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: National Fuel Gas Company, 3 years.
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
CMS Energy Corporation May 8, 2026100.0%
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CMS Energy Corporation May 2, 2025100.0%
-
CMS Energy Corporation May 3, 2024100.0%
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CMS Energy Corporation May 5, 2023100.0%
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 |
|---|---|---|---|---|---|
| Oct 1, 2026 | National Fuel Gas Company | Grant or award | +577 | $75.89 | $43,789 |
| Jul 1, 2026 | National Fuel Gas Company | Grant or award | +564 | $77.63 | $43,783 |
| May 8, 2026 | CMS Energy Corporation | Grant or award | +2,411 | — | — |
| Apr 1, 2026 | National Fuel Gas Company | Grant or award | +469 | $93.29 | $43,753 |
| Jan 2, 2026 | National Fuel Gas Company | Grant or award | +541 | $80.95 | $43,794 |
| Nov 10, 2025 | National Fuel Gas Company | Gift | −1,395 | — | — |
| Oct 1, 2025 | National Fuel Gas Company | Grant or award | +471 | $92.96 | $43,784 |
| Jul 1, 2025 | National Fuel Gas Company | Grant or award | +518 | $84.62 | $43,833 |
| May 2, 2025 | CMS Energy Corporation | Grant or award | +2,401 | — | — |
| Apr 1, 2025 | National Fuel Gas Company | Grant or award | +552 | $79.27 | $43,757 |
| Jan 2, 2025 | National Fuel Gas Company | Grant or award | +715 | $61.22 | $43,772 |
| Nov 26, 2024 | National Fuel Gas Company | Gift | −1,650 | — | — |
| Oct 1, 2024 | National Fuel Gas Company | Grant or award | +725 | $60.37 | $43,768 |
| Jul 15, 2024 | National Fuel Gas Company | Other | +306 | $56.99 | $17,439 |
| Jul 1, 2024 | National Fuel Gas Company | Grant or award | +806 | $54.30 | $43,766 |
Questions about Ronald J. Tanski
What boards is Ronald J. Tanski on?
Ronald J. Tanski sits on the boards of CMS Energy Corporation and National Fuel Gas Company.
How long has Ronald J. Tanski served on boards?
Our records show at least 7 years of board service across 2 boards, the earliest from 2023.
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