MGE Energy(MGEE) - 2019 Q3 - Quarterly Report

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, 2019 ☐ Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 For the transition period from _______________ to _______________ Commission File No. Name of Registrant, State of Incorporation, Address of Principal Executive Offices, and Telephone No. 000-49965 ...