Live feed16:30:19·565dINSIDERFilingvia QuantisnowOfficer Wang David H sold $981,000 worth of shares (56,250 units at $17.44), decreasing direct ownership by 9% to 598,006 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ACMR· ACM Research Inc.TechnologyOriginal source