Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 6 years
- Director since
- 2023
6 years of board service in total across 3 boards, counting each seat separately. Longest: Martin Marietta Materials Inc., 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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Martin Marietta Materials Inc. May 14, 202699.1%
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Martin Marietta Materials Inc. May 15, 202599.1%
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Eastman Chemical Company May 1, 202599.7%
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Martin Marietta Materials Inc. May 16, 202499.2%
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Martin Marietta Materials Inc. May 11, 202395.7%
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 |
|---|---|---|---|---|---|
| Oct 7, 2026 | WillScot Holdings Corporation | Grant or award | +6,397 | — | — |
| May 14, 2026 | Martin Marietta Materials Inc. | Grant or award | +313 | — | — |
| May 7, 2026 | Eastman Chemical Company | Grant or award | +1,628 | — | — |
| May 15, 2025 | Martin Marietta Materials Inc. | Grant or award | +308 | $552.86 | $170,281 |
| May 1, 2025 | Eastman Chemical Company | Grant or award | +1,575 | — | — |
| May 16, 2024 | Martin Marietta Materials Inc. | Grant or award | +293 | $581.69 | $170,435 |
| May 11, 2023 | Martin Marietta Materials Inc. | Grant or award | +362 | $400.57 | $145,006 |
Questions about Donald W. Slager
What boards is Donald W. Slager on?
Donald W. Slager sits on the boards of Eastman Chemical Company, Martin Marietta Materials Inc. and WillScot Holdings Corporation.
How long has Donald W. Slager served on boards?
Our records show at least 6 years of board service across 3 boards, the earliest from 2023.
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