| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Foley Kimberly A | EVP, Global O&P and Refining | 4TH FLOOR, ONE VINE STREET, LONDON, UNITED KINGDOM | /s/ Lara A. Mason, Attorney-in-Fact | 03 Mar 2026 | 0001791947 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LYB | Class A Ordinary Shares | Tax liability | $62,524 | -1,087 | -1.6% | $57.52 | 67,239 | 27 Feb 2026 | Direct | F1, F2 |
| transaction | LYB | Class A Ordinary Shares | Award | $0 | +23,052 | +34% | $0.000000 | 90,291 | 28 Feb 2026 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | On February 27, 2026 the reporting person's restricted stock units automatically vested 4,462 shares. 1,087 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations. |
| F2 | Includes 12,287 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 3,365 granted on February 22, 2024 that vest on February 22, 2027; 4,461 granted on February 27, 2025 that vest on February 27, 2027 and 4,461 granted on February 27, 2025 that vest on February 27, 2028. |
| F3 | Includes 35,339 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 3,365 granted on February 22, 2024 that vest on February 22, 2027; 4,461 granted on February 27, 2025 that vest on February 27, 2027 and 4,461 granted on February 27, 2025 that vest on February 27, 2028. The 23,052 RSUs reported on this Form 4 vest as follows: 7,684 vest on February 28, 2027, 7,684 vest on February 28, 2028 and 7,684 vest on February 28, 2029. |