$WLK SEC Filings

Filed On	Filing
29 Sep 2026	8-K: Cost Associated with Exit or Disposal Activities; Regulation FD Disclosure HOUSTON, September 29, 2026 — Westlake Corporation (NYSE: WLK) (“Westlake” or the “Company”) announced today that, in light of challenging market conditions, the Company is taking action to improve profitability by closing its polyvinyl ...
01 Sep 2026	Form 4: Darby Tommy, VP and CAO Granted 1,791 Restricted Stock Units
31 Aug 2026	Form 3: Darby Tommy, VP and CAO No securities owned
31 Aug 2026	8-K: Departure/Election of Directors or Officers; Compensation
21 Aug 2026	NYSE TEXAS CERTIFICATION
21 Aug 2026	8-A12B
17 Aug 2026	Form 4: Sheets Jeffrey Wayne, Director Granted 2,184 Restricted Stock Units
17 Aug 2026	Form 4: Sabat Carolyn Chao, Director Granted 2,184 Restricted Stock Units
17 Aug 2026	Form 4: Patel Bhavesh V., Director Granted 2,184 Restricted Stock Units
17 Aug 2026	Form 4: Northcutt R Bruce, Director Granted 2,184 Restricted Stock Units
17 Aug 2026	Form 4: Mccollum Mark A, Director Granted 2,184 Restricted Stock Units
17 Aug 2026	Form 4: Lubel Kimberly S, Director Granted 2,184 Restricted Stock Units
17 Aug 2026	Form 4: Graff Michael J, Director Granted 2,184 Restricted Stock Units
17 Aug 2026	Form 4: Cregg Roger A, Director Granted 2,184 Restricted Stock Units
17 Aug 2026	Form 4: Chao David Tsung-Hung, Director Granted 2,184 Restricted Stock Units
17 Aug 2026	Form 4: Chao Catherine T., Director Granted 2,184 Restricted Stock Units
11 Aug 2026	Form 4: Chao Albert, Director Received 38,873 shares by exercise or conversion ($2.4M) · Sold 38,873 shares ($3.12M)
11 Aug 2026	144
10 Aug 2026	Form 4: Sheets Jeffrey Wayne, Director Received 2,168 shares by exercise or conversion
10 Aug 2026	Form 4: Sabat Carolyn Chao, Director Received 2,168 shares by exercise or conversion

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