Live feed06:06:56·641dSECFilingvia QuantisnowArmstrong World Industries Inc filed SEC Form 8-K: Results of Operations and Financial Condition, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Regulation FD Disclosure, Financial Statements and ExhibitsByQuantisnow·Wall Street's wire, on your screen.AWI· Armstrong World Industries IncIndustrialsOriginal source