{"url_path":"/sec/cik-0000007286/8-k/2026-06-08/cover-page","section_key":"cover-page","section_title":"Cover Page","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-06-08","source_url":"https://www.sec.gov/Archives/edgar/data/7286/0000764622-26-000031-index.html","accession_number":"0000764622-26-000031","cik":"0000007286","ticker":null,"issuer_name":"ARIZONA PUBLIC SERVICE CO","edgar_url":"https://www.sec.gov/Archives/edgar/data/7286/0000764622-26-000031-index.html","primary_entity_key":"0000007286","primary_entity_name":"ARIZONA PUBLIC SERVICE CO"},"word_count":398,"has_tables":true,"body_markdown":"pnw-20260608\n0000764622falseAZ00000072868-KJune 8, 2026falseAZfalsefalsefalsefalsefalse00007646222026-06-082026-06-080000764622pnw:ArizonaPublicServiceCompanyMember2026-06-082026-06-08\n\nUNITED STATES\n\nSECURITIES AND EXCHANGE COMMISSION\n\nWASHINGTON, DC 20549 \n\n \n\nFORM 8-K \n\n \n\nCURRENT REPORT\n\nPursuant to Section 13 or 15(d) of the\n\nSecurities Exchange Act of 1934\n\nDate of report (Date of earliest event reported):\nJune 8, 2026\n\nCommission File\nNumber Exact Name of Registrant as Specified in\nCharter; State or Other Jurisdiction of Incorporation; Address of Principal Executive Officers, and Zip Code; and\nRegistrant's telephone Number, Including Area Code)IRS Employer\nIdentification No.\n\n1-8962 PINNACLE WEST CAPITAL CORPORATION86-0512431\n\n(an Arizona corporation)\n\n400 North Fifth Street, P.O. Box 53999\n\nPhoenixArizona85072-3999\n\n(602)250-1000\n\n1-4473 ARIZONA PUBLIC SERVICE COMPANY86-0011170\n\n(an Arizona corporation)\n\n400 North Fifth Street, P.O. Box 53999\n\nPhoenixArizona85072-3999\n\n(602)250-1000\n\nNot Applicable\n\n(Former name or former address, if changed since last report.)\n\nCheck the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:\n\n☐\nWritten communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)\n\n☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)\n\n☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))\n\n☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))\n\nSecurities registered pursuant to Section 12(b) of the Act:\n\nTitle of each class\n\nTrading Symbol(s)\n\nName of each exchange on which registered\n\nCommon Stock, no par value\n\nPNW\n\nNew York Stock Exchange\n\nIndicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).\n\nEmerging growth company\n☐\n\nIf an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨\n\nThis combined Form 8-K is separately filed or furnished by Pinnacle West Capital Corporation and Arizona Public Service Company. Each registrant is filing or furnishing on its own behalf all of the information contained in this Form 8-K that relates to such registrant and, where required, its subsidiaries. Except as stated in the preceding sentence, neither registrant is filing or furnishing any information that does not relate to such registrant, and therefore makes no representation as to any such information."}