Chao John Tsung-chen (CIK 1746472) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-02-23). Recent activity: Buy WLK (213 shares), Sell WLK (91 shares), Buy WLK (570 shares), Sell WLK (242 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-02-23 | WESTLAKE CORP (WLK) | Director | Buy | 213 | $0 |
| 2026-02-23 | WESTLAKE CORP (WLK) | Director | Sell | 91 | $8,563 |
| 2026-02-19 | WESTLAKE CORP (WLK) | Director | Buy | 570 | $0 |
| 2026-02-19 | WESTLAKE CORP (WLK) | Director | Sell | 242 | $23,946 |
来源：SEC Form 4 申报文件 · 截至 2026-02-23