SEC Filing Summary: Pinnacle West Capital Corp & Arizona Public Service Company
Business Context and Reporting Period
This Form 8-K is a joint current report filed by Pinnacle West Capital Corporation and its subsidiary, Arizona Public Service Company, an Arizona corporation. The report date is March 10, 2026, with the document signed on March 12, 2026. The filing relates to a new debt offering under an existing effective Registration Statement on Form S-3.
Key Financial Metrics and Transaction Details
The filing discloses a specific debt issuance event rather than periodic financial performance metrics such as revenue or operating cash flow.
- Debt Issuance: $600,000,000 of 5.10% Notes due 2036.
- Interest Rate: 5.10%.
- Maturity Date: 2036.
- Revenue/Profit/Cash Flow: The filing text does not provide a clear value for these metrics.
- Liquidity/Debt Ratios: The filing text does not provide a clear value for these metrics.
Material Changes
The primary material change reported is the execution of an Underwriting Agreement and the issuance of the $600 million note offering. This increases the registrants' outstanding long-term debt obligations by the principal amount of the new notes.
Guidance, Outlook, and Risks
The filing does not contain management commentary, forward-looking guidance, or specific risk factors beyond the standard disclosure of the debt instrument terms. The transaction was executed pursuant to a Registration Statement effective as of February 28, 2024.
Investor Verification Checklist
- Verify the final closing date and net proceeds of the $600 million 5.10% Notes due 2036.
- Review the Thirty-Third Supplemental Indenture (Exhibit 4.1) for covenants and restrictions.
- Confirm the intended use of proceeds from this offering in the related prospectus supplement.
- Check subsequent filings for the impact of this issuance on the company's leverage ratios and liquidity position.