MGEE furnishes Exhibit 99.1 and attends 2025 EEI investor meetings

Rhea-AI Filing Summary

MGE Energy, Inc. (MGEE) furnished a Regulation FD update. On November 7, 2025, the company posted a financial presentation on its Investor Relations website and furnished the slides as Exhibit 99.1.

Company representatives will meet with investors at the 2025 EEI Financial Conference in Hollywood, Florida, from November 9–11, 2025. The materials are furnished, not filed with the SEC.

8-K Event Classification

2 items: 7.01, 9.01

2 items

Item 7.01 Regulation FD Disclosure Disclosure

Material non-public information disclosed under Regulation Fair Disclosure, often investor presentations or guidance.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, and exhibit attachments filed with this report.

Understanding 8-K Material Events →

false0000061339false000116172800011617282025-11-072025-11-070001161728mgee:MgeMember2025-11-072025-11-07

		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549
	FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934
		November 7, 2025 Date of report (date of earliest event reported)
Commission File No.		Name of Registrant, State of Incorporation, Address of Principal Executive Offices, and Telephone No.		IRS Employer Identification No.
000-49965		MGE Energy, Inc. (a Wisconsin Corporation) 133 South Blair Street Madison, Wisconsin 53788 (608) 252-7000 | mgeenergy.com		39-2040501
000-1125		Madison Gas and Electric Company (a Wisconsin Corporation) 133 South Blair Street Madison, Wisconsin 53788 (608) 252-7000 | mge.com		39-0444025

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading symbol(s)		Name of each exchange on which registered
Common Stock, $1 Par Value Per Share		MGEE		The NASDAQ Stock Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

MGE Energy, Inc. ☐ Madison Gas and Electric Company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

MGE Energy, Inc. ☐ Madison Gas and Electric Company ☐

1

Item 7.01. Regulation FD Disclosure.

On November 7, 2025, MGE Energy, Inc. posted a financial presentation on its Investor Relations website. A copy of the presentation is attached as Exhibit 99.1. Representatives of MGE Energy, Inc. will be participating in upcoming meetings with investors at the 2025 EEI Financial Conference in Hollywood, Florida, November 9-11, 2025. This Form 8-K and the attached exhibits are furnished to, but not filed with, the Securities and Exchange Commission.
 

Item 9.01. Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.		Description
99.1		Presentation Slides.
104		Cover Page Interactive Data File (the cover page XBRL tags are embedded in the Inline XBRL document).

2

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned hereunto duly authorized.

	MGE Energy, Inc. Madison Gas and Electric Company
	(Registrants)
Date: November 7, 2025	/s/ Jenny L. Lagerwall
	Jenny L. Lagerwall Assistant Vice President - Accounting and Controller (Chief Accounting Officer)

3

FAQ

What did MGEE announce in this 8-K?

MGE Energy posted a financial presentation on its Investor Relations website and furnished the slides as Exhibit 99.1.

Where can I find MGEE’s new investor materials?

The financial presentation is available on the company’s Investor Relations website and is furnished as Exhibit 99.1.

Is the MGEE investor presentation filed or furnished?

The presentation and related exhibits are furnished, not filed with the SEC.

What event will MGEE attend and when?

Representatives will participate in investor meetings at the 2025 EEI Financial Conference in Hollywood, Florida, November 9–11, 2025.

What is MGEE’s trading symbol and exchange?

MGEE trades on The NASDAQ Stock Market under the symbol MGEE.

Which exhibit contains the investor slides?

The slides are included as Exhibit 99.1.