John Tsung-chen Chao
VP & MD, Westlake Innovations at Westlake Corporation
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Westlake Corporation, 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Westlake Corporation May 9, 202492.5%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Feb 20, 2026 | Westlake Corporation | Shares withheld for tax | −91 | $94.10 | $8,563 |
| Feb 19, 2026 | Westlake Corporation | Grant or award | +213 | — | — |
| Feb 18, 2026 | Westlake Corporation | Shares withheld for tax | −242 | $98.95 | $23,946 |
| Feb 17, 2026 | Westlake Corporation | Option exercise | +570 | — | — |
| Feb 20, 2025 | Westlake Corporation | Grant or award | +955 | — | — |
| Feb 18, 2025 | Westlake Corporation | Option exercise | +513 | — | — |
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