PINNACLE WEST CAPITAL CORP 8-K

What Happened
Pinnacle West Capital Corporation filed an 8-K on Feb. 27, 2026 to disclose that it will participate in meetings with securities analysts and investors in March 2026 and will use handouts during those meetings. The company attached copies of the handouts as Exhibit 99.1 to the filing. The filing is a Regulation FD disclosure intended to make the materials broadly available.

Key Details

• 8-K filed on February 27, 2026 (Regulation FD Disclosure, Item 7.01).
• Pinnacle West will use presentation handouts in meetings with analysts and investors in March 2026.
• Copies of the handouts are attached as Exhibit 99.1 (co-registrant listed: Arizona Public Service Company).
• Cover page interactive data is included as Exhibit 104 (Inline XBRL).

Why It Matters
This is a routine Regulation FD filing making investor presentation materials publicly available so all investors have access to the same information presented to analysts. It does not report earnings, financial results, management changes, or a transaction — it simply discloses upcoming investor meetings and the materials to be used. Investors looking for substantive financial updates should watch for separate filings (e.g., earnings releases or Form 10-Q/10-K).