Live feed16:48:52·294dINSIDERFilingvia QuantisnowDirector Shelton Larry exercised 2,400 shares at a strike of $4.19, increasing direct ownership by 1% to 187,880 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.PESI· Perma-Fix Environmental Services Inc.IndustrialsOriginal source