Westlake Corp (WLK) insider trading
Every open-market stock purchase and sale by Westlake Corp executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Albert Chao (Chair) sold $3.1M in the last 90 days.
- Last insider buy: Robert F. Buesinger (VP), $7.8K, 18 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $10.2M (5 sales). Last close $60.84 on Oct 21, 2026.
Recent WLK insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Aug 31, 2026 | Tommy Darby (C-suite exec) | Bought (not open market) | — |
| Aug 14, 2026 | Mark A McCollum (Insider) | Bought (not open market) | — |
| Aug 14, 2026 | Kimberly S Lubel (Insider) | Bought (not open market) | — |
| Aug 14, 2026 | Roger A Cregg (Insider) | Bought (not open market) | — |
| Aug 14, 2026 | David Tsung-Hung Chao (Insider) | Bought (not open market) | — |
| Aug 14, 2026 | Michael J Graff (Insider) | Bought (not open market) | — |
| Aug 14, 2026 | Catherine T. Chao (Insider) | Bought (not open market) | — |
| Aug 14, 2026 | R Bruce Northcutt (Insider) | Bought (not open market) | — |
| Aug 14, 2026 | Jeffrey Wayne Sheets (Insider) | Bought (not open market) | — |
| Aug 14, 2026 | Carolyn Chao Sabat (Insider) | Bought (not open market) | — |
| Aug 14, 2026 | Bhavesh V. Patel (Insider) | Bought (not open market) | — |
| Aug 11, 2026 | Albert Chao (Chair) | Sold | $2.5M |
| Aug 11, 2026 | Albert Chao (Chair) | Bought (not open market) | $2.4M |
| Aug 11, 2026 | Albert Chao (Chair) | Sold | $597K |
| Aug 11, 2026 | Albert Chao (Chair) | Bought (not open market) | — |
| Aug 8, 2026 | Roger A Cregg (Insider) | Bought (not open market) | — |
| Aug 8, 2026 | Roger A Cregg (Insider) | Bought (not open market) | — |
| Aug 8, 2026 | Catherine T. Chao (Insider) | Bought (not open market) | — |
| Aug 8, 2026 | Catherine T. Chao (Insider) | Bought (not open market) | — |
| Aug 8, 2026 | Jeffrey Wayne Sheets (Insider) | Bought (not open market) | — |
| Aug 8, 2026 | Jeffrey Wayne Sheets (Insider) | Bought (not open market) | — |
| Aug 8, 2026 | Carolyn Chao Sabat (Insider) | Bought (not open market) | — |
| Aug 8, 2026 | Carolyn Chao Sabat (Insider) | Bought (not open market) | — |
| Aug 8, 2026 | R Bruce Northcutt (Insider) | Bought (not open market) | — |
| Aug 8, 2026 | R Bruce Northcutt (Insider) | Bought (not open market) | — |
Who's trading WLK
- Tommy Darby, C-suite exec: other filings, last Aug 31, 2026
- Jeffrey Wayne Sheets, Insider: other filings, last Aug 14, 2026
- Carolyn Chao Sabat, Insider: other filings, last Aug 14, 2026
- Roger A Cregg, Insider: other filings, last Aug 14, 2026
- Catherine T. Chao, Insider: other filings, last Aug 14, 2026
- David Tsung-Hung Chao, Insider: other filings, last Aug 14, 2026
- Bhavesh V. Patel, Insider: other filings, last Aug 14, 2026
- R Bruce Northcutt, Insider: other filings, last Aug 14, 2026
- Kimberly S Lubel, Insider: other filings, last Aug 14, 2026
- Michael J Graff, Insider: other filings, last Aug 14, 2026
- Mark A McCollum, Insider: other filings, last Aug 14, 2026
- Albert Chao, Chair: sold $6.1M (5 sales), last Aug 11, 2026
- Jonathan Baksht, CFO: other filings, last Jun 15, 2026
- Mark Steven Bender, CFO: sold $3.6M (3 sales), last May 13, 2026
- Brian John Powers, VP: other filings, last Apr 2, 2026
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