Live feed17:55:49·139dINSIDERFilingvia QuantisnowPresident, R&D Boshoff Christoffel covered exercise/tax liability with 12,887 shares, decreasing direct ownership by 8% to 155,645 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.PFE· Pfizer Inc.Health CareOriginal source