LyondellBasell director granted 2,321 RSUs

LyondellBasell Industries N.V. director Rita E. Griffin reported routine equity compensation and related tax withholding.

Rhea-AI Filing Summary

LyondellBasell Industries N.V. director Rita E. Griffin reported routine equity compensation and related tax withholding. On May 21, 2026, she received a grant of 2,321 Class A Ordinary Shares in the form of restricted stock units at no cash cost, scheduled to vest on May 21, 2027.

On May 22, 2026, 2,917 previously granted RSUs vested automatically, and 639 shares were withheld by the issuer at $69.72 per share to cover tax withholding obligations, not as an open-market sale. After these transactions, she directly held 7,354 Class A shares, plus 5,238 RSUs outstanding under the long-term incentive plan.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Griffin Rita E

Role Director

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Class A Ordinary Shares	639	$69.72	$45K
Grant/Award	Class A Ordinary Shares	2,321	$0.00	$0.00

Holdings After Transaction: Class A Ordinary Shares — 7,354 shares (Direct)

Footnotes (3)

1. F1. 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. F2. On May 22, 2026 the reporting person's restricted stock units automatically vested 2,917 shares. 639 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.
3. F3. 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 grant: 2,321 shares Tax-withheld shares: 639 shares Withholding price: $69.72 per share +3 more

6 metrics

RSU grant 2,321 shares Restricted stock units granted on May 21, 2026, vest May 21, 2027

Tax-withheld shares 639 shares Withheld by issuer on May 22, 2026 for tax obligations

Withholding price $69.72 per share Value used for 639-share tax withholding

Shares after withholding 7,354 shares Class A Ordinary Shares directly held following transactions

RSUs outstanding 5,238 RSUs Restricted stock units under long-term incentive plan after events

Vested RSUs 2,917 RSUs RSUs that automatically vested on May 22, 2026

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, including 2,917 that vest on May 22, 2026"

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

"639 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""

tax-withholding disposition financial

"transaction_action: "tax-withholding disposition""

A tax-withholding disposition is an event or transaction—such as selling or transferring securities, exercising options, or receiving compensation—that triggers a requirement to hold back part of the payment and remit it to tax authorities. It matters to investors because it reduces the cash they receive immediately and can change the timing and amount of taxable income, like a cashier taking a portion of your sale proceeds to pay taxes before you get the rest.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transactions did LyondellBasell (LYB) director Rita Griffin report?

Rita Griffin reported a grant of 2,321 restricted stock units and a tax-related share withholding of 639 shares. These events reflect routine equity compensation and tax settlement, rather than open-market buying or selling of LyondellBasell Class A Ordinary Shares.

How many LyondellBasell (LYB) shares were withheld for taxes in this Form 4?

The filing shows 639 Class A Ordinary Shares were withheld at $69.72 per share. These shares were retained by the issuer to satisfy tax withholding obligations when 2,917 previously granted restricted stock units vested on May 22, 2026.

What RSU award did Rita Griffin receive from LyondellBasell (LYB)?

Rita Griffin received 2,321 restricted stock units as a grant under LyondellBasell’s long-term incentive plan. These RSUs are scheduled to vest on May 21, 2027, representing additional future shares if vesting conditions are met and taxes are satisfied at that time.

How many LyondellBasell (LYB) shares does Rita Griffin hold after these transactions?

After the reported transactions, Rita Griffin directly held 7,354 Class A Ordinary Shares. She also had 5,238 restricted stock units outstanding under the company’s long-term incentive plan, including awards scheduled to vest in May 2026 and May 2027.

Were the LyondellBasell (LYB) insider transactions open-market sales or routine tax withholding?

The disposition involved 639 shares withheld by LyondellBasell to satisfy tax withholding obligations upon RSU vesting. This is described as a tax-withholding disposition, not an open-market sale, and reflects standard treatment of equity compensation for tax purposes.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/26/2026 - 04:06 PM Learn about SEC filing dates

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^*

Griffin Rita E

(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	7,993(1)	D
Class A Ordinary Shares	05/22/2026		F		639(2)	D	$69.72	7,354(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. 639 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)