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Prothena Corporation plc (PRTA)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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31.45-2.28 (-6.76%)
At close: 04:00PM EST
31.01 -0.44 (-1.40%)
After hours: 05:37PM EST

Major holders

Currency in USD
Breakdown
0.05%% of shares held by all insiders
89.98%% of shares held by institutions
90.02%% of float held by institutions
269Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
EcoR1 Capital, LLC11,284,28029 Sep 202124.22%803,779,264
Price (T.Rowe) Associates Inc6,062,62929 Sep 202113.01%431,841,063
Blackrock Inc.3,769,70429 Sep 20218.09%268,516,015
FMR, LLC2,649,43129 Sep 20215.69%188,718,970
Palo Alto Investors Lp1,685,28229 Sep 20213.62%120,042,636
Dimensional Fund Advisors LP1,579,64829 Sep 20213.39%112,518,327
First Light Asset Management, LLC1,449,49429 Sep 20213.11%103,247,457
State Street Corporation1,405,24429 Sep 20213.02%100,095,530
Redmile Group, LLC901,49129 Sep 20211.93%64,213,203
Vanguard Group, Inc. (The)868,47829 Sep 20211.86%61,861,687

Top mutual fund holders

HolderSharesDate reported% outValue
Price (T.Rowe) New Horizons Fund1,490,12029 Sep 20213.20%106,141,247
Price (T.Rowe) Health Sciences Fund1,006,24429 Sep 20212.16%71,674,760
Price (T.Rowe) Small Cap Stock Fund907,65329 Sep 20211.95%64,652,123
Fidelity Select Portfolios - Biotechnology868,48929 Nov 20211.86%43,554,723
iShares Russell 2000 ETF811,32330 Oct 20211.74%44,906,728
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF737,26129 Nov 20211.58%36,973,639
Fidelity Growth Company Fund674,50129 Nov 20211.45%33,826,225
Price (T.Rowe) Institutional Small-Cap Stock Fund540,04029 Sep 20211.16%38,467,049
Vanguard Extended Market Index Fund463,39229 Sep 20210.99%33,007,412
Price (T.Rowe) Small-Cap Value Fund402,71329 Sep 20210.86%28,685,246