Live feed17:59:54·1491dINSIDERFilingvia QuantisnowSEC Form 4: Derrickson Ralph C sold $480,750 worth of shares (5,000 units at $96.15), decreasing direct ownership by 12% to 37,281 unitsByQuantisnow·Wall Street's wire, on your screen.PRFT· Perficient Inc.TechnologyOriginal source