Live feed16:30:27·668dINSIDERFilingvia QuantisnowDirector Dun Haiping sold $297,750 worth of shares (15,000 units at $19.85), decreasing direct ownership by 2% to 774,187 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ACMR· ACM Research Inc.TechnologyOriginal source