Westlake (WLK) executive compensation, 2026 proxy

Jean-Marc Gilson, President, Chief Executive Officer and Director, was paid $6.4M in 2025, up 51% from $4.3M the year before. The CEO-to-median-employee pay ratio was 86:1, on median employee pay of $78,052.

Filed
April 2, 2026
Annual meeting
May 14, 2026
Pay year
2025
Named executives
5
CEO total pay
$6.4M+51% vs prior year
CEO to median employee
86:1median $78,052
CEO pay in equity
62%$4M in awards
Prior say-on-pay support
96%of votes cast
CEO Total Compensation
$6,423,651For fiscal year 2025
Consultant Fees
$227,000For compensation advisory services

How Gilson was paid

$6.4M in total for 2025, as reported in the Summary Compensation Table. Equity awards are valued at grant, not at what they turned out to be worth.

Salary20%Stock awards47%Option awards15%Non-equity incentive17%All other compensation1%

Named executive officers

ExecutiveTotal
Albert ChaoExecutive Chairman$6,663,341
James ChaoSenior Chairman$5,586,657
Jean-Marc GilsonPresident, Chief Executive Officer and Director$6,423,651
M. Steven BenderExecutive Vice President and Chief Financial Officer$3,911,710
Robert F. BuesingerExecutive Vice President, Performance and Essential Materials Segment Head$4,529,962

What changed and why

  • $6.4MPresident and CEO Jean-Marc Gilson received total compensation of $6,423,651 in fiscal year 2025.
  • Willis Towers Watson served as the independent compensation consultant to the committee for 2025.
  • The compensation committee used a peer group of companies in the chemicals and building products industries.
  • 96%More than 96 percent of votes supported the say-on-pay proposal at the 2023 annual meeting.

About this page

Figures are automated and can be wrong; check the filing for the exact numbers. Totals follow SEC rules, which value stock and option awards at grant. Read the DEF 14A proxy statement for footnotes and the compensation committee's full reasoning.