Bender Mark Steven (CIK 1330417) reported 19 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-05-14). Recent activity: Buy WLK (13,164 shares), Sell WLK (5,284 shares), Sell WLK (16,413 shares), Sell WLK (1,171 shares), Buy WLK (6,199 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-05-14 | WESTLAKE CORP (WLK) | EVP & CFO | Buy | 13,164 | $0 |
| 2026-05-14 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 5,284 | $514,345 |
| 2026-03-30 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 16,413 | $1.8M |
| 2026-03-06 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 1,171 | $122,908 |
| 2026-03-02 | WESTLAKE CORP (WLK) | EVP & CFO | Buy | 6,199 | $407,956 |
| 2026-03-02 | WESTLAKE CORP (WLK) | EVP & CFO | Buy | 6,494 | $561,991 |
| 2026-03-02 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 12,693 | $1.2M |
| 2026-03-02 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 16,988 | $1.7M |
| 2026-03-02 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 421 | $42,740 |
| 2026-02-23 | WESTLAKE CORP (WLK) | EVP & CFO | Buy | 1,777 | $0 |
| 2026-02-23 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 445 | $41,874 |
| 2026-02-19 | WESTLAKE CORP (WLK) | EVP & CFO | Buy | 4,751 | $0 |
| 2026-02-19 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 1,209 | $119,631 |
| 2025-02-24 | WESTLAKE CORP (WLK) | EVP & CFO | Buy | 8,819 | $0 |
| 2025-02-24 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 3,530 | $390,206 |
| 2025-02-20 | WESTLAKE CORP (WLK) | EVP & CFO | Buy | 13,987 | $0 |
| 2025-02-20 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 4,264 | $475,265 |
| 2025-02-20 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 50 | $5,623 |
| 2025-02-20 | WESTLAKE CORP (WLK) | EVP & CFO | Sell | 132 | $14,884 |
Source: SEC Form 4 filings · as of 2026-05-14