Live feed15:41:15·119dINSIDERFilingvia QuantisnowPresident, R&D Boshoff Christoffel covered exercise/tax liability with 816 shares, decreasing direct ownership by 0.52% to 154,829 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.PFE· Pfizer Inc.Health CareOriginal source