Live feed16:13:43·860dINSIDERFilingvia QuantisnowRussell Stacy was granted 57,375 shares and covered exercise/tax liability with 27,005 shares, increasing direct ownership by 17% to 206,752 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.SLCA· U.S. Silica Holdings Inc.IndustrialsOriginal source