# EDGAR Filing Document

**Accession Number:** 0000764622
**File Stem:** 0001628280-26-023518
**Filing Date:** 2026-4
**Character Count:** 3519
**Document Hash:** bc6129e388fd5c5e251b77f0c084ec90
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-26-023518.hdr.sgml**: 20260403

**ACCESSION NUMBER**: 0001628280-26-023518

**CONFORMED SUBMISSION TYPE**: DEFA14A

**PUBLIC DOCUMENT COUNT**: 24

**FILED AS OF DATE**: 20260403

**DATE AS OF CHANGE**: 20260403

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** PINNACLE WEST CAPITAL CORP
- **CENTRAL INDEX KEY:** 0000764622
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC SERVICES [4911]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 860512431
- **STATE OF INCORPORATION:** AZ
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** DEFA14A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-08962
- **FILM NUMBER:** 26837216

**BUSINESS ADDRESS:**
- **STREET 1:** 400 NORTH FIFTH STREET
- **STREET 2:** MS 8695
- **CITY:** PHOENIX
- **STATE:** AZ
- **ZIP:** 85004
- **BUSINESS PHONE:** 602 250 1000

**MAIL ADDRESS:**
- **STREET 1:** 400 NORTH FIFTH STREET
- **STREET 2:** MS 8695
- **CITY:** PHOENIX
- **STATE:** AZ
- **ZIP:** 85004

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** AZP GROUP INC
- **DATE OF NAME CHANGE:** 19870506

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

Washington, DC 20549

**SCHEDULE 14A**

**PROXY STATEMENT PURSUANT TO SECTION 14(a)** 

**OF THE SECURITIES EXCHANGE ACT OF 1934** 

**(Amendment No.&nbsp;&nbsp;&nbsp;&nbsp;)**

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| | | | |
|:---|:---|:---|:---|
| ![a1.jpg](a1.jpg) | &nbsp;&nbsp;Filed by the Registrant | ![a2.jpg](a2.jpg) | &nbsp;&nbsp;Filed by a Party other than the Registrant |

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| | |
|:---|:---|
| **Check the appropriate box:** | **Check the appropriate box:** |
| ![a2.jpg](a2.jpg) | Preliminary Proxy Statement |
| ![a2.jpg](a2.jpg) | **Confidential, for Use of the Commission Only (as permitted by Rule 14A-6(E)(2))** |
| ![a2.jpg](a2.jpg) | Definitive Proxy Statement |
| ![a1.jpg](a1.jpg) | Definitive Additional Materials |
| ![a2.jpg](a2.jpg) | Soliciting Material under §240.14a-12 |

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**PINNACLE WEST CAPITAL CORPORATION**

![a3.jpg](a3.jpg)

*(Name of Registrant as Specified in Its Charter)*

*(Name of Person(s) Filing Proxy Statement, if other than the Registrant)*

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| | |
|:---|:---|
| **Payment of Filing Fee (Check all boxes that apply):** | **Payment of Filing Fee (Check all boxes that apply):** |
| ![a1.jpg](a1.jpg) | **No fee required.** |
| ![a2.jpg](a2.jpg) | **Fee paid previously with preliminary materials.** |
| ![a2.jpg](a2.jpg) | **Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11.** |

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