WESTLAKE CORP (WLK) has 21 SEC Form 4 insider filings on record in the last 90 days. Most recent filing: Sept. 1, 2026.
| Date | Insider | Value | Shares | Stake | Pre-planned | Links |
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| Sept. 1, 2026 filed Aug. 31, 2026 | Darby Tommy VP and CAO | $0 | 1,791 | 0% | No | |
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| Aug. 17, 2026 filed Aug. 14, 2026 | Sheets Jeffrey Wayne Director | $0 | 2,184 | 0% | No | |
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| Aug. 17, 2026 filed Aug. 14, 2026 | Sabat Carolyn Chao Director | $0 | 2,184 | 0% | No | |
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| Aug. 17, 2026 filed Aug. 14, 2026 | Patel Bhavesh V. Director | $0 | 2,184 | 0% | No | |
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| Aug. 17, 2026 filed Aug. 14, 2026 | MCCOLLUM MARK A Director | $0 | 2,184 | 0% | No | |
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Showing the 5 most recent of 21 filings in the last 90 days.
Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.
Real-time Telegram alerts the moment a Form 4 is filed. Filings shown here are delayed by 72 hours.
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