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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):
May 14, 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 CORPORATION86-0512431
(an Arizona corporation)
400 North Fifth Street, P.O. Box 53999
PhoenixArizona85072-3999
(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 5.07. Submission of Matters to a Vote of Security Holders.
On May 14, 2026, at the Annual Meeting of Shareholders (the “Annual Meeting”) of Pinnacle West Capital Corporation (the “Company”) the shareholders voted on three proposals. The final voting results are as follows:
Proposal 1. The shareholders elected the ten directors nominated for one-year terms that will expire at the 2027 Annual Meeting. The voting results are set forth below:
FORWITHHELDBROKER NON-VOTE
Glynis A. Bryan95,980,7355,797,5678,715,982
Ronald Butler, Jr.100,311,7681,466,5348,715,982
Gonzalo A. de la Melena, Jr.101,017,705760,5978,715,982
Carol S. Eicher101,082,932695,3708,715,982
Susan T. Flanagan101,130,922647,3808,715,982
Theodore N. Geisler99,949,9641,828,3388,715,982
Paula J. Sims100,227,0921,551,2108,715,982
William H. Spence99,571,8412,206,4618,715,982
Kristine L. Svinicki101,120,407657,8958,715,982
James E. Trevathan, Jr.100,555,3511,222,9518,715,982

Proposal 2. The shareholders approved an advisory vote on executive compensation. The voting results are set forth below:

FORAGAINSTABSTENTIONSBROKER NON-VOTES
98,755,0162,750,428272,8588,715,982

Proposal 3. The shareholders ratified the appointment of Deloitte & Touche LLP as the Company’s independent accountant for the year ending December 31, 2026. The voting results are set forth below:

FORAGAINSTABSTENTIONS
107,509,8252,819,186165,273



SIGNATURES

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

PINNACLE WEST CAPITAL CORPORATION
(Registrant)
Dated: May 18, 2026/s/ Shirley A. Baum
Shirley A. Baum
Senior Vice President, General Counsel and Corporate Secretary