X0306 4 2021-12-31 true 0001489393 LyondellBasell Industries N.V. LYB 0001500293 Patel Bhavesh V. 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM true true false false Chief Executive Officer Class A Ordinary Shares 2021-12-31 4 D false 966.00 0.00 D 186534.00 D Class A Ordinary Shares 2021-12-31 4 D false 12794.00 0.00 D 173740.00 D Class A Ordinary Shares 2021-12-31 4 D false 21713.00 0.00 D 152027.00 D Class A Ordinary Shares 2021-12-31 4 F false 13307.00 92.23 D 138720.00 D Class A Ordinary Shares 2021-12-31 4 F false 8908.00 92.23 D 129812.00 D Class A Ordinary Shares 2021-12-31 4 F false 3760.00 92.23 D 126052.00 D Class A Ordinary Shares 207375.00 I By Family Trust The reporting person retired on December 31, 2021 and, pursuant to the terms of his restricted stock unit award, forfeited the 966 reported on this Form 4. Price is not applicable. The reporting person retired on December 31, 2021 and, pursuant to the terms of his restricted stock unit award, forfeited the 12,794 reported on this Form 4. The reporting person retired on December 31, 2021 and, pursuant to the terms of his restricted stock unit award, forfeited the 21,713 reported on this Form 4. Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the prorated vesting 33,816 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 prorated vesting 22,637 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 prorated vesting 9,554 shares of restricted stock units granted to the reporting person on February 25, 2021. Represents shares held by the reporting person's family trust. /s/ Lara A. Mason, Attorney-in-Fact 2022-01-04