X0306 4 2021-02-25 false 0001489393 LyondellBasell Industries N.V. LYB 0001791947 Foley Kimberly A 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false SVP HSE, Glob Eng & Turnarnds Class A Ordinary Shares 2021-02-25 4 A false 1444.00 0.00 A 19177.547 D Stock Options (Right to Buy) 104.41 2021-02-25 4 A false 7540.00 0.00 A 2031-02-25 Class A Ordinary Shares 7540.00 7540.00 D Includes 3,040 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 612 granted on February 21, 2019 that vest on February 21, 2022; 750 granted on February 20, 2020 that vest on February 20, 2023 and 234 granted on August 1, 2020 that vest on August 1, 2023. The 1,444 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: 2,514 vest February 25, 2022, 2,513 vest February 25, 2023 and 2513 vest February 25, 2024. /s/ Lara A. Mason, Attorney-in-Fact 2021-03-01