Live feed15:38:06·508dINSIDERFilingvia QuantisnowDirector Lowenthal Robert S acquired 19,308 units of Class A non-voting common stock, increasing direct ownership by 26% to 94,103 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.OPY· Oppenheimer Holdings Inc.FinanceOriginal source