Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 3 years
- Director since
- 2023
3 years of board service in total across 1 board, counting each seat separately. Longest: Westlake Corporation, 3 years.
Westlake Corporation
Director
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 8, 202591.0%
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 |
|---|---|---|---|---|---|
| Aug 8, 2026 | Westlake Corporation | Option exercise | +2,168 | — | — |
| Aug 9, 2025 | Westlake Corporation | Option exercise | +1,128 | — | — |
| Nov 29, 2024 | Westlake Corporation | Open-market sale | −1,750 | $129.08 | $225,890 |
| Nov 22, 2024 | Westlake Corporation | Open-market sale | −1,750 | $130.00 | $227,500 |
| Aug 11, 2024 | Westlake Corporation | Option exercise | +1,136 | — | — |
| Aug 31, 2023 | Westlake Corporation | Gift | +19,423 | — | — |
| Aug 23, 2023 | Westlake Corporation | Open-market sale | −1,000 | $131.00 | $131,000 |
| Aug 12, 2023 | Westlake Corporation | Option exercise | +1,446 | — | — |
Questions about David Tsung-Hung Chao
What boards is David Tsung-Hung Chao on?
David Tsung-Hung Chao sits on the board of Westlake Corporation.
How long has David Tsung-Hung Chao served on boards?
Our records show at least 3 years of board service across 1 board, the earliest from 2023.
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