| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Campbell Tracey D | EVP, Sustainability & Corp Aff | 4TH FLOOR, ONE VINE STREET, LONDON, UNITED KINGDOM | /s/ Lara A. Mason, Attorney-in-Fact | 03 Mar 2026 | 0001948900 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | LYB | Class A Ordinary Shares | Tax liability | $14,265 | -248 | -1.9% | $57.52 | 13,078 | 27 Feb 2026 | Direct | F1, F2 |
| transaction | LYB | Class A Ordinary Shares | Award | $0 | +5,282 | +40% | $0.000000 | 18,360 | 28 Feb 2026 | Direct | F3 |
| holding | LYB | Class A Ordinary Shares | 6,855 | 27 Feb 2026 | By Spouse |
| Id | Content |
|---|---|
| F1 | On February 27, 2026 the reporting person's restricted stock units automatically vested 1,023 shares. 248 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations. |
| F2 | Includes 4,249 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 2,205 granted on February 22, 2024 of which 735 were deferred on February 22, 2025, 735 were deferred on February 22, 2026; 735 vest on February 22, 2027; 1,022 granted on February 27, 2025 that vest on February 27, 2027 and 1,022 granted on February 27, 2025 that vest on February 27, 2028. |
| F3 | Includes 9,531 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 2,205 granted on February 22, 2024 of which 735 were deferred on February 22, 2025, 735 were deferred on February 22, 2026; 735 vest on February 22, 2027; 1,022 granted on February 27, 2025 that vest on February 27, 2027 and 1,022 granted on February 27, 2025 that vest on February 27, 2028. The 5,282 RSUs reported on this Form 4 vest as follows: 1,762 vest on February 28, 2027, 1,760 vest on February 28, 2028 and 1,760 vest on February 28, 2029. |