Live feed16:42:19·928dINSIDERFilingvia QuantisnowKrawtschuk Christopher sold $20,437 worth of shares (4,526 units at $4.52), decreasing direct ownership by 9% to 45,474 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.BLUE· bluebird bio Inc.Health CareOriginal source