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
-
Albert Chao · Director · Executive ChairmanSince 2023
-
Bhavesh Patel V · DirectorSince 2026
-
Carolyn Chao Sabat · DirectorSince 2023
-
Catherine T. Chao · DirectorSince 2023
-
David Tsung-Hung Chao · DirectorSince 2023
-
James Chao · Director · Senior ChairmanSince 2023
-
Jeffrey Wayne Sheets · DirectorSince 2023
-
John Tsung-chen Chao · Director · VP & MD, Westlake InnovationsSince 2023
-
Kimberly S. Lubel · DirectorSince 2023
-
Marius Haas · DirectorSince 2023
-
Mark A. Mccollum · DirectorSince 2023
-
Michael J. Graff · DirectorSince 2023
-
R. Bruce Northcutt · DirectorSince 2023
-
Roger A. Cregg · DirectorSince 2024
Chief executives
Albert Chao
· President & CEO
Dates unknown
Board connections
7 of this board's directors also sit on 11 other boards.
- via Bhavesh Patel V
- via Kimberly S. Lubel
- via Jeffrey Wayne Sheets
- via Marius Haas
- via Bhavesh Patel V
- via Mark A. Mccollum
- via Kimberly S. Lubel
- via Jeffrey Wayne Sheets
- via Mark A. Mccollum
- via Roger A. Cregg
- via James Chao
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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