A business in context
WLK research notebook
Read the disclosures. Follow the relationships. Keep the dates in view.
Filing timeline
Download filings CSVReported insider transactions
Download transactions CSVP · PurchaseS · SaleA · Grant / awardM · Exercise / conversionF · Tax / exercise paymentG · Gift
| Transaction / filed | Reporting owner | Type | Security | Shares | Reported price |
|---|---|---|---|---|---|
| 2026-08-31 | Darby Tommy | A · Grant / award | Restricted Stock Units | 1791.0 | 0.0 |
| 2026-08-14 | Sheets Jeffrey Wayne | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-14 | Sabat Carolyn Chao | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-14 | Patel Bhavesh V. | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-14 | NORTHCUTT R BRUCE | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-14 | MCCOLLUM MARK A | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-14 | Lubel Kimberly S | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-14 | Graff Michael J | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-14 | CREGG ROGER A | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-14 | Chao David Tsung-Hung | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-14 | Chao Catherine T. | A · Grant / award | Restricted Stock Units | 2184.0 | 0.0 |
| 2026-08-11 | Chao Albert | M · Exercise / conversion | Common Stock | 38873.0 | 61.87 |
| 2026-08-11 | Chao Albert | S · Sale | Common Stock | 31384.0 | 80.42 |
| 2026-08-11 | Chao Albert | S · Sale | Common Stock | 7489.0 | 79.7 |
| 2026-08-11 | Chao Albert | M · Exercise / conversion | Employee Option (right to buy) | 38873.0 | 0.0 |
| 2026-08-08 | Sheets Jeffrey Wayne | M · Exercise / conversion | Common Stock | 2168.0 | n/a |
| 2026-08-08 | Sheets Jeffrey Wayne | M · Exercise / conversion | Restricted Stock Units | 2168.0 | 0.0 |
| 2026-08-08 | Sabat Carolyn Chao | M · Exercise / conversion | Common Stock | 2168.0 | n/a |
| 2026-08-08 | Sabat Carolyn Chao | M · Exercise / conversion | Restricted Stock Units | 2168.0 | 0.0 |
| 2026-08-08 | NORTHCUTT R BRUCE | M · Exercise / conversion | Common Stock | 2168.0 | n/a |
| 2026-08-08 | NORTHCUTT R BRUCE | M · Exercise / conversion | Restricted Stock Units | 2168.0 | 0.0 |
| 2026-08-08 | MCCOLLUM MARK A | M · Exercise / conversion | Common Stock | 2168.0 | n/a |
| 2026-08-08 | MCCOLLUM MARK A | M · Exercise / conversion | Restricted Stock Units | 2168.0 | 0.0 |
| 2026-08-08 | Lubel Kimberly S | M · Exercise / conversion | Common Stock | 2168.0 | n/a |
| 2026-08-08 | Lubel Kimberly S | M · Exercise / conversion | Restricted Stock Units | 2168.0 | 0.0 |
| 2026-08-08 | Graff Michael J | M · Exercise / conversion | Common Stock | 2168.0 | n/a |
| 2026-08-08 | Graff Michael J | M · Exercise / conversion | Restricted Stock Units | 2168.0 | 0.0 |
| 2026-08-08 | CREGG ROGER A | M · Exercise / conversion | Common Stock | 2168.0 | n/a |
| 2026-08-08 | CREGG ROGER A | M · Exercise / conversion | Restricted Stock Units | 2168.0 | 0.0 |
| 2026-08-08 | Chao David Tsung-Hung | M · Exercise / conversion | Common Stock | 2168.0 | n/a |
| 2026-08-08 | Chao David Tsung-Hung | M · Exercise / conversion | Restricted Stock Units | 2168.0 | 0.0 |
| 2026-08-08 | Chao Catherine T. | M · Exercise / conversion | Common Stock | 2168.0 | n/a |
| 2026-08-08 | Chao Catherine T. | M · Exercise / conversion | Restricted Stock Units | 2168.0 | 0.0 |
Identity & relationships
SEC issuer · 0001262823WESTLAKE CORP
Westlake Vinnolit
- Legal Entity Identifier
- GOXNEVUM0LL78B1OS344
- GLEIF legal name
- WESTLAKE CORPORATION
- Entity / LEI registration status
- ACTIVE / ISSUED
- Reference data updated
- 2026-06-02T15:19:18Z
Search names and former names
View Wikidata identity and references ↗
- Westlake Corporation · alias · wikidata
- Westlake Vinnolit · subsidiary · wikidata
- Vinnolit · subsidiary · wikidata
- WESTLAKE CHEMICAL CORP · former SEC name · 2003-09-22 to 2022-02-01
Revenue in constant purchasing power
| Year ended | Reported USD revenue | CPI-adjusted USD revenue |
|---|---|---|
| 2024-12-31 | $12.14B | $13.04B |
| 2023-12-31 | $12.55B | $13.87B |
| 2022-12-31 | $15.79B | $18.18B |
| 2021-12-31 | $11.78B | $14.64B |
| 2020-12-31 | $7.50B | $9.77B |
| 2019-12-31 | $8.12B | $10.70B |
| 2018-12-31 | $8.63B | $11.59B |
| 2017-12-31 | $8.04B | $11.05B |