X0508 4/A 2024-02-21 2024-02-23 false 0001489393 LyondellBasell Industries N.V. LYB 0001626994 Oyolu Chukwuemeka A. 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false SVP, CAO & Investor Relations false Class A Ordinary Shares 2024-02-21 4 F false 1029.00 97.38 D 18284.00 D Class A Ordinary Shares 2024-02-21 4 F false 176.00 97.38 D 18108.00 D Class A Ordinary Shares 2024-02-21 4 A false 3996.00 97.38 A 22104.00 D Class A Ordinary Shares 2024-02-21 4 A false 720.00 97.38 A 22824.00 D Represents shares required to satisfy tax withholding obligations in connection with the vesting of 3,996 shares of performance-based stock units granted to the Reporting Person on February 25, 2021. Includes 11,653 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 999 granted effective August 15, 2021 that vest on August 15, 2024; 5,165 granted effective August 15, 2021 that vest on August 15, 2024; 2,687 granted on February 24, 2022 that vest on February 24, 2025 and 2,802 granted on February 23, 2023 that vest on February 23, 2026. Represents shares required to satisfy tax withholding obligations for dividend equivalents accrued of 720 shares in connection with performance-based stock units granted to the Reporting Person on February 25, 2021. Represents shares earned in connection with the performance-based stock units previously granted and unreportable on February 25, 2021 pursuant to the issuer's long-term incentive plan. Shares were earned based upon the level of attainment of certain performance objectives and continued employment. These shares fully vested on February 21, 2024 following certification by the Issuer's Compensation & Talent Development Committee. Represents shares from the settlement of dividend equivalents that accrued on the performance-based stock units prior to vesting. This Form 4/A is being filed to correct a computer systems error that incorrectly calculated the total beneficial ownership of the reporting person. /s/ Lara A. Mason, Attorney-in-Fact 2024-02-28