Live feed17:05:53·1214dINSIDERFilingvia QuantisnowSEC Form 4: Winkler Michael L covered exercise/tax liability with 12,827 shares, decreasing direct ownership by 4% to 332,540 units to satisfy tax liabilityByQuantisnow·Wall Street's wire, on your screen.SLCA· U.S. Silica Holdings Inc.IndustrialsOriginal source
