Live feed16:30:33·1456dINSIDERFilingvia QuantisnowSEC Form 4: Keating Ronald C returned $470,400 worth of shares to the company (9,800 units at $48.00), closing all direct ownership in the companyByQuantisnow·Wall Street's wire, on your screen.ECOL· US Ecology IncPublic UtilitiesOriginal source