Director in LyondellBasell (NYSE: LYB) gets RSU award and covers taxes

Rhea-AI Filing Summary

LyondellBasell Industries N.V. director Virginia A. Kamsky reported routine equity compensation activity. On May 21, 2026, she received an award of 2,321 Class A Ordinary Shares as restricted stock units at no cost, scheduled to vest on May 21, 2027. On May 22, 2026, 2,917 restricted stock units vested, and 593 shares were withheld by the company at $69.72 per share to cover tax obligations. After these transactions, she directly holds 9,822 Class A Ordinary Shares, along with unvested RSUs that may deliver additional shares in the future.

Insights

Equity compensation analyst

Routine RSU vesting and tax withholding with no open-market trades.

Director Virginia A. Kamsky received 2,321 Class A Ordinary Shares via a restricted stock unit award, consistent with long-term incentive compensation. The award vests on May 21, 2027 and was granted at a price of $0.00 per share.

On May 22, 2026, 2,917 RSUs vested and 593 shares were withheld at $69.72 per share to satisfy tax obligations, a non-market F-code disposition. Following these events, she holds 9,822 Class A shares directly, indicating a modest, compensation-driven adjustment rather than a discretionary buy or sell.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider KAMSKY VIRGINIA A

Role null

Type	Security	Shares	Price	Value
Tax Withholding	Class A Ordinary Shares	593	$69.72	$41K
Grant/Award	Class A Ordinary Shares	2,321	$0.00	--

Holdings After Transaction: Class A Ordinary Shares — 9,822 shares (Direct, null)

Footnotes (1)

1. Includes 5,238 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,917 that vest on May 22, 2026. The 2,321 RSUs reported on this Form 4 vest on May 21, 2027. On May 22, 2026 the reporting person's restricted stock units automatically vested 2,917 shares. 593 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations. Includes 2,321 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan that vest on May 21, 2027.

Key Figures

RSU award: 2,321 shares Grant price: $0.00 per share Tax-withheld shares: 593 shares +4 more

7 metrics

RSU award 2,321 shares Grant of Class A Ordinary Shares on May 21, 2026

Grant price $0.00 per share Restricted stock unit award to director

Tax-withheld shares 593 shares Withheld to satisfy tax obligations on May 22, 2026

Withholding price $69.72 per share Value used for tax withholding disposition

RSUs vested 2,917 shares Restricted stock units that automatically vested on May 22, 2026

Shares held after transactions 9,822 shares Director’s direct Class A holdings following Form 4 events

Unvested RSUs 2,321 units RSUs scheduled to vest on May 21, 2027

Key Terms

restricted stock units, long-term incentive plan, tax withholding obligations, grant, award, or other acquisition, +1 more

5 terms

restricted stock units financial

"Includes 5,238 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

long-term incentive plan financial

"RSUs granted pursuant to the issuer's long-term incentive plan that vest on May 21, 2027"

A long-term incentive plan is a company program that pays executives or employees with stock, options, or cash tied to multi-year performance goals, where the rewards become theirs only after meeting conditions over time. Think of it as a delayed bonus or retirement-style reward that aligns employees’ interests with shareholders by encouraging them to boost long-term value; investors watch these plans because they affect pay costs, share dilution and management incentives.

tax withholding obligations financial

"593 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations"

grant, award, or other acquisition financial

"transaction_code_description": "Grant, award, or other acquisition""

Payment of exercise price or tax liability by delivering securities financial

"transaction_code_description": "Payment of exercise price or tax liability by delivering securities""

Form 4 Insider Transactions: What Each Field Means →

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^*

KAMSKY VIRGINIA A

(Last) (First) (Middle)

4TH FLOOR

ONE VINE STREET

(Street)

LONDON W1J 0AH

(City) (State) (Zip)

UNITED KINGDOM

(Country)

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/21/2026

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

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

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

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	05/21/2026		A		2,321	A	$0.00	10,415(1)	D
Class A Ordinary Shares	05/22/2026		F		593(2)	D	$69.72	9,822(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. Includes 5,238 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan, including 2,917 that vest on May 22, 2026. The 2,321 RSUs reported on this Form 4 vest on May 21, 2027.

2. On May 22, 2026 the reporting person's restricted stock units automatically vested 2,917 shares. 593 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.

3. Includes 2,321 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan that vest on May 21, 2027.

Remarks:

	/s/ Lara A. Mason, Attorney-in-Fact	05/26/2026
	** 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.
* Form 4: SEC 1474 (03-26)

FAQ

What insider transactions did LYB director Virginia Kamsky report on this Form 4?

Virginia Kamsky reported an award of 2,321 Class A Ordinary Shares as restricted stock units and a withholding of 593 shares for taxes after 2,917 RSUs vested, all related to LyondellBasell’s long-term incentive compensation, with no open-market purchases or sales disclosed.

How many LyondellBasell (LYB) shares does Virginia Kamsky hold after these transactions?

After these transactions, Virginia Kamsky directly holds 9,822 Class A Ordinary Shares of LyondellBasell. This figure reflects the net position following the 2,321-share RSU award and the 593-share tax withholding when 2,917 restricted stock units vested on May 22, 2026.

What is the nature of the 2,321-share award to LYB director Virginia Kamsky?

The 2,321-share award is a grant of restricted stock units under LyondellBasell’s long-term incentive plan. It was reported at a grant price of $0.00 per share and is scheduled to vest on May 21, 2027, providing future share delivery if vesting conditions are met.

Why were 593 LyondellBasell shares withheld in Virginia Kamsky’s Form 4 filing?

The 593 shares were withheld by LyondellBasell to satisfy tax withholding obligations when 2,917 restricted stock units automatically vested on May 22, 2026. This F-code transaction is a standard, non-market tax payment mechanism rather than an open-market sale of shares.

Does Virginia Kamsky’s Form 4 for LYB indicate any open-market buying or selling?

The Form 4 does not show any open-market buying or selling by Virginia Kamsky. It reflects a grant of 2,321 restricted stock units at no cost and a tax-withholding disposition of 593 shares related to RSU vesting, both common equity compensation events.