X0306 4 2019-02-21 false 0001489393 LyondellBasell Industries N.V. LYB 0001662213 Aebischer Thomas 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP & CFO Class A Ordinary Shares 2019-02-21 4 A false 6972.00 0.00 A 38855.00 D Stock Options (Right to Buy) 88.50 2019-02-21 4 A false 38202.00 0.00 A 2029-02-21 Class A Ordinary Shares 38202.00 38202.00 D Includes 18,681 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 6,244 granted on February 16, 2017 that vest on February 16, 2020 and 5,465 granted on February 21, 2018 that vest on February 21, 2021. The 6,972 RSUs reported on this Form 4 vest on February 21, 2022. Granted pursuant to the issuer's long-term incentive plan. Award vests in three equal installments on the 1st, 2nd and 3rd anniversaries of the date of grant of February 21, 2019. /s/ Lara A. Mason, Attorney-in-Fact 2019-02-25