Live feed20:15:15·136dINSIDERFilingvia QuantisnowChief Executive Officer Castagna Michael sold $252,696 worth of shares (42,116 units at $6.00) and exercised 42,116 shares at a strike of $4.55 (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MNKD· MannKind CorporationHealth CareOriginal source