LyondellBasell director Karlin acquires 781 shares

The director had elected to receive stock instead of cash for her annual retainer, which is paid in quarterly installments.

Rhea-AI Filing Summary

LyondellBasell Industries N.V. director Bridget E. Karlin acquired 781 Class A ordinary shares on September 30, 2026, as payment of her annual retainer in stock instead of cash. The retainer is paid quarterly, and the shares were calculated using a $61.22 average of daily closing prices over the applicable quarter. She also had 194 shares delivered or withheld for payment of exercise price or tax liability at $57.47 per share. A footnote identifies 2,321 restricted stock units that vest May 21, 2027.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider Karlin Bridget E

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Class A Ordinary Shares F1, F2	781	$0.00	$0.00
Exercise Price or Tax Liability	Class A Ordinary Shares F2	194	$57.47	$11K

Holdings After Transaction: Class A Ordinary Shares — 7,834 shares (Direct)

Footnotes (2)

1. F1. Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for her annual retainer, which is paid in quarterly installments. The number of shares issued was calculated based on $61.22, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.
2. F2. 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

Class A ordinary shares acquired: 781 shares Average daily closing price: $61.22 Shares delivered or withheld: 194 shares +3 more

6 metrics

Class A ordinary shares acquired 781 shares Annual retainer stock acquisition on September 30, 2026

Average daily closing price $61.22 Basis used to calculate the retainer shares over the applicable quarter

Shares delivered or withheld 194 shares For payment of exercise price or tax liability

Reported per-share price $57.47 per share Associated with the 194 shares delivered or withheld

Restricted stock units 2,321 RSUs Granted pursuant to the issuer's long-term incentive plan

RSU vesting date May 21, 2027 Vesting date for the identified restricted stock units

Key Terms

annual retainer, restricted stock units, long-term incentive plan

3 terms

annual retainer financial

"her annual retainer, which is paid in quarterly installments"

restricted stock units financial

"2,321 restricted stock units ("RSUs") granted"

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

"granted pursuant to the issuer's long-term incentive plan"

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.

FAQ

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

How many LYB shares did director Bridget E. Karlin acquire?

She acquired 781 Class A ordinary shares on September 30, 2026, for her annual retainer in lieu of cash. The number of shares was calculated using the $61.22 average of the issuer's daily closing prices over the applicable quarter.

What happened to 194 LYB shares reported for Bridget E. Karlin?

194 shares were delivered or withheld for payment of exercise price or tax liability at a reported price of $57.47 per share.

When do Bridget E. Karlin's LYB restricted stock units vest?

The footnote identifies 2,321 restricted stock units granted under the issuer's long-term incentive plan that vest on May 21, 2027.

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

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 10/02/2026 - 04:03 PM Accepted by SEC EDGAR 10/02/2026 - 04:02 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^*

Karlin Bridget E

(Last) (First) (Middle)

4TH FLOOR

ONE VINE STREET

(Street)

LONDON UNITED KINGDOM 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)
09/30/2026

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	09/30/2026		A		781(1)	A	$0.00	8,028(2)	D
Class A Ordinary Shares	09/30/2026		F		194	D	$57.47	7,834(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. Prior to the beginning of the year, the reporting person elected to receive common stock in lieu of cash for her annual retainer, which is paid in quarterly installments. The number of shares issued was calculated based on $61.22, which is the average of the daily closing prices of the issuer's shares over the applicable quarter.

2. 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	10/02/2026
	** 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)