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NYSE: PNW PINNACLE WEST CAPITAL CORP 8-K

Pinnacle West files routine investor meeting materials under Regulation FD

Filed June 8, 2026 · Period ending June 8, 2026 · ~1 min read

1 key change 2 sections

Key Changes

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    Company disclosed presentation handouts for June 2026 investor and analyst meetings to comply with Regulation FD fair disclosure requirements. No material business updates or financial results announced in the filing itself.

Summary

Pinnacle West Capital Corporation filed an 8-K to publicly disclose presentation materials it will use at various investor and analyst meetings during June 2026. This is a routine compliance filing under Regulation FD, which requires companies to share with all investors any materials presented in private meetings. The filing itself contains no material business developments, financial results, or strategic announcements—it simply makes the meeting handouts available to the public.

For retail investors, this is a procedural disclosure with no immediate investment implications. The actual content of the presentation materials (Exhibit 99.1) may contain updated financial guidance or business metrics worth reviewing, but the 8-K filing event itself signals no change to the company's operations or outlook.

Section-by-Section Diff

Event · Item 7.01 — Regulation FD Disclosure

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Item 7.01 — Regulation FD Disclosure filed; see Key Changes for terms.

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Added Regulation FD disclosure of investor meeting materials low

Added in current filing · verify on EDGAR →

Pinnacle West Capital Corporation (“Pinnacle West”) will be participating in various meetings with securities analysts and investors in June 2026 and will be utilizing handouts during those meetings. Copies of the handouts are attached hereto as Exhibit 99.1.

The company is disclosing that it will participate in investor and analyst meetings in June 2026 and is providing copies of presentation handouts as an exhibit. This is a routine Regulation FD disclosure to ensure all investors have equal access to materials being shared in private meetings.

Event · Item 9.01 — Financial Statements and Exhibits

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Item 9.01 — Financial Statements and Exhibits filed; see Key Changes for terms.

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Added in current filing · verify on EDGAR →

Exhibit No.Registrant(s)Description 99.1Pinnacle West Arizona Public Service Company Pinnacle West handouts for use at meetings in June 2026

The company filed presentation handouts intended for investor meetings in June 2026. This is a routine procedural filing to publicly disclose materials being used in investor communications. No specific financial results, strategic changes, or material events are disclosed in the 8-K itself.

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Figures/quotes linked to EDGAR · Narrative written by AI · Jun 8, 2026 · How we verify