Vanacker Peter Z. E.

SEC source: 0001911538-26-000006 · primarydocument.xml · nonDerivative · entry 2

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 248,554

F3 · balance_after: Includes 152,099 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 15,406 granted on February 22, 2024 that vest on February 22, 2027; 19,072 granted on February 27, 2025 that vest on February 27, 2027 and 19,072 granted on February 27, 2025 vest on February 27, 2028. The 98,549 RSUs reported on this Form 4 vest as follows: 32,851 vest on February 28, 2027, 32,849 vest on February 28, 2028 and 32,849 vest on February 28, 2029.

SEC source: 0001911538-26-000006 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 150,005

F1 · shares: On February 27, 2026 the reporting person's restricted stock units automatically vested 19,074 shares. 7,506 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.

F2 · balance_after: Includes 53,550 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 15,406 granted on February 22, 2024 that vest on February 22, 2027; 19,072 granted on February 27, 2025 that vest on February 27, 2027 and 19,072 granted on February 27, 2025 vest on February 27, 2028.

SEC source: 0001911538-26-000004 · primarydocument.xml · nonDerivative · entry 2

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 157,511

F3 · shares: On February 23, 2026 the reporting person's restricted stock units automatically vested 28,211 shares. 11,102 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.

F4 · balance_after: Includes 72,624 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 15,406 granted on February 22, 2024 that vest on February 22, 2027; 19,074 granted on February 27, 2025 that vest on February 27, 2026; 19,072 granted on February 27, 2025 that vest on February 27, 2027 and 19,072 granted on February 27, 2025 vest on February 27, 2028.

SEC source: 0001911538-26-000004 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 168,613

F1 · shares: On February 22, 2026 the reporting person's restricted stock units automatically vested 15,406 shares. 6,063 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.

F2 · balance_after: Includes 100,835 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 28,211 granted on February 23, 2023 that vest on February 23, 2026; 15,406 granted on February 22, 2024 that vest on February 22, 2027; 19,074 granted on February 27, 2025 that vest on February 27, 2026; 19,072 granted on February 27, 2025 that vest on February 27, 2027 and 19,072 granted on February 27, 2025 vest on February 27, 2028.

SEC source: 0001911538-26-000002 · primarydocument.xml · nonDerivative · entry 4

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 174,676

F5 · shares: Represents shares earned in connection with the performance-based stock units previously granted and unreportable on February 23, 2023 pursuant to the issuer's long-term incentive plan. Shares were earned based upon the level of attainment of certain performance objectives and continued employment. These shares fully vested on February 18, 2026 following certification by the Issuer's Compensation & Talent Development Committee.

F2 · balance_after: Includes 116,241 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 28,211 granted on February 23, 2023 that vest on February 23, 2026; 15,406 granted on February 22, 2024 that vest on February 22, 2026; 15,406 granted on February 22, 2024 that vest on February 22, 2027; 19,074 granted on February 27, 2025 that vest on February 27, 2026; 19,072 granted on February 27, 2025 that vest on February 27, 2027 and 19,072 granted on February 27, 2025 vest on February 27, 2028.

SEC source: 0001911538-26-000002 · primarydocument.xml · nonDerivative · entry 3

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,570

F4 · shares: Represents shares required to satisfy tax withholding obligations for dividend equivalents accrued of 5,102 shares in connection with performance-based stock units granted to the Reporting Person on February 23, 2023.

F2 · balance_after: Includes 116,241 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 28,211 granted on February 23, 2023 that vest on February 23, 2026; 15,406 granted on February 22, 2024 that vest on February 22, 2026; 15,406 granted on February 22, 2024 that vest on February 22, 2027; 19,074 granted on February 27, 2025 that vest on February 27, 2026; 19,072 granted on February 27, 2025 that vest on February 27, 2027 and 19,072 granted on February 27, 2025 vest on February 27, 2028.

SEC source: 0001911538-26-000002 · primarydocument.xml · nonDerivative · entry 2

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 162,018

F3 · shares: Represents shares required to satisfy tax withholding obligations in connection with the vesting of 14,106 shares of performance-based stock units granted to the Reporting Person on February 23, 2023.

F2 · balance_after: Includes 116,241 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 28,211 granted on February 23, 2023 that vest on February 23, 2026; 15,406 granted on February 22, 2024 that vest on February 22, 2026; 15,406 granted on February 22, 2024 that vest on February 22, 2027; 19,074 granted on February 27, 2025 that vest on February 27, 2026; 19,072 granted on February 27, 2025 that vest on February 27, 2027 and 19,072 granted on February 27, 2025 vest on February 27, 2028.

SEC source: 0001911538-26-000002 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 165,453

F1 · shares: Represents shares from the settlement of dividend equivalents that accrued on the performance-based stock units prior to vesting and granted to the Reporting Person on February 23, 2023.

