Live feed17:28:46·638dINSIDERFilingvia QuantisnowDirector Shaver Charles W returned $2,382,102 worth of shares to the company (153,684 units at $15.50), closing all direct ownership in the company (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.SLCA· U.S. Silica Holdings Inc.IndustrialsOriginal source