WESTLAKE CORP reports

Company location: Houston, TX
Fiscal year end: 31 December

WESTLAKE CORP has filed 1,692 SEC EDGAR filings since 22 Sep 2003

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SEC filing history

Showing 51-75 of 1,000 matching filings.

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25

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3

8-K File 001-32260

8-K

Filing date: 15 Dec 2025
Reporting date: 12 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4

Filing date: 10 Dec 2025
Reporting date: 10 Dec 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32260

8-K

Filing date: 12 Nov 2025
Reporting date: 10 Nov 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-32260

8-K

Filing date: 05 Nov 2025
Reporting date: 04 Nov 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

424B5 File 333-291208

424B5

Filing date: 05 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

FWP File 333-291208

FWP

Filing date: 04 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32260

8-K

Filing date: 04 Nov 2025
Reporting date: 04 Nov 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

424B5 File 333-291208

424B5

Filing date: 04 Nov 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

S-3ASR File 333-291208

S-3ASR

Filing date: 31 Oct 2025
Reporting date: Not listed
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-32260

10-Q

Filing date: 31 Oct 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-32260

8-K

Filing date: 30 Oct 2025
Reporting date: 30 Oct 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4

Filing date: 03 Oct 2025
Reporting date: 01 Oct 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 29 Aug 2025
Reporting date: 28 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-32260

8-K

Filing date: 26 Aug 2025
Reporting date: 26 Aug 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

4

Filing date: 11 Aug 2025
Reporting date: 08 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 11 Aug 2025
Reporting date: 08 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 11 Aug 2025
Reporting date: 08 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 11 Aug 2025
Reporting date: 08 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 11 Aug 2025
Reporting date: 08 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 11 Aug 2025
Reporting date: 08 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 11 Aug 2025
Reporting date: 08 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 11 Aug 2025
Reporting date: 08 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

4

Filing date: 11 Aug 2025
Reporting date: 08 Aug 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-32260

10-Q

Filing date: 06 Aug 2025
Reporting date: 30 Jun 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-32260

8-K

Filing date: 05 Aug 2025
Reporting date: 05 Aug 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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