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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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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 2026, and vests in four equal, annual installments beginning on February 20, 2027."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F2","text":"The Restricted Stock Units award was granted and was effective in February 2026, and vests in four equal, annual installments beginning on February 20, 2027."}],"balance_after":5464,"derivative":{"underlying":"Common Stock","underlying_shares":5464},"source":{"system":"sec-edgar","filing":"0001628280-26-009849","document":"wk-form4_1771538108.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828026009849/wk-form4_1771538108.xml","form_type":"4"}},{"id":1069656,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, COO, APS"}}],"security":"Common Stock","published_at":"2025-08-12T15:55:38.000Z","date":"2025-08-11","kind":"sale","planned":false,"acquired":false,"shares":6496,"price":92.37,"value":600035.52,"ownership":{"direct":true},"balance_after":56,"source":{"system":"sec-edgar","filing":"0001862964-25-000006","document":"wk-form4_1755014135.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000186296425000006/wk-form4_1755014135.xml","form_type":"4"}},{"id":1196424,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, COO, APS"}}],"security":"Common Stock","published_at":"2025-03-20T18:40:30.000Z","date":"2025-03-18","kind":"tax_withholding","planned":false,"acquired":false,"shares":4874,"price":93.38,"value":455134.12,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Shares retained by the Company for the purpose of meeting tax withholding requirements. 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earnings per share growth; clean megawatts installed metrics; and performance shares received in connection with dividend equivalent rights."},{"field":"price","element":"transactionPricePerShare","label":"F1","text":"Shares acquired upon the vesting of the performance shares granted in 2022 that were tied to the following: total shareholder return performance; earnings per share growth; clean megawatts installed metrics; and performance shares received in connection with dividend equivalent rights."}],"balance_after":13064,"source":{"system":"sec-edgar","filing":"0001628280-25-014073","document":"wk-form4_1742496023.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025014073/wk-form4_1742496023.xml","form_type":"4"}},{"id":1233739,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, COO, APS"}}],"security":"Common Stock","published_at":"2025-03-04T17:16:05.000Z","date":"2025-03-03","kind":"sale","planned":false,"acquired":false,"shares":678,"price":93.44,"value":63352.32,"ownership":{"direct":true},"balance_after":56,"source":{"system":"sec-edgar","filing":"0001628280-25-009685","document":"wk-form4_1741108559.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025009685/wk-form4_1741108559.xml","form_type":"4"}},{"id":1233738,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, COO, APS"}}],"security":"Common Stock","published_at":"2025-03-04T17:16:05.000Z","date":"2025-03-03","kind":"sale","planned":false,"acquired":false,"shares":1594,"price":93.4,"value":148879.6,"ownership":{"direct":true},"balance_after":734,"source":{"system":"sec-edgar","filing":"0001628280-25-009685","document":"wk-form4_1741108559.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025009685/wk-form4_1741108559.xml","form_type":"4"}},{"id":1251603,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, COO, APS"}}],"security":"Restricted Stock Units","published_at":"2025-02-24T21:54:47.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":1472,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","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."},{"field":"shares","element":"transactionShares","label":"F14","text":"The number of derivative securities in Column 5 includes 61 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalent rights accrue 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":"F3","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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F15","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":"F15","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":"F16","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":"0001628280-25-007402","document":"wk-form4_1740434079.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":23,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025007402/wk-form4_1740434079.xml","form_type":"4"}},{"id":1251602,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, COO, APS"}}],"security":"Restricted Stock Units","published_at":"2025-02-24T21:54:47.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":1354,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","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."},{"field":"shares","element":"transactionShares","label":"F11","text":"The number of derivative securities in Column 5 includes 114 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalent rights accrue 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":"F3","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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F12","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":"F12","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":"F13","text":"Includes 226 Restricted Stock Units received in connection with the settlement of dividend equivalent rights"}],"balance_after":2706,"derivative":{"underlying":"Common Stock","underlying_shares":1354},"source":{"system":"sec-edgar","filing":"0001628280-25-007402","document":"wk-form4_1740434079.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":22,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025007402/wk-form4_1740434079.xml","form_type":"4"}},{"id":1251601,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, COO, APS"}}],"security":"Restricted Stock Units","published_at":"2025-02-24T21:54:47.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":744,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","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."},{"field":"shares","element":"transactionShares","label":"F8","text":"The number of derivative securities in Column 5 includes 90 vested Restricted Stock Units received in connection with the settlement of dividend equivalent\nrights. Dividend equivalent rights accrue 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":"F3","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."