Live feed09:25:10·1907dINSIDERFilingvia QuantisnowSEC Form 4: W Michael Silberman exercised 2,673 units of Common stock at a strike of $0.00 and disposed of $4,796 worth of Common stock (668 units at $7.18)ByQuantisnow·Wall Street's wire, on your screen.TREC· Trecora ResourcesOriginal source