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Pinnacle West Capital Corp. SEC filings

In the twelve months since 23 September 2025 Pinnacle West Capital Corp. filed 27 documents with the SEC of the kinds listed here: 20 current reports (8-K), about 12 regulation fd disclosure; 4 results of operations; 2 material agreement; 2 officer or director change; 1 other events; 3 quarterly reports (10-Q), 1 additional proxy material (DEFA14A), 1 proxy statement (DEF 14A), 1 annual report to shareholders (ARS), 1 annual report (10-K). The latest, filed 4 September 2026: 8-K, regulation fd disclosure.

FiledFormWhat it was aboutPeriod or event dateFiling
4 September 20268-KRegulation FD disclosure4 September 2026EDGAR
13 August 20268-Kcurrent report10 August 2026EDGAR
7 August 20268-KRegulation FD disclosure7 August 2026EDGAR
4 August 20268-KMaterial agreement4 August 2026EDGAR
4 August 202610-Qquarterly report30 June 2026EDGAR
4 August 20268-KResults of operations, Regulation FD disclosure4 August 2026EDGAR
29 June 20268-KOfficer or director change23 June 2026EDGAR
8 June 20268-KRegulation FD disclosure8 June 2026EDGAR
5 June 20268-KOther events5 June 2026EDGAR
5 June 20268-Kcurrent report1 June 2026EDGAR
19 May 20268-KShareholder vote14 May 2026EDGAR
6 May 20268-KRegulation FD disclosure6 May 2026EDGAR
4 May 20268-KResults of operations, Regulation FD disclosure4 May 2026EDGAR
4 May 202610-Qquarterly report31 March 2026EDGAR
15 April 20268-KRegulation FD disclosure15 April 2026EDGAR
3 April 2026DEFA14Aadditional proxy materialEDGAR
3 April 2026DEF 14Aproxy statement14 May 2026EDGAR
12 March 20268-Kcurrent report10 March 2026EDGAR
27 February 20268-KRegulation FD disclosure27 February 2026EDGAR
25 February 2026ARSannual report to shareholders31 December 2025EDGAR
25 February 202610-Kannual report31 December 2025EDGAR
25 February 20268-KResults of operations, Regulation FD disclosure25 February 2026EDGAR
19 February 20268-KMaterial agreement, New financial obligation, Officer or director change17 February 2026EDGAR
7 November 20258-KRegulation FD disclosure7 November 2025EDGAR
3 November 202510-Qquarterly report30 September 2025EDGAR
3 November 20258-KResults of operations, Regulation FD disclosure3 November 2025EDGAR
14 October 20258-KRegulation FD disclosure14 October 2025EDGAR

An 8-K is what a company files within four business days of a material event; the SEC numbers the events, and the words here are the SEC's own headings, shortened. Form 4, Form 144, 13F and Schedule 13D and 13G have their own pages. Prospectus supplements and correspondence are not listed.

Source

The company's filing index on EDGAR, read from the SEC's submissions feed.

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