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F9","text":"The Restricted Stock Units award was granted and was effective in February 2022, and vests in four equal, annual installments beginning on February 20, 2023."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F9","text":"The Restricted Stock Units award was granted and was effective in February 2022, and vests in four equal, annual installments beginning on February 20, 2023."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F10","text":"Includes 97 Restricted Stock Units received in connection with the settlement of dividend equivalent rights."}],"balance_after":751,"derivative":{"underlying":"Common Stock","underlying_shares":744},"source":{"system":"sec-edgar","filing":"0001628280-25-007402","document":"wk-form4_1740434079.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":21,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025007402/wk-form4_1740434079.xml","form_type":"4"}},{"id":1251600,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, COO, APS"}}],"security":"Restricted Stock Units","published_at":"2025-02-24T21:54:47.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":527,"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, at the reporting\nperson's election, in 100% shares of common stock, 50% in common stock and 50% in cash, or 100% in cash."},{"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, at the reporting\nperson's election, in 100% shares of common stock, 50% in common stock and 50% in cash, or 100% in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F7","text":"The Restricted Stock Units award was granted and was effective in February 2021, and vests in four equal, annual installments beginning on February 20,\n2022."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F7","text":"The Restricted Stock Units award was granted and was effective in February 2021, and vests in four equal, annual installments beginning on February 20,\n2022."}],"balance_after":0,"derivative":{"underlying":"Common Stock","underlying_shares":527},"source":{"system":"sec-edgar","filing":"0001628280-25-007402","document":"wk-form4_1740434079.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":20,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828025007402/wk-form4_1740434079.xml","form_type":"4"}},{"id":1251599,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, COO, APS"}}],"security":"Restricted Stock Units","published_at":"2025-02-24T21:54:47.000Z","date":"2025-02-20","kind":"exercise","planned":false,"acquired":false,"shares":176,"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 settledeither 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":"F4","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 settledeither 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":"shares","element":"transactionShares","label":"F14","text":"The number of derivative securities in Column 5 includes 58 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividendequivalent rights accrue 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":"F4","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 settledeither 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":"derivative.exercise_date","element":"exerciseDate","label":"F15","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":"F15","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":"F16","text":"Includes 172 Restricted Stock Units received in connection with the settlement of dividend equivalent rights."}],"balance_after":3892,"derivative":{"underlying":"Common Stock","underlying_shares":1298},"source":{"system":"sec-edgar","filing":"0000950170-24-019407","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":28,"url":"https://www.sec.gov/Archives/edgar/data/764622/000095017024019407/ownership.xml","form_type":"4"}},{"id":1623930,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, Ops, APS"}}],"security":"Restricted Stock Units","published_at":"2024-02-23T21:23:44.000Z","date":"2024-02-20","kind":"exercise","planned":false,"acquired":false,"shares":717,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F4","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 settledeither 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":"shares","element":"transactionShares","label":"F11","text":"The number of derivative securities in Column 5 includes 63 vested Restricted Stock Units received in connection with the settlement of dividend equivalent rights. Dividend equivalentrights accrue 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":"F4","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, atthe reporting person's election, in 100% shares of common stock, 50% in common stock and 50% in cash, or 100% in cash."},{"field":"price","element":"transactionPricePerShare","label":"F3","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, atthe reporting person's election, in 100% shares of common stock, 50% in common stock and 50% in cash, or 100% in cash."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F10","text":"The Restricted Stock Units award was granted and was effective in February 2021, and vests in four equal, annual installments beginning on February 20, 2022."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F10","text":"The Restricted Stock Units award was granted and was effective in February 2021, and vests in four equal, annual installments beginning on February 20, 2022."}],"balance_after":527,"derivative":{"underlying":"Common Stock","underlying_shares":527},"source":{"system":"sec-edgar","filing":"0000950170-24-019407","document":"ownership.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":26,"url":"https://www.sec.gov/Archives/edgar/data/764622/000095017024019407/ownership.xml","form_type":"4"}},{"id":1623928,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":47516,"kind":"person","name":"Tetlow Jacob","position":1,"cik":"0001862964","reported_name":"Tetlow Jacob","relationship":{"director":false,"officer":false,"ten_percent_owner":false,"other":true,"other_text":"EVP, Ops, APS"}}],"security":"Restricted Stock Units","published_at":"2024-02-23T21:23:44.000Z","date":"2024-02-20","kind":"exercise","planned":false,"acquired":false,"shares":176,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F3","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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