Live feed16:07:31·1649dINSIDERFilingvia QuantisnowSEC Form 4: Smith Arthur L bought $50,000 worth of shares (25,000 units at $2.00), increasing direct ownership by 16% to 180,326 unitsByQuantisnow·Wall Street's wire, on your screen.TUSK· Mammoth Energy Services Inc.EnergyOriginal source