Live feed17:14:21·512dINSIDERFilingvia QuantisnowChief People Officer Spencer Catherine R. covered exercise/tax liability with 16,034 units of AB Holding Units, increasing direct ownership by 20% to 72,711 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AB· AllianceBernstein Holding L.P.FinanceOriginal source