Company Analysis

Pinnacle West Capital Corporation (PNW)

NYSE: PNW · Electric Services · Phoenix, AZ · filing with the SEC since 1994
Grade4.9
◀ Past 6.1● Present 4.4▶ Future 4.5

Filings

414 filings since 2017 beside 489 insider forms · Large accelerated filer · read from EDGAR on Nov 13, 2026
Due nextLarge accelerated filer
10-K Annual report for the fiscal year ending Dec 31, 2026Large accelerated filers have 60 days after the fiscal year ends. by Mar 1, 2027
10-Q Quarterly report for the quarter ending Mar 31, 2027Large accelerated filers have 40 days after the quarter ends; quarter ends are taken to the month end. by May 10, 2027

A deadline is the latest date the SEC's rules allow for its filer category. It is not a forecast of the day the company files. Last time, the results release (8-K item 2.02) came 34 days after the quarter ended. The proxy statement was last filed Apr 3, 2026.

Filings a yearinsider forms included
9692778283958782
20192020202120222023202420252026

2026 counts to Nov 13, 2026.

Officer or director change (8-K item 5.02): 7 times in the last 36 months, the newest Jun 29, 2026.
Insider forms 489

Insider forms (3, 4, 5 and 144) are counted each year but not listed here; the people and their trades are on the Ownership tab.

FiledFormWhat it is, in plain wordsPeriodAsk
Nov 12, 2026 SCHEDULE 13G Large holder notice
Nov 6, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Nov 3, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Nov 3, 2026 10-Q Quarterly report Sep 30, 2026
Sep 30, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Sep 4, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Aug 13, 2026 8-K item 9.01 Financial statements and exhibits · Current report Aug 10, 2026
Aug 12, 2026 SCHEDULE 13G Large holder notice
Aug 7, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Aug 4, 2026 8-K items 1.01, 9.01 Major agreement signed · Current report
Aug 4, 2026 424B5 Shelf offering
Aug 4, 2026 10-Q Quarterly report Jun 30, 2026
Aug 4, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Jun 29, 2026 8-K items 5.02, 9.01 Officer or director change · Current report Jun 23, 2026
Jun 8, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Jun 5, 2026 8-K items 8.01, 9.01 Other event · Current report
Jun 5, 2026 424B5 Shelf offering
Jun 5, 2026 8-K item 9.01 Financial statements and exhibits · Current report Jun 1, 2026
Jun 2, 2026 424B5 Shelf offering
Jun 1, 2026 FWP Offering communication
Jun 1, 2026 424B5 Shelf offering
May 29, 2026 POSASR Automatic shelf amended
May 19, 2026 8-K item 5.07 Shareholder vote · Current report May 14, 2026
May 14, 2026 SCHEDULE 13G/A Large holder update, amended
May 13, 2026 SCHEDULE 13G Large holder notice
May 6, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
May 4, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
May 4, 2026 10-Q Quarterly report Mar 31, 2026
Apr 30, 2026 SCHEDULE 13G Large holder notice
Apr 15, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Apr 3, 2026 DEFA14A Extra proxy material
Apr 3, 2026 DEF 14A Proxy statement May 14, 2026
Mar 27, 2026 SCHEDULE 13G/A Large holder update, amended
Mar 25, 2026 S-8 POS Employee stock plan update
Mar 12, 2026 8-K item 9.01 Financial statements and exhibits · Current report Mar 10, 2026
Feb 27, 2026 8-K items 7.01, 9.01 Investor disclosure (Regulation FD) · Current report
Feb 25, 2026 ARS Annual report to shareholders Dec 31, 2025
Feb 25, 2026 10-K Annual report Dec 31, 2025
Feb 25, 2026 8-K items 2.02, 7.01, 9.01 Results released; Investor disclosure (Regulation FD) · Current report
Feb 19, 2026 8-K items 1.01, 2.03, 5.02, 9.01 Major agreement signed; New debt or obligation taken on; Officer or director change · Current report Feb 17, 2026
40 of 414 shown

Every row opens the filing on EDGAR. The plain words are the site's own for each form and each 8-K item; the complete history, insider forms included, is on EDGAR.

SI Assistanton PNW · research, not advice