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WLK

Westlake Corp SEC filings
Industrial Organic Chemicals · NYSE · Incorporated in DE
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Filing history
2026-11-04
Quarterly report 10-Q
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2026-11-04
Current report 8-K
Earnings resultsReg FD disclosure
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2026-09-29
Current report 8-K
Layoffs/restructuringReg FD disclosure
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2026-09-01
Insider trade 4
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2026-08-31
New insider's holdings 3
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2026-08-31
Current report 8-K
Exec/director change
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2026-08-21
CERT CERT
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2026-08-21
8-A12B 8-A12B
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2026-08-17
Insider trade 4
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2026-08-17
Insider trade 4
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2026-08-17
Insider trade 4
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2026-08-17
Insider trade 4
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2026-08-17
Insider trade 4
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2026-08-17
Insider trade 4
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2026-08-17
Insider trade 4
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2026-08-17
Insider trade 4
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2026-08-17
Insider trade 4
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2026-08-17
Insider trade 4
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2026-08-11
Insider trade 4
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2026-08-11
Planned insider sale 144
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2026-08-10
Insider trade 4
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2026-08-10
Insider trade 4
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2026-08-10
Insider trade 4
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2026-08-10
Insider trade 4
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2026-08-10
Insider trade 4
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2026-08-10
Insider trade 4
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2026-08-10
Insider trade 4
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2026-08-10
Insider trade 4
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2026-08-10
Insider trade 4
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2026-08-05
Quarterly report 10-Q
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2026-08-04
Current report 8-K
Earnings resultsReg FD disclosure
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2026-07-29
Current report 8-K
Other event
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2026-06-16
Insider trade 4
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2026-06-15
Current report 8-K
Reg FD disclosure
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2026-06-15
New insider's holdings 3
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2026-05-18
Conflict minerals report SD
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2026-05-18
Current report 8-K
Shareholder vote
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2026-05-14
Insider trade 4
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2026-05-06
Quarterly report 10-Q
Filing ↗
2026-05-05
Current report 8-K
Earnings resultsReg FD disclosure
Filing ↗