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WESTLAKE CORP

CIK: 1262823 SIC: 2860
1000
Total Filings
15
Filing Categories
47
Financial Reports
All Categories 1000 Financial Reports 91 Current Event Reports 239 Registration Statements 22 Proxy & Shareholder Statements 52 Prospectus Filings 38 Insider Trading 1116 Beneficial Ownership 50 Securities Sales 28 Employee Benefit Plans 2 Free Writing Prospectus 7 Specialized Disclosure 13 Annual Reports to Shareholders 15 Exchange Act Filings 3 SEC Correspondence 30 Other Filings 15

Current Event Reports

Reports of material events and corporate changes

150 filings
Form Filing Type Period Filed Date Action
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-08-31
2026-08-31
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-08-04
2026-08-04
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-07-29
2026-07-29
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-06-15
2026-06-15
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-05-14
2026-05-18
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-05-05
2026-05-05
Local
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-04-27
2026-05-01
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-04-15
2026-04-20
Local
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-04-13
2026-04-14
Local
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-04-02
2026-04-06
Local
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-03-30
2026-04-02
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-02-24
2026-02-24
Local
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-02-19
2026-02-23
Local
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2026-01-06
2026-01-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-12-12
2025-12-15
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-11-10
2025-11-12
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-11-04
2025-11-05
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-11-04
2025-11-04
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-10-30
2025-10-30
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-08-26
2025-08-26
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-08-05
2025-08-05
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-06-17
2025-06-17
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-05-08
2025-05-12
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-05-02
2025-05-02
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-04-11
2025-04-16
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-02-28
2025-03-04
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2025-02-24
2025-02-24
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-12-10
2024-12-11
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-11-05
2024-11-05
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-08-08
2024-08-12
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-08-06
2024-08-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-07-29
2024-07-29
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-07-15
2024-07-15
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-07-01
2024-07-01
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-06-13
2024-06-13
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-05-22
2024-05-29
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-05-09
2024-05-13
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-05-01
2024-05-01
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-04-25
2024-04-25
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-04-03
2024-04-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-02-20
2024-02-20
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2024-02-06
2024-02-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2023-11-02
2023-11-02
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2023-08-03
2023-08-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2023-05-11
2023-05-16
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2023-05-04
2023-05-04
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2023-04-03
2023-04-05
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2023-02-16
2023-02-21
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2023-02-21
2023-02-21
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2022-11-03
2022-11-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2022-08-12
2022-08-15
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2022-08-02
2022-08-02
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2022-06-09
2022-06-09
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2022-05-12
2022-05-13
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2022-05-03
2022-05-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2022-02-22
2022-02-22
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2022-02-18
2022-02-18
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2022-02-01
2022-02-01
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-11-24
2021-11-24
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-11-02
2021-11-02
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-10-01
2021-10-01
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-08-19
2021-08-19
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-08-19
2021-08-19
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-08-05
2021-08-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-08-03
2021-08-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-07-04
2021-07-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-06-20
2021-06-21
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-05-13
2021-05-17
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-05-04
2021-05-04
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2021-02-23
2021-02-23
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-11-18
2020-11-18
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-11-03
2020-11-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-09-21
2020-09-21
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-09-08
2020-09-08
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-08-27
2020-08-28
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-08-06
2020-08-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-07-14
2020-07-14
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-06-12
2020-06-12
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-06-09
2020-06-10
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-06-04
2020-06-04
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-05-15
2020-05-18
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-05-04
2020-05-04
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-03-20
2020-03-20
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-02-13
2020-02-18
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-02-18
2020-02-18
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2020-01-27
2020-01-31
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-11-12
2019-11-18
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-11-05
2019-11-05
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-10-29
2019-10-30
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-08-06
2019-08-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-07-17
2019-07-17
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-07-10
2019-07-11
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-07-10
2019-07-10
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-07-01
2019-07-01
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-05-17
2019-05-21
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-05-02
2019-05-02
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-02-19
2019-02-19
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2019-01-02
2019-01-02
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-11-06
2018-11-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-09-25
2018-09-25
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-08-17
2018-08-17
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-08-17
2018-08-17
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-08-02
2018-08-02
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-07-24
2018-07-26
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-05-18
2018-05-21
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-05-03
2018-05-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-02-20
2018-02-20
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2018-01-05
2018-01-08
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-11-28
2017-11-28
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-11-13
2017-11-14
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-11-13
2017-11-13
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-11-13
2017-11-13
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-11-07
2017-11-07
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-08-03
2017-08-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-05-19
2017-05-19
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-05-02
2017-05-02
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-02-21
2017-02-21
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-01-24
2017-01-24
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-01-23
2017-01-23
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2017-01-20
2017-01-20
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-11-08
2016-11-08
SEC
8-K/A
Amended Current Report
Amendment to current report
2016-08-31
2016-09-08
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-09-07
2016-09-07
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-09-06
2016-09-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-08-31
2016-08-31
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-08-23
2016-08-24
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-08-22
2016-08-22
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-08-10
2016-08-10
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-08-08
2016-08-08
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-08-03
2016-08-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-08-03
2016-08-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-08-03
2016-08-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-07-28
2016-07-28
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-06-30
2016-06-30
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-06-10
2016-06-14
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-06-10
2016-06-10
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-05-10
2016-05-11
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-05-03
2016-05-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-02-23
2016-02-23
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-02-16
2016-02-16
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2016-01-29
2016-01-29
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2015-12-17
2015-12-17
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2015-11-20
2015-11-24
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2015-11-03
2015-11-03
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2015-08-04
2015-08-04
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2015-05-15
2015-05-18
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2015-05-05
2015-05-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2015-05-04
2015-05-04
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2015-04-01
2015-04-06
SEC
8-K
Current Report
Report of material events (acquisitions, earnings, executive changes)
2015-02-24
2015-02-24
SEC

Filing categories are based on SEC form types. Click on any filing to view detailed financial data.

Legend: Financial Reports Current Event Reports Registration Statements Proxy & Shareholder Statements Prospectus Filings Insider Trading Beneficial Ownership Securities Sales Employee Benefit Plans Free Writing Prospectus Specialized Disclosure Annual Reports to Shareholders Exchange Act Filings SEC Correspondence Other Filings

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