<SEC-DOCUMENT>0001161728-21-000042-index.html : 20210527 <SEC-HEADER>0001161728-21-000042.hdr.sgml : 20210527 <ACCEPTANCE-DATETIME>20210527143844 ACCESSION NUMBER: 0001161728-21-000042 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20210525 FILED AS OF DATE: 20210527 DATE AS OF CHANGE: 20210527 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Berbee James G CENTRAL INDEX KEY: 0001732234 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 000-49965 FILM NUMBER: 21971295 MAIL ADDRESS: STREET 1: 133 S BLAIR STREET STREET 2: PO BOX 1231 CITY: MADISON STATE: WI ZIP: 53701-1231 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: MGE ENERGY INC CENTRAL INDEX KEY: 0001161728 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC, GAS & SANITARY SERVICES [4900] IRS NUMBER: 392040501 STATE OF INCORPORATION: WI FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 133 SOUTH BLAIR STREET STREET 2: P.O. BOX 1231 CITY: MADISON STATE: WI ZIP: 53701-1231 BUSINESS PHONE: (608) 252-7000 MAIL ADDRESS: STREET 1: 133 SOUTH BLAIR STREET STREET 2: P.O. BOX 1231 CITY: MADISON STATE: WI ZIP: 53701-1231 </SEC-HEADER> <DOCUMENT> <TYPE>4 <SEQUENCE>1 <FILENAME>primary_doc.xml <DESCRIPTION>PRIMARY DOCUMENT <TEXT> Document 1 - file: primary_doc.html
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