X0306 4 2020-02-16 false 0001489393 LyondellBasell Industries N.V. LYB 0001649570 Guilfoyle James D 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP, Adv Polymer Sol & Sup Chn Class A Ordinary Shares 2020-02-16 4 F false 546.00 82.60 D 19929.00 D Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 2,126 shares of restricted stock units granted to the reporting person on February 16, 2017. Includes 9,141 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 2,308 granted on February 21, 2018 that vest on February 21, 2021; 3,443 granted on February 21, 2019 that vest on February 21, 2022 and 3,390 granted on February 21, 2019 that vest on February 21, 2022. /s/ Lara A. Mason, Attorney-in-Fact 2020-02-17