X0306 4 2019-02-21 false 0001489393 LyondellBasell Industries N.V. LYB 0001642974 Coombs Daniel M 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP - Global O&P, Proc, Tech Class A Ordinary Shares 2019-02-21 4 A false 4809.00 0.00 A 29183.362 D Stock Options (Right to Buy) 88.50 2019-02-21 4 A false 26351.00 0.00 A 2029-02-21 Class A Ordinary Shares 26351.00 26351.00 D Includes 16,558 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 5,341 granted on February 16, 2017 that vest on February 16, 2020, 4,877 granted on February 21, 2018 that vest on February 21, 2021 and 1,531 granted on February 21, 2018 that vest on February 21, 2021. The 4,809 RSUs reported on this Form 4 vest on February 21, 2022. Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 8,785 vest on February 21, 2020, 8,783 vest on February 21, 2021 and 8,783 vest on February 21, 2022. /s/ Lara A. Mason, Attorney-in-Fact 2019-02-25