Kimberly A. Foley - 18 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
18 Feb 2026
Net transactions value
+$157,500
Form type
4
Filing time
20 Feb 2026, 17:18:11 UTC
Previous filing
12 Nov 2025
Next filing
24 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Foley Kimberly A EVP, Global O&P and Refining 4TH FLOOR, ONE VINE STREET, LONDON, UNITED KINGDOM /s/ Lara A. Mason, Attorney-in-Fact 20 Feb 2026 0001791947

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction LYB Class A Ordinary Shares Tax liability $40,858 -730 -1.1% $55.97 66,958 18 Feb 2026 Direct F1, F2
transaction LYB Class A Ordinary Shares Tax liability $13,769 -246 -0.37% $55.97 66,712 18 Feb 2026 Direct F2, F3
transaction LYB Class A Ordinary Shares Award $155,765 +2,783 +4.2% $55.97 69,495 18 Feb 2026 Direct F2, F4
transaction LYB Class A Ordinary Shares Award $56,362 +1,007 +1.4% $55.97 70,502 18 Feb 2026 Direct F2, F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares required to satisfy tax withholding obligations in connection with the vesting of 2,783 shares of performance-based stock units granted to the Reporting Person on February 23, 2023.
F2 Includes 25,680 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 5,566 granted on February 23, 2023 that vest on February 23, 2026; 10,095 granted on February 22, 2024 of which 3,365 vested on February 22, 2025, 3,365 vest on February 22, 2026; 3,365 vest on February 22, 2027 and 13,384 granted on February 27, 2025 of which 4,462 vest on February 27, 2026, 4,461 vest on February 27, 2027 and 4,461 vest on February 27, 2028.
F3 Represents shares required to satisfy tax withholding obligations for dividend equivalents accrued of 1,007 shares in connection with performance-based stock units granted to the Reporting Person on February 23, 2023.
F4 Represents shares earned in connection with the performance-based stock units previously granted and unreportable on February 23, 2023 pursuant to the issuer's long-term incentive plan. Shares were earned based upon the level of attainment of certain performance objectives and continued employment. These shares fully vested on February 18, 2026 following certification by the Issuer's Compensation & Talent Development Committee.
F5 Represents shares from the settlement of dividend equivalents that accrued on the performance-based stock units prior to vesting and granted to the Reporting Person on February 23, 2023.