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Historical Lookup

Week of September 18, 2017
Date Open High Low Close Volume
Sep 18, 2017 146.98 146.98 143.47 143.64 1,421,917
Sep 19, 2017 143.90 144.46 141.82 142.83 1,288,550
Sep 20, 2017 142.66 143.51 141.92 142.92 1,407,545

Year End Stock Prices

Year end ALXN 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 Alexion Pharmaceuticals, Inc. does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.