X0508 4 2025-02-22 false 0001489393 LyondellBasell Industries N.V. LYB 0001697503 Friedrichs Dale D 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP, Ops Excellence, HSE false Class A Ordinary Shares 2025-02-22 4 F false 535.00 76.96 D 33685.00 D Class A Ordinary Shares 2025-02-24 4 F false 908.00 77.31 D 32777.00 D Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 2,429 shares of restricted stock units granted to the reporting person on February 22, 2024. Includes 12,843 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 3,503 granted on February 24, 2022 that vest on February 24, 2025; 188 granted on October 15, 2022 that vest on October 15, 2025; 4,296 granted on February 23, 2023 that vest on February 23, 2026 and 7,285 granted on February 22, 2024 of which 2,429 vested on February 22, 2025, 2,428 vest on February 22, 2026 and 2,428 vest on February 22, 2027. Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 3,503 shares of restricted stock units granted to the reporting person on February 24, 2022. Includes 9,340 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 188 granted on October 15, 2022 that vest on October 15, 2025; 4,296 granted on February 23, 2023 that vest on February 23, 2026 and 7,285 granted on February 22, 2024 of which 2,429 vested on February 22, 2025, 2,428 vest on February 22, 2026 and 2,428 vest on February 22, 2027. /s/ Lara A. Mason, Attorney-in-Fact 2025-02-25