X0306 4 2019-02-21 false 0001489393 LyondellBasell Industries N.V. LYB 0001500649 Covezzi Massimo 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false SVP Research & Development Class A Ordinary Shares 2019-02-21 4 A false 1418.00 0.00 A 15828.00 D Stock Options (Right to Buy) 88.50 2019-02-21 4 A false 7769.00 0.00 A 2029-02-21 Class A Ordinary Shares 7769.00 7769.00 D Includes 3,899 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 1,234 granted on February 16, 2017 that vest on February 16, 2020 and 1,247 granted on February 21, 2018 that vest on February 21, 2021. The 1,418 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: 2,591 vest on February 21, 2020, 2,589 vest on February 21, 2021 and 2,589 vest on February 21, 2022. /s/ Lara A. Mason, Attorney-in-Fact 2019-02-25