Live feed16:43:03·1569dINSIDERFilingvia QuantisnowSEC Form 4: Quarles Patrick D. converted options into 34,854 shares and covered exercise/tax liability with 12,199 shares, increasing direct ownership by 8% to 293,469 unitsByQuantisnow·Wall Street's wire, on your screen.TREC· Trecora ResourcesOriginal source