X0306 4 2021-03-01 false 0001489393 LyondellBasell Industries N.V. LYB 0001783902 Seward James Malcolm 4TH FLOOR ONE VINE STREET LONDON X0 W1J 0AH UNITED KINGDOM false true false false SVP, R&D, Tech & Sustain. Class A Ordinary Shares 2021-03-01 4 M false 1663.00 89.94 A 16183.00 D Class A Ordinary Shares 2021-03-01 4 M false 2728.00 83.35 A 18911.00 D Class A Ordinary Shares 2021-03-01 4 M false 1997.00 92.69 A 20908.00 D Class A Ordinary Shares 2021-03-01 4 M false 2086.00 77.93 A 22994.00 D Class A Ordinary Shares 2021-03-01 4 M false 2377.00 88.50 A 25371.00 D Class A Ordinary Shares 2021-03-01 4 M false 424.00 72.60 A 25795.00 D Class A Ordinary Shares 2021-03-01 4 F false 1805.00 106.34 D 23990.00 D Class A Ordinary Shares 2021-03-01 4 F false 1868.00 106.34 D 22122.00 D Class A Ordinary Shares 2021-03-01 4 F false 2176.00 106.34 D 19946.00 D Class A Ordinary Shares 2021-03-01 4 F false 1534.00 106.34 D 18412.00 D Class A Ordinary Shares 2021-03-01 4 F false 357.00 106.34 D 18055.00 D Class A Ordinary Shares 2021-03-01 4 F false 2431.00 106.34 D 15624.00 D Stock Options (Right to Buy) 92.69 2021-03-01 4 M false 1997.00 0.00 D 2027-02-16 Class A Ordinary Shares 1997.00 0.00 D Stock Options (Right to Buy) 89.94 2021-03-01 4 M false 1663.00 0.00 D 2025-02-17 Class A Ordinary Shares 1663.00 0.00 D Stock Options (Right to Buy) 88.50 2021-03-01 4 M false 2377.00 0.00 D 2029-02-21 Class A Ordinary Shares 2377.00 1188.00 D Stock Options (Right to Buy) 83.35 2021-03-01 4 M false 2728.00 0.00 D 2030-02-20 Class A Ordinary Shares 2728.00 5456.00 D Stock Options (Right to Buy) 77.93 2021-03-01 4 M false 2086.00 0.00 D 2026-02-16 Class A Ordinary Shares 2086.00 0.00 D Stock Options (Right to Buy) 72.60 2021-03-01 4 M false 424.00 0.00 D 2029-08-15 Class A Ordinary Shares 424.00 848.00 D Represents a cashless exercise-and-hold, where shares were withheld to cover the option exercise price and anticipated taxes, and the remaining shares are retained by the reporting person. Includes 5,232 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 1,740 granted on August 29, 2018 that vest on August 29, 2021; 651 granted on February 21, 2019 that vest on February 21, 2022; 210 granted on August 15, 2019 that vest on August 15, 2022; 1,198 granted on February 20, 2020 that vest on February 20, 2023 and 1,433 granted on February 25, 2021 that vest on February 25, 2024. Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 667 vested on February 16, 2018, 665 vested on February 16, 2019 and 665 vested on February 16, 2020. Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 555 vested on February 17, 2016, 554 vested on February 17, 2017 and 554 vested on February 17, 2018. Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 1,189 vested on February 21, 2020, 1,188 vested on February 21, 2021 and 1,188 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 20, 2020. Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 696 vested on February 16, 2017, 695 vested on February 16, 2018 and 695 vested on February 16, 2019. 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 August 15, 2019. /s/ Lara A. Mason, Attorney-in-Fact 2021-03-03