Live feed15:51:31·97dINSIDERFilingvia QuantisnowCO-CEO Gerstenberg Eric W covered exercise/tax liability with 977 shares and returned 2,166 shares to the company, decreasing direct ownership by 7% to 39,877 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.CLH· Clean Harbors Inc.IndustrialsOriginal source