X0306 4 2017-12-29 0 0000060714 LSB INDUSTRIES INC LXU 0001322265 Greenwell Daniel D 16 SOUTH PENNSYLVANIA AVENUE OKLAHOMA CITY OK 73107 1 1 0 0 CEO and President Common Stock 2017-12-29 4 F 0 108448 8.91 D 590512 D Common Stock 2017-12-30 4 A 0 308219 8.76 A 898731 D Shares withheld to pay taxes upon vesting of Restricted Stock Award previously awarded pursuant to the LSB Industries, Inc. 2008 Incentive Stock Plan and/or 2016 Long Term Incentive Plan. Restricted Stock Award pursuant to the LSB Industries, Inc. 2016 Long Term Incentive Plan. One-third of the award will vest on the first anniversary of the grant date, and each subsequent anniversary, such that 100% of the award shall be vested on the third anniversary of the grant date /s/ Daniel D. Greenwell 2018-01-02