Live feed19:52:33·1866dINSIDERFilingvia QuantisnowSEC Form 4: Michael Norman Greenberg exercised 5,000 units of Class A Common Stock at a strike of $4.81 and sold $83,650 worth of Class A Common Stock (5,000 units at $16.73)ByQuantisnow·Wall Street's wire, on your screen.BCEL· Atreca Inc.Health CareOriginal source