Live feed17:12:37·512dINSIDERFilingvia QuantisnowChief Accounting Officer Simeone Thomas covered exercise/tax liability with 2,563 units of AB Holding Units, increasing direct ownership by 9% to 24,555 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.AB· AllianceBernstein Holding L.P.FinanceOriginal source