X0508 4 2025-02-22 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 2025-02-22 4 F false 821.00 76.96 D 67746.00 D Class A Ordinary Shares 2025-02-24 4 F false 1269.00 77.31 D 66477.00 D Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 3,219 shares of restricted stock units granted to the reporting person on February 22, 2024. Includes 17,150 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 5,210 granted on February 24, 2022 that vest on February 24, 2025; 5,504 granted on February 23, 2023 that vest on February 23, 2026 and 9,655 granted on February 22, 2024 of which 3,219 vested on February 22, 2025, 3,218 vest on February 22, 2026 and 3,218 vest on February 22, 2027. Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 5,210 shares of restricted stock units granted to the reporting person on February 24, 2022. Includes 11,940 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 5,504 granted on February 23, 2023 that vest on February 23, 2026 and 9,655 granted on February 22, 2024 of which 3,219 vested on February 22, 2025, 3,218 vest on February 22, 2026 and 3,218 vest on February 22, 2027. /s/ Lara A. Mason, Attorney-in-Fact 2025-02-25