Westlake Corporation (WLK) — SEC filings
Recent SEC filings for Westlake Corporation — 10-K, 10-Q, 8-K, proxy statements, and insider transactions.
| Form Type | Filing Date | Accepted Date |
|---|---|---|
| 4 | 2026-06-16 | 2026-06-16 |
| 8-K | 2026-06-15 | 2026-06-15 |
| 3 | 2026-06-15 | 2026-06-15 |
| SD | 2026-05-18 | 2026-05-18 |
| 8-K | 2026-05-18 | 2026-05-18 |
| 4 | 2026-05-14 | 2026-05-14 |
| 10-Q | 2026-05-06 | 2026-05-06 |
| 8-K | 2026-05-05 | 2026-05-05 |
| 8-K | 2026-05-01 | 2026-05-01 |
| 8-K | 2026-04-20 | 2026-04-20 |
| 8-K | 2026-04-14 | 2026-04-14 |
| 4 | 2026-04-06 | 2026-04-06 |
| 8-K | 2026-04-06 | 2026-04-06 |
| 3 | 2026-04-02 | 2026-04-02 |
| 8-K | 2026-04-02 | 2026-04-02 |
| ARS | 2026-04-02 | 2026-04-02 |
| DEFA14A | 2026-04-02 | 2026-04-02 |
| DEF 14A | 2026-04-02 | 2026-04-02 |
| 4 | 2026-03-31 | 2026-03-31 |
| 144 | 2026-03-30 | 2026-03-30 |
Recent SEC filings.