Live feed16:05:20·749dINSIDERFilingvia QuantisnowScarlett John A exercised 600,000 shares at a strike of $2.54 and sold $2,400,000 worth of shares (600,000 units at $4.00) (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.GERN· Geron CorporationHealth CareOriginal source