Unitil Corp Presents at AGA Financial Forum; Files Regulation FD 8‑K

What Happened

• Unitil Corporation (UTL) filed a Form 8‑K on May 15, 2026 under Regulation FD to disclose that it will attend the American Gas Association (AGA) Financial Forum from May 17–19, 2026.
• The company posted a presentation to the investor relations section of its website (www.unitil.com/investors) that may be discussed at the forum. The presentation is included as Exhibit 99.1 to the filing.
• The filing was signed by Daniel J. Hurstak, Senior Vice President, Chief Financial Officer and Treasurer.

Key Details

• Filing date: May 15, 2026.
• Event dates: AGA Financial Forum, May 17–19, 2026.
• Presentation posted to: www.unitil.com/investors; attached to the 8‑K as Exhibit 99.1.
• Disclosure type: Regulation FD (fair disclosure of material nonpublic information).

Why It Matters

• This 8‑K informs investors that Unitil will publicly present materials at an industry financial forum and that those materials are already available on the company website.
• For investors, the posted presentation is the primary source for any forward-looking commentary or updates Unitil may provide at the forum; the filing itself does not report earnings, financial results, or other new financial statements.