James Malcolm Seward - 27 Feb 2026 Form 4 Insider Report for LyondellBasell Industries N.V. (LYB)

Role
EVP & Chief Innovation Officer
Signature
/s/ Lara A. Mason, Attorney-in-Fact
Issuer symbol
LYB
Transactions as of
27 Feb 2026
Net transactions value
-$59,821
Form type
4
Filing time
03 Mar 2026, 16:40:37 UTC
Previous filing
24 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Seward James Malcolm EVP & Chief Innovation Officer 4TH FLOOR, ONE VINE STREET, LONDON, UNITED KINGDOM /s/ Lara A. Mason, Attorney-in-Fact 03 Mar 2026 0001783902

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction LYB Class A Ordinary Shares Tax liability $59,821 -1,040 -3% $57.52 33,522 27 Feb 2026 Direct F1, F2
transaction LYB Class A Ordinary Shares Award $0 +12,209 +36% $0.000000 45,731 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 2,100 shares. 1,040 shares were withheld by the issuer to satisfy the issuer's tax withholding obligations.
F2 Includes 5,894 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 1,696 granted on February 22, 2024 that vest on February 22, 2027; 2,099 granted on February 27, 2025 that vest on February 27, 2027 and 2,099 granted on February 27, 2025 that vest on February 27, 2028.
F3 Includes 18,103 restricted stock units ("RSUs") granted pursuant to the issuer's long-term incentive plan: 1,696 granted on February 22, 2024 that vest on February 22, 2027; 2,099 granted on February 27, 2025 that vest on February 27, 2027 and 2,099 granted on February 27, 2025 that vest on February 27, 2028. The 12,209 RSUs reported on this Form 4 vest as follows: 4,071 vest on February 28, 2027, 4,069 vest on February 28, 2028 and 4,069 vest on February 28, 2029.