# Filing Detail

Form 10-K - Annual report [Section 13 and 15(d), not S-K Item 405]:
SEC Accession No. 0001193125-26-067036
Filing Date
2026-02-24
Accepted
2026-02-24 16:16:56
Documents
136
Period of Report
2025-12-31

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-K | mgee-20251231.htm iXBRL | 10-K | 10517867
2 | EX-4.2 | mgee-ex4_2.htm | EX-4.2 | 30113
3 | EX-10.27 | mgee-ex10_27.htm | EX-10.27 | 696968
4 | EX-19.1 | mgee-ex19_1.htm | EX-19.1 | 61077
5 | EX-21 | mgee-ex21.htm | EX-21 | 12064
6 | EX-23.1 | mgee-ex23_1.htm | EX-23.1 | 4761
7 | EX-23.2 | mgee-ex23_2.htm | EX-23.2 | 5194
8 | EX-31.1 | mgee-ex31_1.htm | EX-31.1 | 15026
9 | EX-31.2 | mgee-ex31_2.htm | EX-31.2 | 14976
10 | EX-31.3 | mgee-ex31_3.htm | EX-31.3 | 15086
11 | EX-31.4 | mgee-ex31_4.htm | EX-31.4 | 15343
12 | EX-32.1 | mgee-ex32_1.htm | EX-32.1 | 8364
13 | EX-32.2 | mgee-ex32_2.htm | EX-32.2 | 8493
14 | EX-32.3 | mgee-ex32_3.htm | EX-32.3 | 8380
15 | EX-32.4 | mgee-ex32_4.htm | EX-32.4 | 8509
16 | EX-97.1 | mgee-ex97_1.htm | EX-97.1 | 42147
17 | GRAPHIC | img202742246_0.gif | GRAPHIC | 94381
18 | GRAPHIC | img202742246_1.gif | GRAPHIC | 86333
19 | GRAPHIC | img202742246_2.gif | GRAPHIC | 95392
| Complete submission text file | 0001193125-26-067036.txt |  | 45073275

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
20 | XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT | mgee-20251231.xsd | EX-101.SCH | 3510352
139 | EXTRACTED XBRL INSTANCE DOCUMENT | mgee-20251231_htm.xml | XML | 12454357

Mailing Address 133 SOUTH BLAIR STREET PO BOX 1231 MADISON WI 53701-1231
Business Address 133 SOUTH BLAIR STREET PO BOX 1231 MADISON WI 53701-1231 (608) 252-7000
MGE ENERGY INC (Filer) CIK: 0001161728 (see all company filings)

EIN.: 392040501 | State of Incorp.: WI | Fiscal Year End: 1231
Type: 10-K | Act: 34 | File No.: 000-49965 | Film No.: 26671819
SIC: 4900 Electric, Gas & Sanitary Services
(CF Office: 01 Energy & Transportation)