# Filing Detail

Form 8-K - Current report:
SEC Accession No. 0001193125-26-214813
Filing Date
2026-05-08
Accepted
2026-05-08 16:44:56
Documents
43
Period of Report
2026-05-08
Items
Item 7.01: Regulation FD Disclosure
Item 9.01: Financial Statements and Exhibits

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 8-K | mgee-20260508.htm iXBRL | 8-K | 63085
2 | EX-99.1 | mgee-ex99_1.htm | EX-99.1 | 94311
3 | GRAPHIC | img268226923_0.jpg | GRAPHIC | 665112
4 | GRAPHIC | img268226923_1.jpg | GRAPHIC | 738710
5 | GRAPHIC | img268226923_2.jpg | GRAPHIC | 468245
6 | GRAPHIC | img268226923_3.jpg | GRAPHIC | 516120
7 | GRAPHIC | img268226923_4.jpg | GRAPHIC | 345652
8 | GRAPHIC | img268226923_5.jpg | GRAPHIC | 243104
9 | GRAPHIC | img268226923_6.jpg | GRAPHIC | 401125
10 | GRAPHIC | img268226923_7.jpg | GRAPHIC | 427564
11 | GRAPHIC | img268226923_8.jpg | GRAPHIC | 292262
12 | GRAPHIC | img268226923_9.jpg | GRAPHIC | 272926
13 | GRAPHIC | img268226923_10.jpg | GRAPHIC | 253353
14 | GRAPHIC | img268226923_11.jpg | GRAPHIC | 463467
15 | GRAPHIC | img268226923_12.jpg | GRAPHIC | 345169
16 | GRAPHIC | img268226923_13.jpg | GRAPHIC | 520448
17 | GRAPHIC | img268226923_14.jpg | GRAPHIC | 423510
18 | GRAPHIC | img268226923_15.jpg | GRAPHIC | 343444
19 | GRAPHIC | img268226923_16.jpg | GRAPHIC | 270903
20 | GRAPHIC | img268226923_17.jpg | GRAPHIC | 320738
21 | GRAPHIC | img268226923_18.jpg | GRAPHIC | 383527
22 | GRAPHIC | img268226923_19.jpg | GRAPHIC | 502234
23 | GRAPHIC | img268226923_20.jpg | GRAPHIC | 116431
24 | GRAPHIC | img268226923_21.jpg | GRAPHIC | 191012
25 | GRAPHIC | img268226923_22.jpg | GRAPHIC | 189487
26 | GRAPHIC | img268226923_23.jpg | GRAPHIC | 210152
27 | GRAPHIC | img268226923_24.jpg | GRAPHIC | 187131
28 | GRAPHIC | img268226923_25.jpg | GRAPHIC | 167593
29 | GRAPHIC | img268226923_26.jpg | GRAPHIC | 371765
30 | GRAPHIC | img268226923_27.jpg | GRAPHIC | 403409
31 | GRAPHIC | img268226923_28.jpg | GRAPHIC | 499740
32 | GRAPHIC | img268226923_29.jpg | GRAPHIC | 585901
33 | GRAPHIC | img268226923_30.jpg | GRAPHIC | 616990
34 | GRAPHIC | img268226923_31.jpg | GRAPHIC | 539774
35 | GRAPHIC | img268226923_32.jpg | GRAPHIC | 271245
| Complete submission text file | 0001193125-26-214813.txt |  | 17589167

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
36 | XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT | mgee-20260508.xsd | EX-101.SCH | 51878
46 | EXTRACTED XBRL INSTANCE DOCUMENT | mgee-20260508_htm.xml | XML | 7407

Mailing Address PO BOX 1231 MADISON WI 53701-1231
Business Address 133 SOUTH BLAIR STREET PO BOX 1231 MADISON WI 53701-1231 (608) 252-7000
MADISON GAS & ELECTRIC CO (Filer) CIK: 0000061339 (see all company filings)

EIN.: 390444025 | State of Incorp.: WI | Fiscal Year End: 1025
Type: 8-K | Act: 34 | File No.: 000-01125 | Film No.: 26959224
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)

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: 8-K | Act: 34 | File No.: 000-49965 | Film No.: 26959223
SIC: 4900 Electric, Gas & Sanitary Services
(CF Office: 01 Energy & Transportation)