WESTLAKE CORP (WLK)
NYSE · Industrial Organic Chemicals · Inc. DE
What they're doing
Between 2026-06-21 and 2026-09-19, public records show 2 signals for WESTLAKE CORP. Most notable: 2026-08-31: Filed 8-K disclosing director or officer change; 2026-08-11: Chao Albert (director) sold $2.5M of stock. Federal contract obligations over the last 24 months total $0. This summary was assembled automatically from SEC EDGAR, USAspending.gov, U.S. Senate lobbying disclosures and Wikimedia pageview counts.
Generated 2026-09-19 from public records.
Signals, last 12 months
- Material 8-K filingFiled 8-K disclosing director or officer change
- Large insider saleChao Albert (director) sold $2.5M of stock
- Material 8-K filingFiled 8-K disclosing director or officer change
- Material 8-K filingFiled 8-K disclosing material agreement
- Material 8-K filingFiled 8-K disclosing director or officer change
- Large insider saleBender Mark Steven (officer) sold $1.8M of stock
- Large insider saleBender Mark Steven (officer) sold $1.7M of stock
- Large insider saleBender Mark Steven (officer) sold $1.7M of stock
- Material 8-K filingFiled 8-K disclosing director or officer change
- Large insider saleChao Albert (director) sold $2.3M of stock
- Large insider saleChao Albert (director) sold $2.3M of stock
- Material 8-K filingFiled 8-K disclosing material agreement
Insider transactions
| Date | Insider | Role | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-08-11 | Chao Albert | director | S | 31,384 | 80.42 | $2,523,901 |
| 2026-08-11 | Chao Albert | director | M | 38,873 | 61.87 | $2,404,878 |
| 2026-08-11 | Chao Albert | director | S | 7,489 | 79.7 | $596,873 |
| 2026-08-08 | Sheets Jeffrey Wayne | director | M | 2,168 | — | — |
| 2026-08-08 | Sabat Carolyn Chao | director | M | 2,168 | — | — |
| 2026-08-08 | NORTHCUTT R BRUCE | director | M | 2,168 | — | — |
| 2026-08-08 | MCCOLLUM MARK A | director | M | 2,168 | — | — |
| 2026-08-08 | Lubel Kimberly S | director | M | 2,168 | — | — |
| 2026-08-08 | Graff Michael J | director | M | 2,168 | — | — |
| 2026-08-08 | CREGG ROGER A | director | M | 2,168 | — | — |
| 2026-08-08 | Chao David Tsung-Hung | director | M | 2,168 | — | — |
| 2026-08-08 | Chao Catherine T. | director | M | 2,168 | — | — |
| 2026-05-13 | Bender Mark Steven | officer | F | 5,284 | 97.34 | $514,345 |
| 2026-05-13 | Bender Mark Steven | officer | F | 5,284 | 97.34 | $514,345 |
| 2026-05-12 | Bender Mark Steven | officer | M | 13,164 | 0 | $0 |
| 2026-05-12 | Bender Mark Steven | officer | M | 13,164 | 0 | $0 |
| 2026-03-27 | Buesinger Robert F. | officer | S | 4,000 | 115.25 | $461,000 |
| 2026-03-27 | Bender Mark Steven | officer | S | 16,413 | 112.54 | $1,847,119 |
| 2026-03-27 | Buesinger Robert F. | officer | S | 4,000 | 115.25 | $461,000 |
| 2026-03-27 | Bender Mark Steven | officer | S | 16,413 | 112.54 | $1,847,037 |
| 2026-02-27 | Bender Mark Steven | officer | M | 6,199 | 65.81 | $407,956 |
| 2026-02-27 | Bender Mark Steven | officer | S | 421 | 101.52 | $42,740 |
| 2026-02-27 | Bender Mark Steven | officer | S | 16,988 | 100.91 | $1,714,259 |
| 2026-02-27 | Bender Mark Steven | officer | D | 12,693 | 98.2 | $1,246,453 |
| 2026-02-27 | Bender Mark Steven | officer | M | 6,494 | 86.54 | $561,991 |
| 2026-02-27 | Bender Mark Steven | officer | M | 6,199 | 65.81 | $407,972 |
| 2026-02-27 | Bender Mark Steven | officer | M | 6,494 | 86.54 | $561,977 |
| 2026-02-27 | Bender Mark Steven | officer | D | 12,693 | 98.2 | $1,246,453 |
| 2026-02-27 | Bender Mark Steven | officer | S | 16,988 | 100.91 | $1,714,259 |
| 2026-02-27 | Bender Mark Steven | officer | S | 421 | 101.52 | $42,738 |
| 2026-02-20 | Szwejbka Scott Thomas | officer | F | 91 | 94.1 | $8,563 |
| 2026-02-20 | Holy Jeffrey Adam | officer | F | 81 | 94.1 | $7,622 |
| 2026-02-20 | Ederington L. Benjamin | officer | F | 357 | 94.1 | $33,594 |
| 2026-02-20 | Buesinger Robert F. | officer | F | 326 | 94.1 | $30,677 |
| 2026-02-20 | Bender Mark Steven | officer | F | 445 | 94.1 | $41,875 |
| 2026-02-20 | Chao John Tsung-chen | director | F | 91 | 94.1 | $8,563 |
| 2026-02-20 | Chao Albert | director | F | 2,501 | 94.1 | $235,344 |
| 2026-02-20 | Chao James | director | F | 1,569 | 94.1 | $147,643 |
| 2026-02-20 | Szwejbka Scott Thomas | officer | F | 91 | 94.1 | $8,563 |
| 2026-02-20 | Holy Jeffrey Adam | officer | F | 81 | 94.1 | $7,622 |
| 2026-02-20 | Ederington L. Benjamin | officer | F | 357 | 94.1 | $33,594 |
| 2026-02-20 | Buesinger Robert F. | officer | F | 326 | 94.1 | $30,677 |
| 2026-02-20 | Bender Mark Steven | officer | F | 445 | 94.1 | $41,874 |
| 2026-02-20 | Chao John Tsung-chen | director | F | 91 | 94.1 | $8,563 |
| 2026-02-20 | Chao Albert | director | F | 2,501 | 94.1 | $235,347 |
| 2026-02-20 | Chao James | director | F | 1,569 | 94.1 | $147,644 |
| 2026-02-19 | Szwejbka Scott Thomas | officer | A | 365 | 0 | $0 |
| 2026-02-19 | Holy Jeffrey Adam | officer | A | 264 | 0 | $0 |
| 2026-02-19 | Ederington L. Benjamin | officer | A | 1,425 | 0 | $0 |
| 2026-02-19 | Buesinger Robert F. | officer | A | 1,301 | 0 | $0 |
Federal contracts
No federal contract actions on record for this recipient mapping.
Lobbying
No federal lobbying filings on record for this client mapping.
Public attention
7-day average 41 views/day vs 90-day median 37.