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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

 

 

 

FORM 8-K

 

 

 

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

 

  Date of report (Date of earliest event reported): June 1, 2026  

 

 

 

Commission File

Number

 

Exact Name of Each Registrant as specified in its

charter; State of Incorporation; Address; and

Telephone Number

 

IRS Employer

Identification No.

1-8962   PINNACLE WEST CAPITAL CORPORATION   86-0512431
    (an Arizona corporation)    
    400 North Fifth Street, P.O. Box 53999    
    Phoenix Arizona 85072-3999    
    (602) 250-1000      

 

Check 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:

 

¨  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
   
¨  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
   
¨  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
   
¨  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class Trading Symbol(s) Name of each exchange on which registered
Common Stock PNW The New York Stock Exchange

 

Indicate 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).

 

Emerging growth company ¨

 

If 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. ¨

 

 

 

 

 

 

Item 9.01.Financial Statements and Exhibits.

 

(d)  Exhibits.

 

The registrant hereby files the following Exhibits to Registration Statement on Form S-3 (No. 333-277448, which became effective on February 28, 2024).

 

Exhibit No. 

 

Description 

  Previously Filed
as Exhibit
  Date
Filed
             
1.1   Underwriting Agreement dated June 1, 2026, in connection with the offering of $500,000,000 of 4.650% Senior Notes Due 2029        
             
4.1   Seventh Supplemental Indenture relating to the issuance of $500,000,000 of 4.650% Senior Notes Due 2029        
             
4.2   Specimen Note of 4.650% Senior Notes due 2029        
             
5.1   Opinion of Shirley Baum, Senior Vice President, General Counsel and Corporate Secretary        
             
99.1   Information relating to Item 14 of the Registration Statement on Form S-3 (No. 333-277448)        
             
104   104 Cover Page Interactive Data File (embedded within the Inline XBRL document)        

 

 

 

 

Pursuant to the requirements of the Securities Exchange Act of 1934, each registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

    PINNACLE WEST CAPITAL CORPORATION
    (Registrant)
     
Dated: June 5, 2026   By: /s/ Andrew Cooper
    Andrew Cooper
    Senior Vice President and
Chief Financial Officer