X0306 4 2020-02-16 false 0001489393 LyondellBasell Industries N.V. LYB 0001791947 Foley Kimberly A 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false VP Health Safety & Environment Class A Ordinary Shares 2020-02-16 4 F false 155.00 82.60 D 15011.547 D Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 520 shares of restricted stock units granted to the reporting person on February 16, 2017. Includes 1,094 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 482 granted on February 21, 2018 that vest on February 21, 2021 and 612 granted on February 21, 2019 that vest on February 21, 2022. /s/ Lara A. Mason, Attorney-in-Fact 2020-02-17