Live feed16:23:08·1316dINSIDERFilingvia QuantisnowSEC Form 4: Smith Arthur L sold $141,324 worth of shares (20,000 units at $7.07), decreasing direct ownership by 11% to 163,368 unitsByQuantisnow·Wall Street's wire, on your screen.TUSK· Mammoth Energy Services Inc.EnergyOriginal source