Mge Energy Inc SEC filings MGEE
Mge Energy Inc has 833 filings in SEC EDGAR's recent list, going back to Nov 2, 2001. Its latest annual report, Form ARS, was filed on Apr 2, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 4, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 5, 2026 (regulation fd disclosure). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B5 | Prospectus supplement | May 7, 2026 | — |
| 424B5 | Prospectus supplement | May 6, 2026 | — |
| 424B5 | Prospectus supplement | Feb 24, 2026 | — |
| S-3ASR | Automatic shelf registration | Feb 24, 2026 | — |
| S-3ASR | Automatic shelf registration | May 8, 2023 | — |
| S-8 | Employee stock plan registration | Dec 18, 2020 | — |
| 424B2 | Prospectus | May 14, 2020 | — |
| 424B2 | Prospectus | May 12, 2020 | — |
| S-3ASR | Automatic shelf registration | May 12, 2020 | — |
| 424B3 | Prospectus | Jan 8, 2018 | — |
| S-3ASR | Automatic shelf registration | Jul 14, 2017 | — |
| S-3ASR | Automatic shelf registration | Jul 15, 2014 | — |
| FWP | Free writing prospectus | May 8, 2014 | — |
| S-3ASR | Automatic shelf registration | Aug 24, 2011 | — |
| S-3ASR | Automatic shelf registration | Dec 22, 2010 | — |
| S-3ASR | Automatic shelf registration | Nov 7, 2008 | — |
| 424B5 | Prospectus supplement | Nov 9, 2006 | — |
| FWP | Free writing prospectus | May 26, 2006 | — |
| FWP | Free writing prospectus | Apr 26, 2006 | — |
| FWP | Free writing prospectus | Mar 30, 2006 | — |
| 424B5 | Prospectus supplement | Mar 30, 2006 | — |
| 424B2 | Prospectus | Sep 10, 2004 | — |
| 424B5 | Prospectus supplement | Sep 8, 2004 | — |
| 424B5 | Prospectus supplement | Aug 18, 2003 | — |
| 424B5 | Prospectus supplement | Aug 18, 2003 | — |
| POS AM | Form s-3, amendment no. 1 | Jun 12, 2003 | — |
| S-3 | Shelf registration | Mar 7, 2003 | — |
| S-3DPOS | Post-effective amendments | Aug 12, 2002 | — |
| 424B3 | Prospectus | Apr 3, 2002 | — |
| S-4/A | Amendment to registration statement | Mar 22, 2002 | — |
| S-4/A | Amendment to registration statement | Feb 27, 2002 | — |
| S-4/A | Amendment to registration statement | Feb 13, 2002 | — |
| S-4/A | Amendment #1 to registration statement | Dec 27, 2001 | — |
| S-4 | Registration for a merger or exchange | Nov 2, 2001 | — |
Showing 34 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Electric, Gas & Sanitary Services (SIC 4900)
- Listed as
- MGEE (Nasdaq)
- Fiscal year ends
- December 31
- Incorporated in
- WI
- Headquarters
- Madison, WI
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1161728
Source: SEC EDGAR filings. This is company-reported data, not investment advice.