Live feed16:37:01·287dINSIDERFilingvia QuantisnowCEO Young Charles Edwin bought $74,421 worth of shares (39,031 units at $1.91), increasing direct ownership by 3% to 1,477,628 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.SND· Smart Sand Inc.IndustrialsOriginal source