Form 4: LYB officer direct purchase; total holdings 67,687.547

Rhea-AI Filing Summary

LyondellBasell Industries (LYB) executive vice president, Global O&P and Refining, reported an open‑market purchase of 5,661 Class A ordinary shares on 11/12/2025 at a $43.5649 weighted‑average price. Following this transaction, direct beneficial ownership stands at 67,687.547 shares.

The filing notes the trade was executed in multiple lots between $43.45 and $43.65. Reported holdings include 25,680 restricted stock units granted under the long‑term incentive plan with scheduled vesting dates from February 2026 through February 2028.

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Foley Kimberly A

(Last) (First) (Middle)

4TH FLOOR

ONE VINE STREET

(Street)

LONDON X0 W1J 0AH

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
LyondellBasell Industries N.V. [ LYB ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP, Global O&P and Refining

3. Date of Earliest Transaction (Month/Day/Year)
11/12/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Class A Ordinary Shares	11/12/2025	11/12/2025	P		5,661	A	$43.5649(1)	67,687.547(2)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. This transaction was executed in multiple trades at prices ranging from $ 43.45 USD to $ 43.65 USD. The price reported above reflects the weighted-average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer, or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected.

2. Includes 25,680 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 5,566 granted on February 23, 2023 that vest on February 23, 2026; 10,095 granted on February 22, 2024 of which 3,365 vested on February 22, 2025, 3,365 vest on February 22, 2026; 3,365 vest on February 22, 2027 and 13,384 granted on February 27, 2025 of which 4,462 vest on February 27, 2026, 4,461 vest on February 27, 2027 and 4,461 vest on February 27, 2028.

Remarks:

	/s/ Lara A. Mason, Attorney-in-Fact	11/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did LYB disclose in this Form 4?

An EVP purchased 5,661 Class A ordinary shares on 11/12/2025 at a $43.5649 weighted‑average price.

How many LYB shares does the reporting person now hold?

Direct beneficial ownership is 67,687.547 shares after the reported transaction.

What was the trade price range for the LYB transaction?

Multiple trades were executed between $43.45 and $43.65.

Does the total include restricted stock units (RSUs)?

Holdings include 25,680 RSUs granted under the long‑term incentive plan with vesting from February 2026 to February 2028.

What is the reporting person’s role at LYB?

The filer is an Officer, serving as EVP, Global O&P and Refining.

Was this a direct or indirect holding at LYB?

The reported ownership is Direct (D).