Peter Z. E. Vanacker - 18 Feb 2026 Form 4 Insider Report for LyondellBasell Industries N.V. (LYB)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: LYB
Reported as of: 18 Feb 2026
Net transaction value: +$801,770
SEC form: 4
Accepted by SEC: 20 Feb 2026, 17:21:29 UTC
Prior SEC filing: 15 Aug 2025
Next SEC filing: 24 Feb 2026
Source filing: View source filing
Reporting owner signature: /s/ Lara A. Mason, Attorney-in-Fact

Key filing fact

Peter Z. E. Vanacker filed Form 4 for LyondellBasell Industries N.V. (LYB) on 20 Feb 2026.

Key facts

This page summarizes Peter Z. E. Vanacker's Form 4 filing for LyondellBasell Industries N.V. (LYB).
4 reported transactions and 0 derivative rows are listed below.
Accepted by SEC: 20 Feb 2026, 17:21.

Change

Previous filing in this sequence was filed on 15 Aug 2025.
Current net transaction value: +$801,770.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001911538 Primary reporting owner

Vanacker Peter Z. E.

Relationship: Chief Executive Officer, Director
Address: 4TH FLOOR, ONE VINE STREET, LONDON, UNITED KINGDOM
Signature: /s/ Lara A. Mason, Attorney-in-Fact
Signature date: 20 Feb 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

LYB transaction

Class A Ordinary Shares

Award

Transaction value: $285,559
Shares: +5,102
Change %: +3.2%
Price: $55.97
Shares after: 165,453
Date: 18 Feb 2026
Ownership: Direct
Footnotes: F1, F2

LYB transaction

Class A Ordinary Shares

Tax liability

Transaction value: $192,257
Shares: -3,435
Change %: -2.1%
Price: $55.97
Shares after: 162,018
Date: 18 Feb 2026
Ownership: Direct
Footnotes: F2, F3

LYB transaction

Class A Ordinary Shares

Tax liability

Transaction value: $81,045
Shares: -1,448
Change %: -0.89%
Price: $55.97
Shares after: 160,570
Date: 18 Feb 2026
Ownership: Direct
Footnotes: F2, F4

LYB transaction

Class A Ordinary Shares

Award

Transaction value: $789,513
Shares: +14,106
Change %: +8.8%
Price: $55.97
Shares after: 174,676
Date: 18 Feb 2026
Ownership: Direct
Footnotes: F2, F5

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 5 footnotes

Footnote F1

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.

Footnote F2

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.

Footnote F3

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.

Footnote F4

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.

Footnote F5

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.