Pinnacle West Capital Corp. Files 8-K

Ticker: PNW · Form: 8-K · Filed: 2025-10-14T00:00:00.000Z

Sentiment: neutral

Topics: 8-K, regulatory-filing

Related Tickers: PNW

TL;DR

PNW filed a standard 8-K, no major news.

AI Summary

Pinnacle West Capital Corp. (PNW) and its subsidiary Arizona Public Service Co. (APS) filed an 8-K on October 14, 2025. The filing primarily serves as a current report, indicating no specific material events or financial disclosures were made on this date. The company's principal executive offices are located at 400 North Fifth Street, Phoenix, AZ.

Why It Matters

This filing is a routine update, suggesting no significant new information or material events have occurred that require immediate disclosure beyond standard reporting requirements.

Risk Assessment

Risk Level: low — The filing is a routine 8-K, indicating no new material events or financial disclosures that would typically impact risk.

Key Players & Entities

FAQ

What is the primary purpose of this 8-K filing?

The primary purpose of this 8-K filing is to serve as a current report, indicating no specific material events or financial disclosures were made on October 14, 2025.

Which companies are listed in this filing?

Pinnacle West Capital Corp. and its subsidiary Arizona Public Service Co. are listed in this filing.

Where are the principal executive offices of Pinnacle West Capital Corp. located?

The principal executive offices of Pinnacle West Capital Corp. are located at 400 North Fifth Street, Phoenix, AZ.

What is the filing date of this 8-K report?

The filing date of this 8-K report is October 14, 2025.

Does this filing indicate any significant financial changes or events?

No, this filing is a routine current report and does not indicate any specific significant financial changes or material events.

Filing Stats: 567 words · 2 min read · ~2 pages · Grade level 13.7 · Accepted 2025-10-14 06:04:22

Filing Documents

01 Regulation FD Disclosure

Item 7.01 Regulation FD Disclosure. Pinnacle West Capital Corporation ("Pinnacle West") will be participating in various meetings with securities analysts and investors in October 2025 and will be utilizing handouts during those meetings. Copies of the handouts are attached hereto as Exhibit 99.1.

01 Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits. (d) Exhibits Exhibit No. Registrant(s) Description 99.1 Pinnacle West Arizona Public Service Company Pinnacle West handouts for use at meetings in October 2025 104 Pinnacle West Arizona Public Service Company 104 Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURES

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: October 14, 2025 By: /s/ Andrew Cooper Andrew Cooper Senior Vice President and Chief Financial Officer ARIZONA PUBLIC SERVICE COMPANY (Registrant) Dated: October 14, 2025 By: /s/ Andrew Cooper Andrew Cooper Senior Vice President and Chief Financial Officer

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