F2 · balance_after: Includes 116,241 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 28,211 granted on February 23, 2023 that vest on February 23, 2026; 15,406 granted on February 22, 2024 that vest on February 22, 2026; 15,406 granted on February 22, 2024 that vest on February 22, 2027; 19,074 granted on February 27, 2025 that vest on February 27, 2026; 19,072 granted on February 27, 2025 that vest on February 27, 2027 and 19,072 granted on February 27, 2025 vest on February 27, 2028.

SEC source: 0001562180-25-005841 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 160,351

F1 · price: This transaction was executed in multiple trades at prices ranging from $53.39 to $53.67. The price reported above reflects the weighted-average sale price. The reporting person herby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

F2 · balance_after: Includes 116,241 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 28,211 granted on February 23, 2023 that vest on February 23, 2026; 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027 and 57,218 granted on February 27, 2025 of which 19,074 vest on February 27, 2026, 19,072 vest on February 27, 2027 and 19,072 vest on February 27, 2028.

SEC source: 0001562180-25-004246 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 180,351

F1 · shares: On May 23, 2025 the reporting person's restricted stock units automatically vested 23,132 shares. 9,103 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.

F2 · balance_after: Includes 116,241 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 28,211 granted on February 23, 2023 that vest on February 23, 2026; 46,219 granted on February 22, 2024 of which 15,407 vested on February 22, 2025, 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027 and 57,218 granted on February 27, 2025 of which 19,074 vest on February 27, 2026, 19,072 vest on February 27, 2027 and 19,072 vest on February 27, 2028.

SEC source: 0001562180-25-001862 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,454

F1 · balance_after: Includes 139,373 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 23,132 granted on May 23, 2022 that vest on May 23, 2025; 28,211 granted on February 23, 2023 that vest on February 23, 2026 and 46,219 granted on February 22, 2024 of which 15,407 vested on February 22, 2025, 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027. The 57,218 RSUs reported on this Form 4 vest as follows: 19,074 vest on February 27, 2026, 19,072 vest on February 27, 2027 and 19,072 vest on February 27, 2028.

SEC source: 0001562180-25-001801 · primarydocument.xml · nonDerivative · entry 4

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 132,236

F5 · shares: Represents shares from the settlement of dividend equivalents that accrued on the performance-based stock units prior to vesting and granted to the Reporting Person on May 23, 2022.

F2 · balance_after: Includes 82,155 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 23,132 granted on May 23, 2022 that vest on May 23, 2025; 28,211 granted on February 23, 2023 that vest on February 23, 2026 and 46,219 granted on February 22, 2024 of which 15,407 vested on February 22, 2025, 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027.

SEC source: 0001562180-25-001801 · primarydocument.xml · nonDerivative · entry 3

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 122,895

F4 · shares: Represents shares earned in connection with the performance-based stock units previously granted and unreportable on May 23, 2022 pursuant to the issuer's long-term incentive plan. Shares were earned based upon the level of attainment of certain performance objectives and continued employment. These shares fully vested on February 26, 2025 following certification by the Issuer's Compensation & Talent Development Committee.

F2 · balance_after: Includes 82,155 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 23,132 granted on May 23, 2022 that vest on May 23, 2025; 28,211 granted on February 23, 2023 that vest on February 23, 2026 and 46,219 granted on February 22, 2024 of which 15,407 vested on February 22, 2025, 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027.

SEC source: 0001562180-25-001801 · primarydocument.xml · nonDerivative · entry 2

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 86,346

F3 · shares: Represents shares required to satisfy tax withholding obligations in connection with the vesting of 36,549 shares of performance-based stock units granted to the Reporting Person on May 23, 2022.

F2 · balance_after: Includes 82,155 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 23,132 granted on May 23, 2022 that vest on May 23, 2025; 28,211 granted on February 23, 2023 that vest on February 23, 2026 and 46,219 granted on February 22, 2024 of which 15,407 vested on February 22, 2025, 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027.

SEC source: 0001562180-25-001801 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 100,729

F1 · shares: Represents shares required to satisfy tax withholding obligations for dividend equivalents accrued of 9,341 shares in connection with performance-based stock units granted to the Reporting Person on May 23, 2022.

F2 · balance_after: Includes 82,155 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 23,132 granted on May 23, 2022 that vest on May 23, 2025; 28,211 granted on February 23, 2023 that vest on February 23, 2026 and 46,219 granted on February 22, 2024 of which 15,407 vested on February 22, 2025, 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027.

SEC source: 0001562180-25-001646 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,405

F1 · shares: Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 15,407 shares of restricted stock units granted to the reporting person on February 22, 2024.

F2 · balance_after: Includes 82,155 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 23,132 granted on May 23, 2022 that vest on May 23, 2025; 28,211 granted on February 23, 2023 that vest on February 23, 2026 and 46,219 granted on February 22, 2024 of which 15,407 vested on February 22, 2025, 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027.

SEC source: 0001562180-24-004446 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 110,468

F1 · shares: Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 10,640 shares of restricted stock units granted to the reporting person on May 23, 2022.

F2 · balance_after: Includes 97,562 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 23,132 granted on May 23, 2022 that vest on May 23, 2025; 28,211 granted on February 23, 2023 that vest on February 23, 2026 and 46,219 granted on February 22, 2024 of which 15,407 vest on February 22, 2025, 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027.

