X0306 4 2016-05-19 0 0000805264 AXIALL CORP/DE/ AXLL 0001225250 THOMPSON GREGORY C 1000 ABERNATHY ROAD NE SUITE 1200 ATLANTA GA 30328 0 1 0 0 Chief Financial Officer AXLL Common Stock 2016-05-19 4 F 0 2482 22.11 D 221543 D AXLL Common Stock 2016-05-20 4 A 0 12452 22.29 A 233995 D AXLL Common Stock 2016-05-20 4 F 0 4846 22.29 D 229149 D AXLL Common Stock 870 I By 401(k) Payment of a tax liability by delivering or whitholding securities incident of the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. Vesting of final one-half of performance restricted stock units granted to the reporting person on May 20, 2013, for which the Company's achievement of synergies is the performance restriction. /s/ Gregory C. Thompson 2016-05-23