Westlake Corp. insider trading
This tab shows only the shares insiders bought or sold on the open market in the last twelve months (Form 4 codes P and S). Grants, option exercises, shares held back for tax and gifts are left out on purpose, so what is left is insiders trading at the market price like anyone else.
In the last twelve months insiders at Westlake Corp. filed 9 open-market sales worth $10.2 million and 0 open-market purchases, on Form 4 with the SEC. The latest: Chao Albert, Executive Chairman, sold 7,489 shares at $79.70 on 11 August 2026, filed 11 August 2026.
| Traded | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 11 August 2026 | Chao Albert | Executive Chairman | Sale | 7,489 | $79.70 | $596,873 | Form 4 |
| 11 August 2026 | Chao Albert | Executive Chairman | Sale | 31,384 | $80.42 | $2.5 million | Form 4 |
| 27 March 2026 | Buesinger Robert F. | EVP, PEM Segment Head | Sale | 4,000 | $115.25 | $461,000 | Form 4 |
| 27 March 2026 | Bender Mark Steven | EVP & CFO | Sale | 16,413 | $112.53 | $1.8 million | Form 4 |
| 27 February 2026 | Bender Mark Steven | EVP & CFO | Sale | 16,988 | $100.91 | $1.7 million | Form 4 |
| 27 February 2026 | Bender Mark Steven | EVP & CFO | Sale | 421 | $101.52 | $42,738 | Form 4 |
| 22 December 2025 | Chao Albert | Executive Chairman | Sale | 9,711 | $72.82 | $707,136 | Form 4 |
| 22 December 2025 | Chao Albert | Executive Chairman | Sale | 30,604 | $73.80 | $2.3 million | Form 4 |
| 22 December 2025 | Chao Albert | Executive Chairman | Sale | 521 | $74.44 | $38,785 | Form 4 |
A filing with several lines appears once per line.
Source
Form 4 filings on EDGAR for Westlake Corp.: the company's filing index.
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