X0306 4 2021-02-25 false 0001489393 LyondellBasell Industries N.V. LYB 0001780174 Rhenman Torkel 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP, I&D and Refining Class A Ordinary Shares 2021-02-25 4 A false 5878.00 0.00 A 29790.00 D Stock Options (Right to Buy) 104.41 2021-02-25 4 A false 30707.00 0.00 A 2031-02-25 Class A Ordinary Shares 30707.00 30707.00 D Includes 19,882 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 2,523 granted on July 15, 2019 that vest on July 15, 2021; 2,523 granted on July 15, 2019 that vest on July 15, 2022; 2,722 granted on July 15, 2019 that vest on July 15, 2022 and 6,236 granted on February 20, 2020 that vest on February 20, 2023. The 5,878 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: 10,237 vest February 25, 2022, 10,235 vest February 25, 2023 and 10,235 vest February 25, 2024. /s/ Lara A. Mason, Attorney-in-Fact 2021-03-01