X0508 4 2024-02-21 false 0001489393 LyondellBasell Industries N.V. LYB 0001634184 Kaplan Jeffrey A 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP and General Counsel false Class A Ordinary Shares 2024-02-21 4 F false 1586.00 97.38 D 83418.00 D Class A Ordinary Shares 2024-02-21 4 F false 6321.00 97.38 D 77097.00 D Class A Ordinary Shares 2024-02-21 4 A false 19868.00 97.38 A 96965.00 D Class A Ordinary Shares 2024-02-21 4 A false 4030.00 97.38 A 100995.00 D Represents shares required to satisfy tax withholding obligations for dividend equivalents accrued of 4,030 shares in connection with performance-based stock units granted to the Reporting Person on February 25, 2021. Includes 15,681 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan including 4,967 granted on February 25, 2021 that vest on February 25, 2024; 5,210 granted on February 24, 2022 that vest on February 24, 2025 and 5,504 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 19,868 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