X0306 4 2021-02-25 false 0001489393 LyondellBasell Industries N.V. LYB 0001500293 Patel Bhavesh V. 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM true true false false Chief Executive Officer Class A Ordinary Shares 2021-02-25 4 A false 31267.00 0.00 A 187500.00 D Class A Ordinary Shares 207375.00 I By Family Trust Stock Options (Right to Buy) 104.41 2021-02-25 4 A false 163337.00 0.00 A 2031-02-25 Class A Ordinary Shares 163337.00 163337.00 D Includes 101,480 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 34,782 granted on February 21, 2019 that vest on February 21, 2022 and 35,431 granted on February 20, 2020 that vest on February 20, 2023. The 31,267 RSUs reported on this Form 4 vest on February 25, 2024. Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 54,447 vest February 25, 2022, 54,445 vest February 25, 2023 and 54,445 vest February 25, 2024. /s/ Lara A. Mason, Attorney-in-Fact 2021-03-01