X0306 4 2020-07-31 true 0001489393 LyondellBasell Industries N.V. LYB 0001642974 Coombs Daniel M 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false EVP - Global Manuf, Proj & Ref Class A Ordinary Shares 2020-07-31 4 F false 1600.00 62.52 D 41796.308 D Class A Ordinary Shares 2020-07-31 4 F false 947.00 62.52 D 40849.308 D Class A Ordinary Shares 2020-07-31 4 F false 419.00 62.52 D 40430.308 D Class A Ordinary Shares 2020-07-31 4 F false 503.00 62.52 D 39927.308 D Class A Ordinary Shares 2020-07-31 4 D false 5319.00 0.00 D 34608.308 D Class A Ordinary Shares 2020-07-31 4 D false 2404.00 0.00 D 32204.308 D Class A Ordinary Shares 2020-07-31 4 D false 255.00 0.00 D 31949.308 D Class A Ordinary Shares 2020-07-31 4 D false 812.00 0.00 D 31137.308 D Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the pro-rata vesting of 4,065 shares of restricted stock units granted to the reporting person on February 21, 2018. Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the pro-rata vesting of 2,405 shares of restricted stock units granted to the reporting person on February 21, 2019. Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the pro-rata vesting of 1,064 shares of restricted stock units granted to the reporting person on February 20, 2020. Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the pro-rata vesting of 1,276 shares of restricted stock units granted to the reporting person on February 21, 2018. The reporting person's employment with the company ended on July 31, 2020 due to retirement and, pursuant to the terms of his restricted stock unit award, forfeited the 5,319 shares reported on this Form 4. Price is not applicable. The reporting person's employment with the company ended on July 31, 2020 due to retirement and, pursuant to the terms of his restricted stock unit award, forfeited the 2,404 shares reported on this Form 4. The reporting person's employment with the company ended on July 31, 2020 due to retirement and, pursuant to the terms of his restricted stock unit award, forfeited the 255 shares reported on this Form 4. The reporting person's employment with the company ended on July 31, 2020 due to retirement and, pursuant to the terms of his restricted stock unit award, forfeited the 812 shares reported on this Form 4. /s/ Lara A. Mason, Attorney-in-Fact 2020-08-04