filings.toolsItem 4. MINE SAFETY DISCLOSURES
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Item 4. MINE SAFETY DISCLOSURES
Not applicable.
INFORMATION ABOUT OUR EXECUTIVE OFFICERS
Pinnacle West’s executive officers are elected no less often than annually and may be removed by the Board of Directors, or in certain cases also by the Human Resources Committee, at any time. The executive officers, their ages at February 25, 2026, current positions and principal occupations for the past five years are as follows:
| Name | Age | Position | Period | |||||||||||||||||
| Theodore N. Geisler | 47 | Chairman of the Board, Chief Executive Officer and President of Pinnacle West and APS | 2025-Present | |||||||||||||||||
| President of APS; Director, Pinnacle West and APS Boards of Directors | 2024-2025 | |||||||||||||||||||
| President of APS | 2022-2024 | |||||||||||||||||||
| Senior Vice President and Chief Financial Officer of Pinnacle West and APS | 2020-2022 | |||||||||||||||||||
| Shirley A. Baum | 52 | Senior Vice President, Corporate Secretary and General Counsel of Pinnacle West and APS | 2026-Present | |||||||||||||||||
| Senior Vice President and General Counsel of Pinnacle West and APS | 2025-2026 | |||||||||||||||||||
| Vice President of Law of Pinnacle West and APS | 2022-2025 | |||||||||||||||||||
| Deputy General Counsel of Pinnacle West | 2019-2022 | |||||||||||||||||||
| Christopher R. Bauer | 50 | Vice President and Treasurer of Pinnacle West and APS | 2024-Present | |||||||||||||||||
| Director, Corporate Finance and Assistant Treasurer of Duke Energy Corporation | 2021-2024 | |||||||||||||||||||
| Director, Credit and Capital Markets of Duke Energy Corporation | 2017-2021 | |||||||||||||||||||
| Elizabeth A. Blankenship | 54 | Vice President, Controller and Chief Accounting Officer of Pinnacle West and APS | 2019-Present | |||||||||||||||||
| Andrew D. Cooper | 47 | Senior Vice President and Chief Financial Officer of Pinnacle West and APS | 2022-Present | |||||||||||||||||
| Vice President and Treasurer of Pinnacle West and APS | 2020-2022 | |||||||||||||||||||
| Jose L. Esparza | 51 | Senior Vice President, Public Policy of APS | 2022-Present | |||||||||||||||||
| Vice President, Regulatory of APS | 2022 | |||||||||||||||||||
| Officer and Senior Vice President, Customer Engagement and Information Technology of Southwest Gas | 2019-2021 | |||||||||||||||||||
| Adam C. Heflin | 62 | Executive Vice President and Chief Nuclear Officer, Palo Verde, of APS | 2022-Present | |||||||||||||||||
| Chief Executive Officer of Wolf Creek Nuclear Operating Corporation | 2014-2019 | |||||||||||||||||||
| Jacob Tetlow | 53 | Executive Vice President and Chief Operating Officer of APS | 2024-Present | |||||||||||||||||
| Executive Vice President, Operations of APS | 2021-2024 | |||||||||||||||||||
| Senior Vice President, Non-Nuclear Operations of APS | 2020-2021 |
PART II
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