X0306 4 2023-02-22 false 0001489393 LyondellBasell Industries N.V. LYB 0001649570 Guilfoyle James D 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false SVP, O&P (EAMEI) Class A Ordinary Shares 2023-02-22 4 A false 8729.00 94.89 A 43062.65 D Class A Ordinary Shares 2023-02-22 4 A false 1950.00 94.89 A 45012.65 D Class A Ordinary Shares 2023-02-22 4 F false 732.00 94.89 D 44280.65 D Class A Ordinary Shares 2023-02-22 4 F false 3273.00 94.89 D 41007.65 D Represents shares earned in connection with the performance-based stock units previously granted and unreportable on February 20, 2020 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 22, 2023 following certification by the Issuer's compensation committee. Includes 11,158 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 5,188 granted on February 25, 2021 that vest on February 25, 2024 and 5,970 granted on February 24, 2022 that vest on February 24, 2025. Represents shares from the settlement of dividend equivalents that accrued on the performance-based stock units prior to vesting. Represents shares required to satisfy tax withholding obligations for dividend equivalents accrued of 1,950 shares in connection with performance-based stock units granted to the Reporting Person on February 20, 2020. Represents shares required to satisfy tax withholding obligations in connection with the vesting of 8,729 shares of performance-based stock units granted to the Reporting Person on February 20, 2020. /s/ Lara A. Mason, Attorney-in-Fact 2023-02-24