WLK
Westlake·NYSE
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WLK Filings
Filing Date
Form Description
Form Type
2026-04-06
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-04-06 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-04-06
Form 8-K - Current report
Key Events
2026-04-06 · Key Events
Form 8-K - Current report
2026-04-02
Form 3 - Initial statement of beneficial ownership of securities
Ownership
2026-04-02 · Ownership
Form 3 - Initial statement of beneficial ownership of securities
2026-04-02
Form 8-K - Current report
Key Events
2026-04-02 · Key Events
Form 8-K - Current report
2026-04-02
Form ARS - Annual Report to Security Holders
2026-04-02 ·
Form ARS - Annual Report to Security Holders
2026-04-02
Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Key Events
2026-04-02 · Key Events
Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material
2026-04-02
Form DEF 14A - Other definitive proxy statements
Key Events
2026-04-02 · Key Events
Form DEF 14A - Other definitive proxy statements
2026-03-31
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-31 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
2026-03-30
Form 144 - Report of proposed sale of securities
Ownership
2026-03-30 · Ownership
Form 144 - Report of proposed sale of securities
2026-03-30
Form 4 - Statement of changes in beneficial ownership of securities
Ownership
2026-03-30 · Ownership
Form 4 - Statement of changes in beneficial ownership of securities
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