Live feed16:30:25·339dINSIDERFilingvia QuantisnowDirector Liu Tracy exercised 15,000 shares at a strike of $1.00 and sold $450,000 worth of shares (15,000 units at $30.00) (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.ACMR· ACM Research Inc.TechnologyOriginal source