| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Hayes Matthew D | SVP & CAO | 4TH FLOOR, ONE VINE STREET, LONDON, UNITED KINGDOM | /s/ Lara A. Mason, Attorney-in-Fact | 16 Oct 2025 | 0002062500 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LYB | Class A Ordinary Shares | Tax liability | $7,108 | -152 | -3% | $46.76 | 4,924 | 15 Oct 2025 | Direct | F1, F2, F3, F4 |
| Id | Content |
|---|---|
| F1 | On October 15, 2025 the reporting person's restricted stock units automatically vested 624 shares. 152 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations. |
| F2 | Includes 2,920 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 417 granted on February 23, 2023 that vest on February 23, 2026; 237 granted on February 22, 2024 that vest on February 22, 2026; 237 granted on February 22, 2024 that vest on February 22, 2027; 307 granted on February 27, 2025 that vest on February 27, 2026; 623 granted on October 15, 2024 that vest on October 15, 2026; 305 granted on February 27, 2025 that vest on February 27, 2027; 305 granted on February 27, 2025 that vest on February 27, 2028 and 489 granted on April 15, 2025 of which 163 vest on April 15, 2026, 163 vest on April 15, 2027 and 163 vest on April 15, 2028. |
| F3 | ESPP purchase of 124.084188 shares for $52.07 per share were allocated on June 30, 2025. |
| F4 | ESPP purchase of 87.325086 shares for $44.14 per share were allocated on September 30, 2025. |