258,981