Historic Stock Lookup

Adjusted historic prices for the week of March 20, 2017
Date Open High Low Close Volume
Mar 20, 2017 53.88 54.70 53.19 54.34 117,904
Mar 21, 2017 54.69 55.84 50.72 50.79 405,503
Mar 22, 2017 50.78 51.75 49.71 51.73 285,713
Mar 23, 2017 51.69 52.76 51.01 51.76 169,923
Mar 24, 2017 52.00 53.04 51.71 52.50 180,981

Year End Stock Prices

Year end PRTA stock price

The historical stock information provided is for informational purposes only and is not intended for trading purposes. The historical stock information is provided by Mergent, a third party service, and Prothena Corporation plc does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.