Live feed18:22:17·1920dINSIDERFilingvia QuantisnowSEC Form 4: Salle Blake P. exercised 657 units of Common Stock at a strike of $0.00 and disposed of $33,673 worth of Common Stock (259 units at $130.01), increasing direct ownership by 2% to 21,528 units (tax liability)ByQuantisnow·Wall Street's wire, on your screen.PFPT· Proofpoint, Inc.TechnologyOriginal source