Trisha L. Conley - 27 Feb 2026 Form 4 Insider Report for LyondellBasell Industries N.V. (LYB)

Role
EVP, People and Culture
Signature
/s/ Lara A. Mason, Attorney-in-Fact
Issuer symbol
LYB
Transactions as of
27 Feb 2026
Net transactions value
-$40,897
Form type
4
Filing time
03 Mar 2026, 16:37:28 UTC
Previous filing
24 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Conley Trisha L EVP, People and Culture 4TH FLOOR, ONE VINE STREET, LONDON, UNITED KINGDOM /s/ Lara A. Mason, Attorney-in-Fact 03 Mar 2026 0001964403

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction LYB Class A Ordinary Shares Tax liability $40,897 -711 -3.7% $57.52 18,698 27 Feb 2026 Direct F1, F2
transaction LYB Class A Ordinary Shares Award $0 +15,068 +81% $0.000000 33,766 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 2,917 shares. 711 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.
F2 Includes 8,097 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 2,265 granted on February 22, 2024 that vest on February 22, 2027; 2,916 granted on February 27, 2025 that vest on February 27, 2027 and 2,916 granted on February 27, 2025 that vest on February 27, 2028.
F3 Includes 23,165 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 2,265 granted on February 22, 2024 that vest on February 22, 2027; 2,916 granted on February 27, 2025 that vest on February 27, 2027 and 2,916 granted on February 27, 2025 that vest on February 27, 2028. The 15,068 RSUs reported on this Form 4 vest as follows: 5,024 vest on February 28, 2027, 5,022 vest on February 28, 2028 and 5,022 vest on February 28, 2029.