LyondellBasell (LYB) EVP granted 12,475 shares, withholds stock for taxes

Rhea-AI Filing Summary

LyondellBasell Industries N.V. executive vice president Yvonne van der Laan reported equity compensation activity in Class A ordinary shares. On February 28, 2026, she acquired 12,475 shares at $0 per share through a grant described as a grant, award, or other acquisition. A footnote explains these 12,475 restricted stock units are scheduled to vest in three installments in 2027, 2028, and 2029 under the long-term incentive plan.

On February 27, 2026, 2,146 restricted stock units automatically vested, and 1,052 shares were disposed of at $57.52 per share to satisfy the issuer’s tax withholding obligations, rather than a discretionary market sale. After these transactions, the Form 4 reports updated direct share and restricted stock unit holdings for the executive.

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

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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^*

van der Laan Yvonne

(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, Circular & Low Carbon Sol

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2026

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	02/27/2026		F		1,052(1)	D	$57.52	12,258(2)	D
Class A Ordinary Shares	02/28/2026		A		12,475	A	$0.00	24,733(3)	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. On February 27, 2026 the reporting person's restricted stock units automatically vested 2,146 shares. 1,052 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.

2. Includes 5,690 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 1,400 granted on February 22, 2024 that vest on February 22, 2027; 2,145 granted on February 27, 2025 that vest on February 27, 2027 and 2,145 granted on February 27, 2025 that vest on February 27, 2028.

3. Includes 18,165 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 1,400 granted on February 22, 2024 that vest on February 22, 2027; 2,145 granted on February 27, 2025 that vest on February 27, 2027 and 2,145 granted on February 27, 2025 that vest on February 27, 2028. The 12,475 RSUs reported on this Form 4 vest as follows: 4,159 vest on February 28, 2027, 4,158 vest on February 28, 2028 and 4,158 vest on February 28, 2029.

Remarks:

	/s/ Lara A. Mason, Attorney-in-Fact	03/03/2026
	** Signature of Reporting Person	Date
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FAQ

What insider transactions did LYB executive Yvonne van der Laan report on this Form 4?

Yvonne van der Laan reported an equity grant and a tax-related share disposition. She received 12,475 Class A ordinary shares at $0 via an award and had 1,052 shares withheld at $57.52 to cover tax obligations on vested restricted stock units.

Was the LYB insider’s share disposition on this Form 4 an open market sale?

No, the 1,052-share disposition was for tax withholding. Shares were withheld by LyondellBasell to satisfy tax obligations when 2,146 restricted stock units vested, rather than being sold at the insider’s discretion in the open market.

How many LyondellBasell shares did the LYB executive acquire through awards?

The executive acquired 12,475 Class A ordinary shares at $0 per share as a grant. This reflects a long-term incentive award, with the related restricted stock units scheduled to vest in stages from February 2027 through February 2029 under the company’s incentive plan.

What is the vesting schedule for the new LYB restricted stock units reported?

The 12,475 restricted stock units vest over three years. According to the filing, 4,159 units vest on February 28, 2027, 4,158 vest on February 28, 2028, and another 4,158 vest on February 28, 2029 under the long-term incentive plan.

How many restricted stock units does the LYB executive hold after these transactions?

The filing notes a total of 18,165 restricted stock units under the long-term incentive plan. This includes prior grants from February 2024 and February 2025, plus the 12,475 new units that vest in annual tranches from 2027 through 2029.

What role does the reporting person hold at LyondellBasell (LYB)?

The reporting person, Yvonne van der Laan, serves as Executive Vice President, Circular & Low Carbon Solutions. The reported equity grant and tax-withholding share disposition relate to her position and participation in LyondellBasell’s long-term incentive compensation programs.