Dale D. Friedrichs - Oct 15, 2025 Form 4 Insider Report for LyondellBasell Industries N.V. (LYB)

Role: EVP, Ops Excellence, HSE
Signature: /s/ Lara A. Mason, Attorney-in-Fact
Stock symbol: LYB
Transactions as of: Oct 15, 2025
Transactions value $: -$3,460
Form type: 4
Date filed: 10/17/2025, 04:44 PM
Previous filing: Mar 3, 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Friedrichs Dale D	EVP, Ops Excellence, HSE	4TH FLOOR, ONE VINE STREET, LONDON, UNITED KINGDOM	/s/ Lara A. Mason, Attorney-in-Fact	2025-10-17	0001697503

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	LYB	Class A Ordinary Shares	Tax liability	-$3.46K	-74	-0.16%	$46.76	47.5K	Oct 15, 2025	Direct	F1, F2

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

Explanation of Responses:

Id	Content
F1	On October 15, 2025 the reporting person's restricted stock units automatically vested 188 shares. 74 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.
F2	Includes 18,441 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 4,296 granted on February 23, 2023 that vest on February 23, 2026; 7,285 granted on February 22, 2024 of which 2,429 vested on February 22, 2025, 2,428 vest on February 22, 2026; 2,428 vest on February 22, 2027 and 9,289 granted on February 27, 2025 of which 3,097 vest on February 27, 2026, 3,096 vest on February 27, 2027 and 3,096 vest on February 27, 2028.

Content

On October 15, 2025 the reporting person's restricted stock units automatically vested 188 shares. 74 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.

Includes 18,441 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 4,296 granted on February 23, 2023 that vest on February 23, 2026; 7,285 granted on February 22, 2024 of which 2,429 vested on February 22, 2025, 2,428 vest on February 22, 2026; 2,428 vest on February 22, 2027 and 9,289 granted on February 27, 2025 of which 3,097 vest on February 27, 2026, 3,096 vest on February 27, 2027 and 3,096 vest on February 27, 2028.