Live feed16:51:36·959dSECFilingvia QuantisnowSummit Materials Inc. filed SEC Form 8-K: Entry into a Material Definitive Agreement, Unregistered Sales of Equity Securities, Material Modification to Rights of Security Holders, Financial Statements and ExhibitsByQuantisnow·Wall Street's wire, on your screen.SUM· Summit Materials Inc.IndustrialsOriginal source