Live feed17:03:18·1596dINSIDERFilingvia QuantisnowSEC Form 4: Chung Dong Chune Christopher sold $272,044 worth of shares (11,787 units at $23.08) and exercised 11,787 shares at a strike of $20.68ByQuantisnow·Wall Street's wire, on your screen.NTUS· Natus Medical IncorporatedHealth CareOriginal source