X0306 4 2019-02-21 false 0001489393 LyondellBasell Industries N.V. LYB 0001500293 Patel Bhavesh V. 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false Chief Executive Officer Class A Ordinary Shares 2019-02-21 4 A false 34782.00 0.00 A 186356.00 D Class A ordinary shares 130618.00 I By Family Trust Stock Options (Right to Buy) 88.50 2019-02-21 4 A false 190596.00 0.00 A 2029-02-21 Class A Ordinary Shares 190596.00 190596.00 D Includes 115,834 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 23,637 granted on January 12, 2015 that vest on January 12, 2020; 30,344 granted on February 16, 2017 that vest on February 16, 2020 and 27,071 granted on February 21, 2018 that vest on February 21, 2021. The 34,782 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