Jeffrey A. Kaplan - 27 Feb 2026 Form 4 Insider Report for LyondellBasell Industries N.V. (LYB)

Signature
/s/ Lara A. Mason, Attorney-in-Fact
Issuer symbol
LYB
Transactions as of
27 Feb 2026
Net transactions value
-$57,520
Form type
4
Filing time
03 Mar 2026, 16:38:28 UTC
Previous filing
24 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Kaplan Jeffrey A EVP and General Counsel 4TH FLOOR, ONE VINE STREET, LONDON, UNITED KINGDOM /s/ Lara A. Mason, Attorney-in-Fact 03 Mar 2026 0001634184

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction LYB Class A Ordinary Shares Tax liability $57,520 -1,000 -1.2% $57.52 85,471 27 Feb 2026 Direct F1, F2
transaction LYB Class A Ordinary Shares Award $0 +21,203 +25% $0.000000 106,674 28 Feb 2026 Direct F3
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On February 27, 2026 the reporting person's restricted stock units automatically vested 4,105 shares. 1,000 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.
F2 Includes 11,424 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 3,218 granted on February 22, 2024 that vest on February 22, 2027; 4,103 granted on February 27, 2025 that vest on February 27, 2027 and 4,103 granted on February 27, 2025 that vest on February 27, 2028.
F3 Includes 32,627 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 3,218 granted on February 22, 2024 that vest on February 22, 2027; 4,103 granted on February 27, 2025 that vest on February 27, 2027 and 4,103 granted on February 27, 2025 that vest on February 27, 2028. The 21,203 RSUs reported on this Form 4 vest as follows: 7,069 vest on February 28, 2027, 7,067 vest on February 28, 2028 and 7,067 vest on February 28, 2029.