Live feed16:29:29·1459dINSIDERFilingvia QuantisnowSEC Form 4: Dorton Katina returned $648,000 worth of shares to the company (13,500 units at $48.00), closing all direct ownership in the companyByQuantisnow·Wall Street's wire, on your screen.ECOL· US Ecology IncPublic UtilitiesOriginal source