Live feed12:40:03·60dINSIDERFilingvia QuantisnowSecretary Mcnamara Dennis P sold $423,701 worth of Class A non-voting common stock (4,673 units at $90.67), decreasing direct ownership by 19% to 20,177 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.OPY· Oppenheimer Holdings Inc.FinanceOriginal source