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 February 21, 2024 Date of report (date of earliest event reported) | Commission Name of Registrant, State Incorporation, Address IRS Employer | of | | --- | --- | | File No. of Principal Executive Offices, and Telephone No. Identification No. | | | MGE Energy, Inc. 000-49965 39-2040501 | | | (a Wisconsin Corporation) | | | 133 South Blair Stre ...

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended: December 31, 2023 ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 | For the transition period from _______________ to _______________ | | | | --- | --- | --- | | Commission Name of Registrant, State of Incorporation, Address | | IRS Employer | | File No. of Principal Execu ...

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended: September 30, 2023 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from _______________ to _______________ | Commission Name of Registrant, State of Incorporation, Address IRS Employer | | --- | | File No. of Principal Executive Offices, a ...

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended: June 30, 2023 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from _______________ to _______________ Commission Name of Registrant, State of Incorporation, Address IRS Employer File No. of Principal Executive Offices, and Telephone No. Id ...

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the quarterly period ended: March 31, 2023 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from _______________ to _______________ Commission Name of Registrant, State of Incorporation, Address IRS Employer File No. of Principal Executive Offices, and Telephone No. I ...

United States SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ Annual Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the fiscal year ended: December 31, 2022 ☐ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from _______________ to _______________ Commission Name of Registrant, State of Incorporation, Address IRS Employer File No. of Principal Executive Offices, and Telephone No. Identi ...

| --- | --- | --- | |-------|---------------------|----------| | | | | | | | | | | | | | | moc | | | | FINANCIAL REPORT | ENERGY。 | | | 2019 SECOND QUARTER | T | Disclaimer All statements in this presentation other than historical facts are forward-looking statements that involve risks and uncertainties which are subject to change at any time. Such statements are based upon management's expectations at the time they are made. Various factors could cause actual results to be significantly different than thos ...