|Apr 13, 2015||56.37||57.13||56.28||56.87||512,006|
|Apr 14, 2015||57.00||57.90||56.36||57.59||430,313|
|Apr 15, 2015||57.65||57.78||56.83||57.07||603,518|
|Apr 16, 2015||56.88||57.32||55.94||56.10||600,168|
|Apr 17, 2015||55.59||56.46||55.04||56.23||384,234|
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.