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Prothena Corporation plc (PRTA)

NasdaqGS - NasdaqGS Real-time price. Currency in USD
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56.55+1.59 (+2.89%)
At close: 04:00PM EST
56.50 -0.05 (-0.09%)
After hours: 06:33PM EST
Insider roster
Insider transactions

Major holders

Currency in USD
Breakdown
4.99%% of shares held by all insiders
88.24%% of shares held by institutions
92.87%% of float held by institutions
281Number of institutions holding shares

Top institutional holders

HolderSharesDate reported% outValue
EcoR1 Capital, LLC11,584,28029 Sept 202223.95%655,091,025
FMR, LLC3,162,41829 Sept 20226.54%178,834,735
Blackrock Inc.3,138,74429 Sept 20226.49%177,495,970
Price (T.Rowe) Associates Inc2,981,94129 Sept 20226.16%168,628,761
Avidity Partners Management, LP1,967,00029 Sept 20224.07%111,233,848
State Street Corporation1,881,79429 Sept 20223.89%106,415,449
Palo Alto Investors Lp1,649,77729 Sept 20223.41%93,294,888
First Light Asset Management, LLC1,538,67829 Sept 20223.18%87,012,239
Dimensional Fund Advisors LP1,483,90529 Sept 20223.07%83,914,826
T. Rowe Price Investment Management, Inc.847,96229 Sept 20221.75%47,952,250

Top mutual fund holders

HolderSharesDate reported% outValue
Price (T.Rowe) New Horizons Fund1,473,72329 Sept 20223.05%83,339,034
SPDR (R) Ser Tr-SPDR (R) S&P (R) Biotech ETF1,322,92930 Dec 20222.73%74,811,633
iShares Russell 2000 ETF834,41430 Dec 20221.72%47,186,111
Fidelity Select Portfolios - Biotechnology761,58929 Nov 20221.57%43,067,857
Fidelity Growth Company Fund629,96030 Oct 20221.30%35,624,237
Price (T.Rowe) Health Sciences Fund574,53429 Sept 20221.19%32,489,897
Vanguard Extended Market Index Fund497,88829 Sept 20221.03%28,155,566
DFA U.S. Small Cap Series380,43630 Oct 20220.79%21,513,655
iShares NASDAQ Biotechnology ETF377,80230 Dec 20220.78%21,364,702
Price (T.Rowe) QM U.S. Small Cap Growth Equity Fd304,13029 Sept 20220.63%17,198,551