MGEE - CIK 0001161728
MGE ENERGY INC has filed 822 documents with the SEC between 2001 and 2026. The most frequent type is major company event (248 filings), alongside the regular cadence of annual reports, quarterly reports, and event disclosures every public company must make. Use the filters to focus on one filing type, or flip the sort to trace the company's history from its earliest paperwork.
Data parsed from SEC EDGAR XBRL filings. See the full market cap rankings.
| Filing | Type | Filed | Period covered |
|---|---|---|---|
| Major company event | 8-K | 2026-05-22 | 2026-05-19 |
| Major company event | 8-K | 2026-05-08 | 2026-05-08 |
| Major company event | 8-K | 2026-05-08 | 2026-05-06 |
| Prospectus supplement | 424B5 | 2026-05-07 | - |
| Prospectus supplement | 424B5 | 2026-05-06 | - |
| Major company event | 8-K | 2026-05-05 | 2026-05-05 |
| Quarterly report | 10-Q | 2026-05-05 | 2026-03-31 |
| SCHEDULE 13G | - | 2026-04-30 | - |
| SCHEDULE 13G | - | 2026-04-29 | - |
| Proxy materials | DEFA14A | 2026-04-23 | - |
| Insider trade | 4 | 2026-04-21 | 2026-04-17 |
| Major company event | 8-K | 2026-04-21 | 2026-04-17 |
| Annual report to shareholders | ARS | 2026-04-02 | 2025-12-31 |
| Proxy materials | DEFA14A | 2026-04-02 | - |
| Proxy materials | DEFA14A | 2026-04-02 | - |
| Proxy statement | DEF 14A | 2026-04-02 | 2026-03-30 |
| SCHEDULE 13G/A | - | 2026-03-27 | - |
| Insider trade | 4 | 2026-03-12 | 2026-03-11 |
| New insider ownership | 3 | 2026-03-03 | 2026-03-01 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Insider trade | 4 | 2026-03-03 | 2026-03-02 |
| Major company event | 8-K | 2026-02-27 | 2026-02-27 |
| Major company event | 8-K | 2026-02-24 | 2026-02-24 |
| Prospectus supplement | 424B5 | 2026-02-24 | - |
| S-3ASR | - | 2026-02-24 | - |
| Major company event | 8-K | 2026-02-24 | 2026-02-24 |
| Annual report | 10-K | 2026-02-24 | 2025-12-31 |
| Major company event | 8-K | 2026-01-29 | 2026-01-27 |
| Major company event | 8-K | 2026-01-27 | 2026-01-22 |
| Insider trade | 4 | 2026-01-06 | 2026-01-02 |
| Insider trade | 4 | 2026-01-06 | 2026-01-02 |
| Insider trade | 4 | 2026-01-06 | 2026-01-02 |
| Insider trade | 4 | 2026-01-06 | 2026-01-02 |
| Insider trade | 4 | 2026-01-06 | 2026-01-02 |
| Insider trade | 4 | 2026-01-06 | 2026-01-02 |