X0306 4 2020-02-16 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 SVP, Human Resources Class A Ordinary Shares 2020-02-16 4 F false 199.00 82.60 D 6719.00 D Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 668 shares of restricted stock units granted to the reporting person on February 16, 2017. Includes 3,278 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan including 596 granted on February 21, 2018 that vest on February 21, 2021; 1,834 granted on February 21, 2018 that vest on February 21, 2021 and 848 granted on February 21, 2019 that vest on February 21, 2022. /s/ Lara A. Mason, Attorney-in-Fact 2020-02-17