{"url_path":"/sec/pnw/8-k/2026-06-05/item-14","section_key":"item-14","section_title":"Item 14 of the Registration Statement on Form S-3 (No. 333-277448)](tm2616946d1_ex99-1.htm)","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-06-05","source_url":"https://www.sec.gov/Archives/edgar/data/764622/0001104659-26-070960-index.html","accession_number":"0001104659-26-070960","cik":"0000764622","ticker":"PNW","issuer_name":"PINNACLE WEST CAPITAL CORP","edgar_url":"https://www.sec.gov/Archives/edgar/data/764622/0001104659-26-070960-index.html","primary_entity_key":"0000764622","primary_entity_name":"PINNACLE WEST CAPITAL CORP"},"word_count":76,"has_tables":true,"body_markdown":"Item 14 of the Registration Statement on Form S-3 (No. 333-277448)](tm2616946d1_ex99-1.htm)\n \n \n \n \n\n \n \n \n \n \n \n \n\n104\n \n104 Cover Page Interactive\nData File (embedded within the Inline XBRL document)\n \n \n \n \n\n \n\n \n\n \n\n \n\nPursuant to the requirements\nof the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned hereunto\nduly authorized.\n\n \n\n \n \nPINNACLE WEST CAPITAL CORPORATION\n\n \n \n(Registrant)\n\n \n \n \n\nDated: June 5, 2026\n \nBy: /s/ Andrew Cooper\n\n \n \nAndrew Cooper\n\n \n \nSenior Vice President and\n\nChief Financial Officer"}