Form 4 for WLK WESTLAKE CORP
Accepted 2026-08-10 13:52:19 ET · period of report 2026-08-08 · accession 0001193125-26-342004 · SEC index · Original document
Summary rows
Aggregated the way they appear in lists: one row per insider, transaction code and security table.
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| D | 2026-08-10 13:52 | 2026-08-08 | WLK | Lubel Kimberly S | Dir | M - OptEx | — | +2,168 | 13.8K | +19% | — |
| D | 2026-08-10 13:52 | 2026-08-08 | WLK | Lubel Kimberly S | Dir | M - OptEx | $0.00 | -2,168 | 2,168 | -50% | $0 |
Purchase Sale Sale after option exercise All abbreviations
Every reported transaction
| # | Table | Security | Date | Code | A/D | Shares | Price | Owned after | Own | Exercise / expiry | Underlying | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Common | Common Stock | 2026-08-08 | M | A | 2,168 | — | 13,821 | D | — | — | (F1) Restricted stock units convert into the Issuer's common stock on a one-for-one basis. |
| 2 | Derivative | Restricted Stock Units | 2026-08-08 | M | D | 2,168 | $0.00 | 2,168 | D | — · — to — | 2,168 Common Stock | (F1) Restricted stock units convert into the Issuer's common stock on a one-for-one basis. (F2) On August 8, 2025 the reporting person was granted 2,168 restricted stock units vesting on the first anniversary of the grant date. (F2) On August 8, 2025 the reporting person was granted 2,168 restricted stock units vesting on the first anniversary of the grant date. |