|Apr 21, 2014||54.58||54.95||54.00||54.49||708,162|
|Apr 22, 2014||54.62||54.80||54.32||54.50||1,007,916|
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 Armstrong World Industries Inc does not maintain or provide information directly to this service. Prices display split-adjusted cost basis per share on that date.