X0508 4/A 2024-02-21 2024-02-23 false 0001489393 LyondellBasell Industries N.V. LYB 0001948900 Campbell Tracey D 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP, Sustainability & Corp Aff false Class A Ordinary Shares 2024-02-21 4 F false 695.00 97.38 D 4276.77 D Class A Ordinary Shares 2024-02-21 4 F false 142.00 97.38 D 4134.77 D Class A Ordinary Shares 2024-02-21 4 A false 2166.00 97.38 A 6300.77 D Class A Ordinary Shares 2024-02-21 4 A false 440.00 97.38 A 6934.99 D Class A Ordinary Shares 3431.475 I By Spouse Represents shares required to satisfy tax withholding obligations in connection with the vesting of 2,166 shares of performance-based stock units granted to the Reporting Person on February 25, 2021. Includes 3,003 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 290 granted on February 25, 2021 that vest on February 25, 2024; 542 granted on February 25, 2021 that vest on February 25, 2024; 540 granted on February 24, 2022 that vest on February 24, 2025; 300 granted on April 1, 2022 that vest on April 1, 2024; 176 granted on October 15, 2022 that vest on October 15, 2025 and 1,155 granted on February 23, 2023 that vest on February 23, 2026. Represents shares required to satisfy tax withholding obligations for dividend equivalents accrued of 440 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. ESPP purchase of 132.791361 shares for $74.727 per share were allocated on March 31, 2023. ESPP purchase of 61.428727 shares for $82.647 per share were allocated on June 30, 2023. 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