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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 5, 2021
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
1-4473 ARIZONA PUBLIC SERVICE COMPANY86-0011170
(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. ¨

This combined Form 8-K is separately filed or furnished by Pinnacle West Capital Corporation and Arizona Public Service Company. Each registrant is filing or furnishing on its own behalf all of the information contained in this Form 8-K that relates to such registrant and, where required, its subsidiaries. Except as stated in the preceding sentence, neither registrant is filing or furnishing any information that does not relate to such registrant, and therefore makes no representation as to any such information.






Item 2.02. Results of Operations and Financial Condition.

    The following information is furnished pursuant to Item 2.02.

    On May 5, 2021, Pinnacle West Capital Corporation (“Pinnacle West”) issued a press release regarding its financial results for the fiscal quarter ended March 31, 2021. A copy of the press release is attached hereto as Exhibit 99.1.

Item 7.01. Regulation FD Disclosure.

    The following information is furnished pursuant to Item 7.01.

    Pinnacle West is providing a copy of the slide presentation made in connection with the quarterly earnings conference call on May 5, 2021. This information contains Pinnacle West operating results for the fiscal quarter ended March 31, 2021 and a quarterly consolidated statistical summary. The slide presentation is attached hereto as Exhibit 99.2 and is concurrently being posted to Pinnacle West’s website at www.pinnaclewest.com.

Item 9.01.    Financial Statements and Exhibits.

    (d)    Exhibits
Exhibit No.Registrant(s)Description
99.1Pinnacle West
Arizona Public Service Company
99.2Pinnacle West
Arizona Public Service Company



SIGNATURES

    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: May 5, 2021By: /s/ Theodore N. Geisler    
Theodore N. Geisler
Senior Vice President and
Chief Financial Officer
ARIZONA PUBLIC SERVICE COMPANY
(Registrant)
Dated: May 5, 2021By: /s/ Theodore N. Geisler    
Theodore N. Geisler
Senior Vice President and
Chief Financial Officer