Live feed16:34:36·1225dINSIDERFilingvia QuantisnowSEC Form 4: Ussery James Derek was granted 140,677 shares and covered exercise/tax liability with 41,932 shares, increasing direct ownership by 147% to 165,700 units (tax withholding)ByQuantisnow·Wall Street's wire, on your screen.SLCA· U.S. Silica Holdings Inc.IndustrialsOriginal source