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 |
|---|---|---|---|
| SEC correspondence | UPLOAD | 2007-02-09 | - |
| Major company event | 8-K | 2007-02-02 | 2007-02-02 |
| Company correspondence | CORRESP | 2007-01-30 | - |
| Major company event | 8-K | 2006-12-21 | 2006-12-15 |
| Major company event | 8-K | 2006-11-09 | 2006-11-09 |
| Prospectus supplement | 424B5 | 2006-11-09 | - |
| Major company event | 8-K | 2006-11-07 | 2006-11-07 |
| Quarterly report | 10-Q | 2006-11-07 | 2006-09-30 |
| Major company event | 8-K | 2006-10-04 | 2006-09-29 |
| Major company event | 8-K | 2006-10-03 | 2006-09-29 |
| Major company event | 8-K | 2006-08-22 | 2006-08-18 |
| Major company event | 8-K | 2006-08-18 | 2006-08-18 |
| Insider trade | 4 | 2006-08-16 | 2006-08-16 |
| Quarterly report | 10-Q | 2006-08-08 | 2006-06-30 |
| Insider trade | 4 | 2006-06-08 | 2006-06-06 |
| Insider trade | 4 | 2006-06-01 | 2006-05-30 |
| Free writing prospectus | FWP | 2006-05-26 | - |
| Major company event | 8-K | 2006-05-08 | 2006-05-08 |
| Quarterly report | 10-Q | 2006-05-08 | 2006-03-31 |
| Major company event | 8-K | 2006-04-26 | 2006-04-21 |
| Free writing prospectus | FWP | 2006-04-26 | - |
| Annual report to shareholders | ARS | 2006-04-24 | 2005-12-31 |
| Proxy statement | DEF 14A | 2006-04-17 | 2006-05-23 |
| Major company event | 8-K | 2006-04-04 | 2006-03-31 |
| Major company event | 8-K | 2006-04-04 | 2006-03-31 |
| Major company event | 8-K | 2006-04-04 | 2006-03-31 |
| Free writing prospectus | FWP | 2006-03-30 | - |
| Prospectus supplement | 424B5 | 2006-03-30 | - |
| Insider trade | 4 | 2006-03-10 | 2005-08-15 |
| Annual report | 10-K | 2006-03-08 | 2005-12-31 |
| Major company event | 8-K | 2006-03-08 | 2006-03-08 |
| Major company event | 8-K | 2006-03-02 | 2006-02-27 |
| Major company event | 8-K | 2006-02-21 | 2006-01-20 |
| Major company event | 8-K | 2006-01-23 | 2006-01-19 |
| Major company event | 8-K | 2005-12-27 | 2005-12-21 |
| Major company event | 8-K | 2005-11-09 | 2005-11-08 |
| Quarterly report | 10-Q | 2005-11-08 | 2005-09-30 |
| Major company event | 8-K | 2005-10-31 | 2005-10-27 |
| Major company event | 8-K | 2005-10-18 | 2005-10-14 |
| Major company event | 8-K | 2005-10-03 | 2005-09-30 |
| Major company event | 8-K | 2005-08-19 | 2005-08-19 |
| Major company event | 8-K | 2005-08-09 | 2005-08-09 |
| Quarterly report | 10-Q | 2005-08-09 | 2005-06-30 |
| Insider trade | 4 | 2005-05-18 | 2005-05-16 |
| Quarterly report | 10-Q | 2005-05-09 | 2005-03-31 |
| Major company event | 8-K | 2005-05-04 | 2005-04-29 |
| Annual report to shareholders | ARS | 2005-04-07 | 2003-12-31 |
| Proxy statement | DEF 14A | 2005-04-04 | 2005-05-10 |
| U-3A-2/A | - | 2005-03-21 | 2005-02-28 |
| Annual report | 10-K | 2005-03-15 | 2004-12-31 |