Overview Westlake Corporation is a vertically integrated global manufacturer and marketer of both housing and infrastructure products and performance and essential materials that are designed to enhance the lives of people every day. Our products include some of the most widely used materials in the world, which are fundamental to many diverse consumer and industrial markets, including residential construction, flexible and rigid packaging, automotive, healthcare, water treatment, wind turbines,...
Q2 FY2026 — expected 2026-08-15
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2026-02-26 | 2025-12-31 | 0001262823-26-000016 | EDGAR | 68K words |
| 2025-02-25 | 2024-12-31 | 0001262823-25-000011 | EDGAR | — |
| 2024-02-22 | 2023-12-31 | 0001262823-24-000014 | EDGAR | — |
| 2023-02-22 | 2022-12-31 | 0001262823-23-000011 | EDGAR | — |
| 2022-02-23 | 2021-12-31 | 0001262823-22-000014 | EDGAR | — |
| 2021-02-24 | 2020-12-31 | 0001262823-21-000023 | EDGAR | — |
| 2020-02-19 | 2019-12-31 | 0001262823-20-000007 | EDGAR | — |
| 2019-02-20 | 2018-12-31 | 0001262823-19-000012 | EDGAR | — |
| 2018-02-21 | 2017-12-31 | 0001262823-18-000008 | EDGAR | — |
| 2017-02-22 | 2016-12-31 | 0001262823-17-000008 | EDGAR | — |
| Filed | Period | Accession | Source | Full Text |
|---|---|---|---|---|
| 2025-10-31 | 2025-09-30 | 0001262823-25-000064 | EDGAR | 26K words |
| 2025-08-06 | 2025-06-30 | 0001262823-25-000052 | EDGAR | — |
| 2025-05-02 | 2025-03-31 | 0001262823-25-000029 | EDGAR | — |
| 2024-11-06 | 2024-09-30 | 0001262823-24-000053 | EDGAR | — |
| 2024-08-09 | 2024-06-30 | 0001262823-24-000045 | EDGAR | — |
| 2024-05-02 | 2024-03-31 | 0001262823-24-000025 | EDGAR | — |
| 2023-11-02 | 2023-09-30 | 0001262823-23-000042 | EDGAR | — |
| 2023-08-03 | 2023-06-30 | 0001262823-23-000031 | EDGAR | — |
| 2023-05-04 | 2023-03-31 | 0001262823-23-000020 | EDGAR | — |
| 2022-11-03 | 2022-09-30 | 0001262823-22-000052 | EDGAR | — |
| 2022-08-03 | 2022-06-30 | 0001262823-22-000043 | EDGAR | — |
| 2022-05-04 | 2022-03-31 | 0001262823-22-000022 | EDGAR | — |
| Filed | Accession | Source | Full Text |
|---|---|---|---|
| 2026-04-06 | 0001193125-26-142822 | EDGAR | 60K words |
| 2026-04-02 | 0001193125-26-139007 | EDGAR | — |
| 2026-02-24 | 0001262823-26-000008 | EDGAR | — |
| 2026-02-23 | 0001193125-26-064221 | EDGAR | — |
| 2026-01-06 | 0001262823-26-000005 | EDGAR | — |
| 2025-12-15 | 0001193125-25-318445 | EDGAR | — |
| 2025-11-12 | 0001193125-25-275790 | EDGAR | — |
| 2025-11-05 | 0001193125-25-267207 | EDGAR | — |
| 2025-11-04 | 0001193125-25-263753 | EDGAR | — |
| 2025-10-30 | 0001262823-25-000061 | EDGAR | — |
224 total filings indexed. 192 additional filings (S-1, DEF 14A, etc.) View all (JSON) · SEC EDGAR
| CIK | 0001262823 |
| Ticker | WLK |
| Exchange | NYSE |
| SIC | 2860: Industrial Organic Chemicals |
| Incorporated | DE |
| Website | https://www.westlake.com |
| Listed | 2004-08-11 |
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