{"filing":{"accession_number":"0001104659-26-071021","cik":"0000764622","ticker":"PNW","company_name":"PINNACLE WEST CAPITAL CORP","form":"8-K","filing_date":"2026-06-05","report_date":null,"primary_document":"tm2616952d1_8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/764622/000110465926071021/tm2616952d1_8k.htm"},"events":[{"id":6424,"run_id":5627,"accession_number":"0001104659-26-071021","anchor_item_number":"8.01","event_type":"dilutive_issuance","event_domain":"financial","is_material":true,"confidence":0.75,"summary":"Pinnacle West disclosed an amendment to an at-the-market (ATM) equity distribution agreement permitting the offer and sale of up to $900 million in common stock shares. While the First Amendment itself only modified the forward sale maturity period from 18 to 24 months, the underlying ATM program represents a material dilutive issuance mechanism. The company has already sold approximately $630 million of the authorized shares, with $270 million remaining available, indicating active use of this equity financing facility. This disclosure is material to investors assessing capital structure and shareholder dilution risk.","company_name":"PINNACLE WEST CAPITAL CORP","ticker":"PNW","filing_date":"2026-06-05","submitted_at":null,"items":[{"id":4896,"accession_number":"0001104659-26-071021","item_number":"8.01","item_title":null,"event_type":"dilutive_issuance","event_domain":"financial","is_material":true,"confidence":0.75,"reasoning":"Pinnacle West disclosed an amendment to an at-the-market (ATM) equity distribution agreement permitting the offer and sale of up to $900 million in common stock shares. While the First Amendment itself only modified the forward sale maturity period from 18 to 24 months, the underlying ATM program represents a material dilutive issuance mechanism. The company has already sold approximately $630 million of the authorized shares, with $270 million remaining available, indicating active use of this equity financing facility. This disclosure is material to investors assessing capital structure and shareholder dilution risk.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T20:45:06.290500+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":4896,"accession_number":"0001104659-26-071021","item_number":"8.01","item_title":null,"event_type":"dilutive_issuance","event_domain":"financial","is_material":true,"confidence":0.75,"reasoning":"Pinnacle West disclosed an amendment to an at-the-market (ATM) equity distribution agreement permitting the offer and sale of up to $900 million in common stock shares. While the First Amendment itself only modified the forward sale maturity period from 18 to 24 months, the underlying ATM program represents a material dilutive issuance mechanism. The company has already sold approximately $630 million of the authorized shares, with $270 million remaining available, indicating active use of this equity financing facility. This disclosure is material to investors assessing capital structure and shareholder dilution risk.","classifier_version":"claude-haiku-4-5-20251001+prompt-9e0ffca5","taxonomy_version":"v1","classified_at":"2026-06-05T20:45:06.290500+00:00","company_name":"PINNACLE WEST CAPITAL CORP","ticker":"PNW","filing_date":"2026-06-05"}]}