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Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. The Restricted Stock Units will be settled in common stock. When the Company declares a cash dividend on its stock from the date of grant until the applicable vesting date, the recipient will be credited with additional Restricted Stock Units in satisfaction of the Dividend Equivalents Award. Vested Restricted Stock Units in satisfaction of the Dividend Equivalents Award will be made in cash."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On February 17, 2026, the recipient received the number specified above of Restricted Stock Units and related Dividend Equivalents. Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. The Restricted Stock Units will be settled in common stock. 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The Restricted Stock Units will be settled in 100% shares of\ncommon stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F13","text":"The Restricted Stock Units award was granted and was effective in February 2024, and vests in four equal, annual installments beginning on February 20, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F13","text":"The Restricted Stock Units award was granted and was effective in February 2024, and vests in four equal, annual installments beginning on February 20, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F14","text":"Includes 182 Restricted Stock Units received in connection with the settlement of dividend equivalent rights."}],"balance_after":4415,"derivative":{"underlying":"Common Stock","underlying_shares":1472},"source":{"system":"sec-edgar","filing":"0001628280-25-007409","document":"wk-form4_1740434276.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":17,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025007409/wk-form4_1740434276.xml","form_type":"4"}},{"id":1251637,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":56952,"kind":"person","name":"Heflin Adam C","position":1,"cik":"0001331794","reported_name":"Heflin Adam C","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP & CNO, APS"}}],"security":"Restricted Stock Units","published_at":"2025-02-24T21:58:02.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":1437,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. 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The Restricted Stock Units will be settled in 100% shares of\ncommon stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"The Restricted Stock Units award was granted and was effective in February 2023, and vests in four equal, annual installments beginning on February 20, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"The Restricted Stock Units award was granted and was effective in February 2023, and vests in four equal, annual installments beginning on February 20, 2024."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F11","text":"Includes 241 Restricted Stock Units received in connection with the settlement of dividend equivalent rights."}],"balance_after":2873,"derivative":{"underlying":"Common Stock","underlying_shares":1437},"source":{"system":"sec-edgar","filing":"0001628280-25-007409","document":"wk-form4_1740434276.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":16,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025007409/wk-form4_1740434276.xml","form_type":"4"}},{"id":1251636,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":56952,"kind":"person","name":"Heflin Adam C","position":1,"cik":"0001331794","reported_name":"Heflin Adam C","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP & CNO, APS"}}],"security":"Restricted Stock Units","published_at":"2025-02-24T21:58:02.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":3622,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. 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The Restricted Stock Units will be settled in 100% shares of\ncommon stock."},{"field":"shares","element":"transactionShares","label":"F4","text":"The number of derivative securities in Column 5 includes 153 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalent rights\naccrue with respect to these Restricted Stock Units when and as cash dividends are paid on the Company's common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. 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The Restricted Stock Units will be settled in 100% shares of\ncommon stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. 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The Restricted Stock Units will be settled in 100% shares of\ncommon stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. 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The Restricted Stock Units will be settled in 100% shares of\ncommon stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. The Restricted Stock Units will be settled in 100% shares of\ncommon stock."}],"balance_after":7254,"source":{"system":"sec-edgar","filing":"0001628280-25-007409","document":"wk-form4_1740434276.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025007409/wk-form4_1740434276.xml","form_type":"4"}},{"id":1257770,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":56952,"kind":"person","name":"Heflin Adam C","position":1,"cik":"0001331794","reported_name":"Heflin Adam C","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP & CNO, APS"}}],"security":"Restricted Stock Units","published_at":"2025-02-20T15:54:35.000Z","date":"2025-02-18","kind":"grant","planned":false,"acquired":true,"shares":4676,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"On February 18, 2025, the recipient received the number specified above of Restricted Stock Units and related Dividend Equivalents.  Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. The Restricted Stock Units will be settled in common stock.  When the Company declares a cash dividend on its stock from the date of grant until the applicable vesting date, the recipient will be credited with additional Restricted Stock Units in satisfaction of the Dividend Equivalents Award.   Vested Restricted Stock Units in satisfaction of the Dividend Equivalents Award will be made in cash."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"On February 18, 2025, the recipient received the number specified above of Restricted Stock Units and related Dividend Equivalents.  Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. The Restricted Stock Units will be settled in common stock.  When the Company declares a cash dividend on its stock from the date of grant until the applicable vesting date, the recipient will be credited with additional Restricted Stock Units in satisfaction of the Dividend Equivalents Award.   Vested Restricted Stock Units in satisfaction of the Dividend Equivalents Award will be made in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Stock Units award was granted and was effective in February 2025, and vests in four equal, annual installments beginning on February 20, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Restricted Stock Units award was granted and was effective in February 2025, and vests in four equal, annual installments beginning on February 20, 2026."}],"balance_after":4676,"derivative":{"underlying":"Common Stock","underlying_shares":4676},"source":{"system":"sec-edgar","filing":"0001628280-25-006617","document":"wk-form4_1740066866.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025006617/wk-form4_1740066866.xml","form_type":"4"}},{"id":1566661,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":56952,"kind":"person","name":"Heflin Adam C","position":1,"cik":"0001331794","reported_name":"Heflin Adam C","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP & CNO, APS"}}],"security":"Restricted Stock Units","published_at":"2024-03-20T22:28:49.000Z","date":"2024-02-20","kind":"exercise","planned":false,"acquired":true,"shares":5644,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. The Restricted Stock Units will be settled either in 100% shares of common stock or 100% in cash with respect to Restricted Stock Units received in connection with the settlement of divident equivalent rights."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. 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The Restricted Stock Units will be settled either in 100% shares of common stock or 100% in cash with respect to Restricted Stock Units received in connection with the settlement of dividend equivalent rights."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Stock Units award was granted and was effective in February 2023, and vests in four equal, annual installments beginning on February 20, 2024."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Restricted Stock Units award was granted and was effective in February 2023, and vests in four equal, annual installments beginning on February 20, 2024."}],"balance_after":5264,"derivative":{"underlying":"Common Stock","underlying_shares":5264},"source":{"system":"sec-edgar","filing":"0001209191-23-012341","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000120919123012341/doc4.xml","form_type":"4"}},{"id":2005444,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":56952,"kind":"person","name":"Heflin Adam C","position":1,"cik":"0001331794","reported_name":"Heflin Adam C","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP & CNO, APS"}}],"security":"Restricted Stock Units","published_at":"2023-02-22T01:06:33.000Z","date":"2023-02-17","kind":"exercise","acquired":false,"shares":3317,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock. 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The Restricted Stock Units will be settled in 100% shares of common stock."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Each Restricted Stock Unit represents a contingent right to receive the economic equivalent of one share of the Company's common stock.  The Restricted Stock Units will be settled in 100% shares of common stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F2","text":"The Restricted Stock Units vest and will be settled as follows: 4,355 will vest on each of February 20, 2023, February 20, 2024, February 20, 2025, and February 20, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Restricted Stock Units vest and will be settled as follows: 4,355 will vest on each of February 20, 2023, February 20, 2024, February 20, 2025, and February 20, 2026."}],"balance_after":17420,"derivative":{"underlying":"Common Stock","underlying_shares":17420},"source":{"system":"sec-edgar","filing":"0001209191-22-036237","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000120919122036237/doc4.xml","form_type":"4"}}]}