Westlake Corporation

Last updated September 27, 2026

Organization details

Legal name
Westlake Corporation
Ownership
Public
Status
Active
Headquarters country
United States
Ticker symbol
WLK
Primary stock exchange
NYSE

Identifiers

SEC CIK
0001262823

Board of directors

Chief executives

Albert Chao · President & CEO
Dates unknown

Board connections

7 of this board's directors also sit on 11 other boards.

Network of Westlake Corporation's board connections Air Products and Chemicals Inc. Air Products and Chemi... Arcosa Inc. Arcosa Inc. Chord Energy Corporation Chord Energy Corporati... Fermi Inc. Fermi Inc. Halliburton Company Halliburton Company ONEOK Inc. ONEOK Inc. PBF Energy Inc. PBF Energy Inc. SLB Limited SLB Limited Seadrill Limited Seadrill Limited Sterling Infrastructure Inc. Sterling Infrastructur... Westlake Chemical Partners LP Westlake Chemical Part... Bhavesh Patel V Bhavesh Patel V James Chao James Chao Jeffrey Wayne Sheets Jeffrey Wayne Sheets Kimberly S. Lubel Kimberly S. Lubel Marius Haas Marius Haas Mark A. Mccollum Mark A. Mccollum Roger A. Cregg Roger A. Cregg Westlake Corporation
Shared director Other board Same sector

Insider trades

All notable trades →

From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.

Bought, last 12 months
$0
0 purchases by 0 insiders
Sold, last 12 months
$10,190,406
9 sales by 3 insiders
Date Insider Transaction Shares Price Value
Aug 11, 2026 Albert Chao Director, Officer (Executive Chairman) Option exercise +38,873 $61.87 $2,404,878
Aug 11, 2026 Albert Chao Director, Officer (Executive Chairman) Open-market sale −7,489 $79.70 $596,873
Aug 11, 2026 Albert Chao Director, Officer (Executive Chairman) Open-market sale −31,384 $80.42 $2,523,901
Aug 8, 2026 Roger A. Cregg Director Option exercise +2,168 — —
Aug 8, 2026 Catherine T. Chao Director Option exercise +2,168 — —
Aug 8, 2026 David Tsung-Hung Chao Director Option exercise +2,168 — —
Aug 8, 2026 Michael J. Graff Director Option exercise +2,168 — —
Aug 8, 2026 Kimberly S. Lubel Director Option exercise +2,168 — —
Aug 8, 2026 Mark A. Mccollum Director Option exercise +2,168 — —
Aug 8, 2026 R. Bruce Northcutt Director Option exercise +2,168 — —
Aug 8, 2026 Carolyn Chao Sabat Director Option exercise +2,168 — —
Aug 8, 2026 Jeffrey Wayne Sheets Director Option exercise +2,168 — —
May 13, 2026 Bender Mark Steven Officer (EVP & CFO) Shares withheld for tax −5,284 $97.34 $514,345
May 12, 2026 Bender Mark Steven Officer (EVP & CFO) Option exercise +13,164 — —
Mar 27, 2026 Buesinger Robert F. Officer (EVP, PEM Segment Head) Open-market sale −4,000 $115.25 $461,000

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