Chao John Tsung-chen
Insider transactions at 1 company
This page shows all SEC Form 4 filings attributed to Chao John Tsung-chen. Form 4 disclosures are required whenever a corporate insider — director, officer, or 10%+ shareholder — buys, sells, or receives company stock. Each row represents a separate reported transaction. All data is sourced directly from the SEC EDGAR public database.
| Company | Title | Type | Shares | Price | Value | Date |
|---|---|---|---|---|---|---|
| WLK | Award / Grant | 955 | — | — | Mar 5, 2025 | |
| WLK | Award / Grant | 955 | — | — | Feb 20, 2025 | |
| WLK | Option Exercise | 513 | — | — | Feb 18, 2025 | |
| WLK | Tax Withholding | 235 | $108.62 | $25,526 | Feb 18, 2025 | |
| WLK | Option Exercise | 2,400 | — | — | Aug 14, 2021 | |
| WLK | Option Exercise | 2,387 | — | — | Aug 16, 2020 | |
| WLK | Option Exercise | 1,409 | — | — | Aug 17, 2019 |