20 Form 4 filings for WLK between 2026-08-10 and 2026-08-17, from 11 filers. 20 discretionary (0 sales, 10 purchases). None state a filing-level total — that aggregate began on 2026-08-17 — so each row below shows only its largest transaction.
| Filed | Filer | Role | Action | Shares largest txn | Price | Filing total | Txns |
|---|---|---|---|---|---|---|---|
| 2026-08-17 | Sheets Jeffrey Wayne (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-17 | Sabat Carolyn Chao (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-17 | Patel Bhavesh V. (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-17 | NORTHCUTT R BRUCE (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-17 | MCCOLLUM MARK A (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-17 | Lubel Kimberly S (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-17 | Graff Michael J (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-17 | CREGG ROGER A (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-17 | Chao David Tsung-Hung (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-17 | Chao Catherine T. (Director at WESTLAKE CORP) filed a Form 4; no parseable transaction details were found in the filing. | ||||||
| 2026-08-11 | Chao Albert | acquired | 38,873 | $61.87 | — | 3 | |
| 2026-08-10 | Sheets Jeffrey Wayne | acquired | 2,168 | — | — | — | |
| 2026-08-10 | Sabat Carolyn Chao | acquired | 2,168 | — | — | — | |
| 2026-08-10 | NORTHCUTT R BRUCE | acquired | 2,168 | — | — | — | |
| 2026-08-10 | MCCOLLUM MARK A | acquired | 2,168 | — | — | — | |
| 2026-08-10 | Lubel Kimberly S | acquired | 2,168 | — | — | — | |
| 2026-08-10 | Graff Michael J | acquired | 2,168 | — | — | — | |
| 2026-08-10 | CREGG ROGER A | acquired | 2,168 | — | — | — | |
| 2026-08-10 | Chao David Tsung-Hung | acquired | 2,168 | — | — | — | |
| 2026-08-10 | Chao Catherine T. | acquired | 2,168 | — | — | — | |
| 20 filings · 11 filers · disclosed totals only | $0 (0/20) | — | |||||