Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 2 boards, counting each seat separately. Longest: Griffon 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.
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Turning Point Brands Inc. May 4, 202698.5%
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Griffon Corporation February 18, 202698.1%
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Turning Point Brands Inc. May 6, 202596.9%
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Griffon Corporation March 11, 202597.8%
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Turning Point Brands Inc. May 1, 202454.9%
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Griffon Corporation March 20, 202497.5%
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Turning Point Brands Inc. May 3, 202393.7%
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Griffon Corporation March 15, 202397.9%
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 |
|---|---|---|---|---|---|
| May 11, 2026 | Turning Point Brands Inc. | Grant or award | +1,295 | $92.71 | $120,059 |
| Feb 18, 2026 | Griffon Corporation | Grant or award | +1,340 | — | — |
| Dec 15, 2025 | Turning Point Brands Inc. | Open-market sale | −2,000 | $108.20 | $216,400 |
| May 8, 2025 | Turning Point Brands Inc. | Grant or award | +1,058 | $75.66 | $80,048 |
| Mar 11, 2025 | Griffon Corporation | Grant or award | +1,594 | — | — |
| May 8, 2024 | Turning Point Brands Inc. | Grant or award | +2,415 | $33.13 | $80,009 |
| May 8, 2024 | Turning Point Brands Inc. | Shares withheld for tax | −689 | $33.13 | $22,827 |
| Mar 20, 2024 | Griffon Corporation | Grant or award | +1,525 | — | — |
| May 8, 2023 | Turning Point Brands Inc. | Grant or award | +1,723 | $21.77 | $37,510 |
| May 1, 2023 | Turning Point Brands Inc. | Shares withheld for tax | −478 | $23.65 | $11,305 |
| May 1, 2023 | Turning Point Brands Inc. | Grant or award | +13 | $23.65 | $307 |
| Mar 15, 2023 | Griffon Corporation | Grant or award | +3,308 | — | — |
Questions about H.c. Charles Diao
What boards is H.c. Charles Diao on?
H.c. Charles Diao sits on the boards of Griffon Corporation and Turning Point Brands Inc.
How long has H.c. Charles Diao served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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