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The Restricted Stock Units will be settled in 100% shares of common stock."},{"field":"shares","element":"transactionShares","label":"F7","text":"The number of derivative securities in Column 5 includes 12 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":"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":"F8","text":"The Restricted Stock Units award was granted effective February 2025, and vests in four equal, annual installments beginning February 20, 2026."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F8","text":"The Restricted Stock Units award was granted effective February 2025, and vests in four equal, annual installments beginning February 20, 2026."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F9","text":"Includes 33 Restricted Stock Units received in connection with the settlement of dividend equivalent rights."}],"balance_after":870,"derivative":{"underlying":"Common Stock","underlying_shares":291},"source":{"system":"sec-edgar","filing":"0001628280-26-011301","document":"wk-form4_1771974624.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":8,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828026011301/wk-form4_1771974624.xml","form_type":"4"}},{"id":886924,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":65092,"kind":"person","name":"Bauer Christopher R.","position":1,"cik":"0002069494","reported_name":"Bauer Christopher R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP and Treasurer"}}],"security":"Restricted Stock Unit","published_at":"2026-02-24T23:10:27.000Z","date":"2026-02-20","kind":"exercise","planned":false,"acquired":true,"shares":272,"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 in 100% shares of common stock."},{"field":"shares","element":"transactionShares","label":"F4","text":"The number of derivative securities in Column 5 includes 17 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":"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":"F5","text":"The Restricted Stock Units award was granted and was effective in November 2024, and vests in four equal, annual installments beginning on February 20, 2025."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F5","text":"The Restricted Stock Units award was granted and was effective in November 2024, and vests in four equal, annual installments beginning on February 20, 2025."},{"field":"balance_after","element":"sharesOwnedFollowingTransaction","label":"F6","text":"Includes 30 Restricted Stock Units received in connection with the settlement of dividend equivalent rights."}],"balance_after":540,"derivative":{"underlying":"Common Stock","underlying_shares":272},"source":{"system":"sec-edgar","filing":"0001628280-26-011301","document":"wk-form4_1771974624.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":7,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828026011301/wk-form4_1771974624.xml","form_type":"4"}},{"id":886923,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":65092,"kind":"person","name":"Bauer Christopher R.","position":1,"cik":"0002069494","reported_name":"Bauer Christopher R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP and Treasurer"}}],"security":"Common Sock","published_at":"2026-02-24T23:10:27.000Z","date":"2026-02-20","kind":"tax_withholding","planned":false,"acquired":false,"shares":89,"price":98.34,"value":8752.26,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Shares retained by the Company for purpose of meeting tax withholding requirements.  The recipient retained all other shares."}],"balance_after":494,"source":{"system":"sec-edgar","filing":"0001628280-26-011301","document":"wk-form4_1771974624.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":6,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828026011301/wk-form4_1771974624.xml","form_type":"4"}},{"id":886922,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":65092,"kind":"person","name":"Bauer Christopher R.","position":1,"cik":"0002069494","reported_name":"Bauer Christopher R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP and Treasurer"}}],"security":"Common Sock","published_at":"2026-02-24T23:10:27.000Z","date":"2026-02-20","kind":"disposition_to_issuer","planned":false,"acquired":false,"shares":12,"price":98.34,"value":1180.08,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F2","text":"Represents the cash settlement of Restricted Stock Units received in connection with the settlement of dividend equivalent rights."}],"balance_after":583,"source":{"system":"sec-edgar","filing":"0001628280-26-011301","document":"wk-form4_1771974624.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":5,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828026011301/wk-form4_1771974624.xml","form_type":"4"}},{"id":886921,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":65092,"kind":"person","name":"Bauer Christopher R.","position":1,"cik":"0002069494","reported_name":"Bauer Christopher R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP and Treasurer"}}],"security":"Common Sock","published_at":"2026-02-24T23:10:27.000Z","date":"2026-02-20","kind":"exercise","planned":false,"acquired":true,"shares":291,"ownership":{"direct":true},"footnotes":[{"field":"shares","element":"transactionShares","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":"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."}],"balance_after":595,"source":{"system":"sec-edgar","filing":"0001628280-26-011301","document":"wk-form4_1771974624.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":4,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828026011301/wk-form4_1771974624.xml","form_type":"4"}},{"id":886920,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":65092,"kind":"person","name":"Bauer Christopher R.","position":1,"cik":"0002069494","reported_name":"Bauer Christopher R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP and Treasurer"}}],"security":"Common Sock","published_at":"2026-02-24T23:10:27.000Z","date":"2026-02-20","kind":"tax_withholding","planned":false,"acquired":false,"shares":81,"price":98.34,"value":7965.54,"ownership":{"direct":true},"footnotes":[{"field":"kind","element":"transactionCoding","label":"F3","text":"Shares retained by the Company for purpose of meeting tax withholding requirements.  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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."}],"balance_after":402,"source":{"system":"sec-edgar","filing":"0001628280-26-011301","document":"wk-form4_1771974624.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828026011301/wk-form4_1771974624.xml","form_type":"4"}},{"id":895191,"issuer":{"id":3465,"kind":"organization","name":"PINNACLE WEST CAPITAL CORP"},"owners":[{"id":65092,"kind":"person","name":"Bauer Christopher R.","position":1,"cik":"0002069494","reported_name":"Bauer Christopher R.","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP and Treasurer"}}],"security":"Restricted Stock Unit","published_at":"2026-02-19T21:04:41.000Z","date":"2026-02-17","kind":"grant","planned":false,"acquired":true,"shares":1140,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","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. 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":1140,"derivative":{"underlying":"Common Stock","underlying_shares":1140},"source":{"system":"sec-edgar","filing":"0001628280-26-009707","document":"wk-form4_1771535079.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/764622/000162828026009707/wk-form4_1771535079.xml","form_type":"4"}}]}