Live feed15:18:55·112dINSIDERFilingvia QuantisnowEVP, PEM Segment Head Buesinger Robert F. converted options into 3,478 shares and covered exercise/tax liability with 903 shares, increasing direct ownership by 7% to 37,507 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.WLK· Westlake CorporationIndustrialsOriginal source