X0508 4 2025-02-22 false 0001489393 LyondellBasell Industries N.V. LYB 0001783902 Seward James Malcolm 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP & Chief Innovation Officer false Class A Ordinary Shares 2025-02-22 4 F false 840.00 76.96 D 28518.00 D Class A Ordinary Shares 2025-02-24 4 F false 876.00 77.31 D 27642.00 D Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 1,696 shares of restricted stock units granted to the reporting person on February 22, 2024. Includes 7,967 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 1,768 granted on February 24, 2022 that vest on February 24, 2025; 168 granted on October 15, 2022 that vest on October 15, 2025; 2,639 granted on February 23, 2023 that vest on February 23, 2026 and 5,088 granted on February 22, 2024 of which 1,696 vested on February 22, 2025, 1,696 vest on February 22, 2026 and 1,696 vest on February 22, 2027. Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 1,768 shares of restricted stock units granted to the reporting person on February 24, 2022. Includes 6,199 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 168 granted on October 15, 2022 that vest on October 15, 2025; 2,639 granted on February 23, 2023 that vest on February 23, 2026 and 5,088 granted on February 22, 2024 of which 1,696 vested on February 22, 2025, 1,696 vest on February 22, 2026 and 1,696 vest on February 22, 2027. /s/ Lara A. Mason, Attorney-in-Fact 2025-02-25