Tracey D. Campbell - 23 Feb 2026 Form 4 Insider Report for LyondellBasell Industries N.V. (LYB)

Role: EVP, Sustainability & Corp Aff
Signature: /s/ Lara A. Mason, Attorney-in-Fact
Issuer symbol: LYB
Transactions as of: 23 Feb 2026
Net transactions value: -$19,264
Form type: 4
Filing time: 24 Feb 2026, 16:27:41 UTC
Previous filing: 20 Feb 2026
Next filing: 03 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

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	24 Feb 2026	0001948900

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	LYB	Class A Ordinary Shares	Tax liability	$19,264	-340	-2.5%	$56.66	13,326	23 Feb 2026	Direct	F1, F2
holding	LYB	Class A Ordinary Shares						5,359	23 Feb 2026	By Spouse

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	On February 23, 2026 the reporting person's restricted stock units automatically vested 1,155 shares. 340 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.
F2	Includes 5,272 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 and 3,067 granted on February 27, 2025 of which 1,023 vest on February 27, 2026, 1,022 vest on February 27, 2027 and 1,022 vest on February 27, 2028.

Content

On February 23, 2026 the reporting person's restricted stock units automatically vested 1,155 shares. 340 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.

Includes 5,272 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 and 3,067 granted on February 27, 2025 of which 1,023 vest on February 27, 2026, 1,022 vest on February 27, 2027 and 1,022 vest on February 27, 2028.