|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
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.