Jeffrey B. Guldner
Chairman, President and CEO at Pinnacle West Capital Corporation
Sits on 3 boards. Last updated September 27, 2026
Time on boards
- Boards served
- 3
- Current seats
- 3
- Board service
- 7 years
- Director since
- 2023
7 years of board service in total across 3 boards, counting each seat separately. Longest: Pinnacle West Capital Corporation, 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
Duke Energy Corporation (Holding Company) May 7, 202699.0%
-
Pinnacle West Capital Corporation May 22, 202495.9%
-
Pinnacle West Capital Corporation May 19, 202395.8%
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 19, 2026 | Nextpower Inc. | Grant or award | +2,742 | — | — |
| Aug 19, 2025 | Nextpower Inc. | Grant or award | +3,692 | — | — |
| Mar 18, 2025 | Pinnacle West Capital Corporation | Grant or award | +94,008 | — | — |
| Mar 18, 2025 | Pinnacle West Capital Corporation | Sold back to the company | −11,859 | $93.38 | $1,107,393 |
| Mar 18, 2025 | Pinnacle West Capital Corporation | Shares withheld for tax | −35,202 | $93.38 | $3,287,163 |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Option exercise | +3,838 | — | — |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Shares withheld for tax | −1,555 | $90.77 | $141,147 |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Option exercise | +5,401 | — | — |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Sold back to the company | −682 | $90.77 | $61,905 |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Shares withheld for tax | −1,912 | $90.77 | $173,552 |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Option exercise | +5,396 | — | — |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Sold back to the company | −454 | $90.77 | $41,210 |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Shares withheld for tax | −2,118 | $90.77 | $192,251 |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Option exercise | +6,760 | — | — |
| Feb 20, 2025 | Pinnacle West Capital Corporation | Sold back to the company | −280 | $90.77 | $25,416 |
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