SEC source: 0001562180-24-001761 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 114,655

F1 · balance_after: Includes 108,202 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 10,640 granted on May 23, 2022 that vest on May 23, 2024, 23,132 granted on May 23, 2022 that vest on May 23, 2025 and 28,211 granted on February 23, 2023 that vest on February 23, 2026. The 46,219 RSUs reported on this Form 4 vest as follows: 15,407 vest on February 22, 2025, 15,406 vest on February 22, 2026 and 15,406 vest on February 22, 2027.

SEC source: 0001562180-23-004453 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,436

F1 · shares: Represents shares withheld by the issuer to satisfy tax withholding obligations in connection with the vesting 10,641 shares of restricted stock units granted to the reporting person on May 23, 2022.

F2 · balance_after: Includes 61,983 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 10,640 granted on May 23, 2022 that vest on May 23, 2024, 23,132 granted on May 23, 2022 that vest on May 23, 2025 and 28,211 granted on February 23, 2023 that vest on February 23, 2026.

SEC source: 0001562180-23-001912 · primarydocument.xml · derivative · entry 2

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 107,129

Underlying: Class A Ordinary Shares · 107,129 shares

Expires 2033-02-23

F2 · derivative.exercise_date: Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 35,711 vest February 23, 2024, 35,709 vest February 23, 2025 and 35,709 vest February 23, 2026.

SEC source: 0001562180-23-001912 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 72,624

F1 · balance_after: Includes 72,624 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 10,641 granted on May 23, 2022 that vest on May 23, 2023, 10,640 granted on May 23, 2022 that vest on May 23, 2024 and 23,132 granted on May 23, 2022 that vest on May 23, 2025. The 28,211 RSUs reported on this Form 4 vest on February 23, 2026.

SEC source: 0001562180-22-004937 · primarydocument.xml · derivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,191

Underlying: Class A Ordinary Shares · 96,191 shares

Expires 2032-05-23

F1 · derivative.exercise_price: The transactions reported herein reflect a one-time stock option exercise price adjustment effective June 6, 2022, related to a special dividend of $5.20 per share and pursuant to the adjustment provisions of the LyondellBasell Industries Long Term Incentive Plan, and are being reported in this manner solely to comply with the technical reporting requirements under Section 16(a) of the Securities Exchange Act of 1934. Pursuant to the adjustment, the exercise price of the Stock Options (Right to buy) has been amended to reduce such exercise price by the amount of the special dividend ($5.20). There have been no other changes to the terms of the Stock Options (Right to buy).

F1 · shares: The transactions reported herein reflect a one-time stock option exercise price adjustment effective June 6, 2022, related to a special dividend of $5.20 per share and pursuant to the adjustment provisions of the LyondellBasell Industries Long Term Incentive Plan, and are being reported in this manner solely to comply with the technical reporting requirements under Section 16(a) of the Securities Exchange Act of 1934. Pursuant to the adjustment, the exercise price of the Stock Options (Right to buy) has been amended to reduce such exercise price by the amount of the special dividend ($5.20). There have been no other changes to the terms of the Stock Options (Right to buy).

F2 · derivative.exercise_date: This stock option award was previously reported as an option relating to 96,191 shares of the Issuer's Stock Options (Right to Buy) at an exercise price of $106.71 per share and was adjusted as a result of the special dividend.

F1 · derivative.underlying_shares: The transactions reported herein reflect a one-time stock option exercise price adjustment effective June 6, 2022, related to a special dividend of $5.20 per share and pursuant to the adjustment provisions of the LyondellBasell Industries Long Term Incentive Plan, and are being reported in this manner solely to comply with the technical reporting requirements under Section 16(a) of the Securities Exchange Act of 1934. Pursuant to the adjustment, the exercise price of the Stock Options (Right to buy) has been amended to reduce such exercise price by the amount of the special dividend ($5.20). There have been no other changes to the terms of the Stock Options (Right to buy).

SEC source: 0001562180-22-004389 · primarydocument.xml · derivative · entry 3

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,191

Underlying: Class A Ordinary Shares · 96,191 shares

Expires 2032-05-23

F3 · derivative.exercise_date: Granted pursuant to the issuer's long-term incentive plan. Award vests as follows: 32,065 vest May 23, 2023, 32,063 vest May 23, 2024 and 32,063 vest May 23, 2025.

SEC source: 0001562180-22-004389 · primarydocument.xml · nonDerivative · entry 2

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 44,413

F2 · balance_after: RSUs granted pursuant to the issuer's long-term incentive plan on May 23, 2022 that vest as follows: 14,141 vest on May 23, 2023 and 14,140 vest on May 23, 2024.

SEC source: 0001562180-22-004389 · primarydocument.xml · nonDerivative · entry 1

Vanacker Peter Z. E. · CIK 0001911538 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,132

F1 · balance_after: Represents restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan on May 23, 2022 that vest on May 23, 2025.