X0306 4 2020-02-20 false 0001489393 LyondellBasell Industries N.V. LYB 0001735999 Smiley Jacinth C 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false Chief Accounting Officer Class A Ordinary Shares 2020-02-20 4 A false 1008.00 0.00 A 6119.00 D Stock Options (Right to Buy) 83.35 2020-02-20 4 A false 6886.00 0.00 A 2030-02-20 Class A Ordinary Shares 6886.00 6886.00 D Includes 6,119 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 627 granted on April 2, 2018 that vest on April 2, 2021; 306 granted on April 2, 2018 that vest on April 2, 2021; 678 granted on February 21, 2019 that vest on February 21, 2022; 1,168 granted on July 18, 2019 that vest July 18, 2020; 1,166 granted on July 18, 2019 that vest on July 18, 2021 and 1,166 granted on July 18, 2019 that vest on July 18, 2022. The 1,008 RSUs reported on this Form 4 vest on February 20, 2023. Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 2,296 vest on February 20, 2021; 2,295 vest on February 20, 2022 and 2,295 vest on February 20, 2023. /s/ Lara A. Mason, Attorney-in-Fact 2020-02-24