Live feed17:29:24·339dINSIDERFilingvia QuantisnowDirector Smith Arthur L sold $50,200 worth of shares (20,000 units at $2.51), decreasing direct ownership by 13% to 130,034 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.TUSK· Mammoth Energy Services Inc.EnergyOriginal source