Live feed12:44:48·17mINSIDERFilingvia QuantisnowDirector Otto Robert P sold $304,970 worth of shares (4,109 units at $74.22), decreasing direct ownership by 27% to 10,886 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.BKH· Black Hills CorporationUtilitiesOriginal source