X0306 4 2021-02-25 false 0001489393 LyondellBasell Industries N.V. LYB 0001697503 Friedrichs Dale D 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false SVP, Human Res & Global Proj Class A Ordinary Shares 2021-02-25 4 A false 2796.00 0.00 A 11821.00 D Stock Options (Right to Buy) 104.41 2021-02-25 4 A false 14602.00 0.00 A 2031-02-25 Class A Ordinary Shares 14602.00 14602.00 D Includes 6,020 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan including 848 granted on February 21, 2019 that vest on February 21, 2022 and 2,376 granted on February 20, 2020 that vest on February 20, 2023. The 2,796 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: 4,868 vest February 25, 2022, 4,867 vest February 25, 2023 and 4,867 vest February 25, 2024. /s/ Lara A. Mason, Attorney-in-Fact 2021-03-01