X0508 4 2024-02-21 false 0001489393 LyondellBasell Industries N.V. LYB 0001949202 van der Laan Yvonne 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP, Circular & Low Carbon Sol false Class A Ordinary Shares 2024-02-21 4 F false 45.00 97.38 D 14775.00 D Class A Ordinary Shares 2024-02-21 4 F false 220.00 97.38 D 14555.00 D Class A Ordinary Shares 2024-02-21 4 A false 462.00 97.38 A 15017.00 D Class A Ordinary Shares 2024-02-21 4 A false 94.00 97.38 A 15111.00 D Represents shares required to satisfy tax withholding obligations for dividend equivalents accrued of 94 shares in connection with performance-based stock units granted to the Reporting Person on February 25, 2021. Includes 2,806 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 428 granted on February 25, 2021 that vest on February 25, 2024; 400 granted on February 24, 2022 that vest on February 24, 2025; 110 granted on April 1, 2022 that vest on April 1, 2024; 273 granted on October 15, 2022 that vest on October 15, 2025 and 1,595 granted on February 23, 2023 that vest on February 23, 2026. Represents shares required to satisfy tax withholding obligations in connection with the vesting of 462 shares of 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. /s/ Lara A. Mason, Attorney-in-Fact 2024-02-23