MGE ENERGY INC SEC EDGAR Filings (CIK 0001161728)

SEC EDGAR filings, ownership reports, and insider transactions for MGE ENERGY INC.

Symbol
MGEE on Nasdaq
Industry
Electric, Gas & Sanitary Services (Office Of Energy & Transportation)
Business address
133 South Blair Street, Po Box 1231, Madison, WI, 53701-1231
State of incorporation
WI
Fiscal year end
31 December
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MGE ENERGY INC has filed 779 SEC EDGAR filings since 02 Nov 2001

Latest Filings

Recent SEC filings for MGE ENERGY INC including 4, 8-K, 10-Q and more.

Form type Document Filing Description Filing date Reporting date File number(s)
4 Open 4 document View SEC filing for 4 4 06 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 4 06 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 4 06 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 4 06 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 4 06 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 4 06 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 4 06 Jan 2026 02 Jan 2026
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 4 05 Jan 2026 31 Dec 2025
4 Open 4 document View SEC filing for 4 4 08 Dec 2025 05 Dec 2025
4 Open 4 document View SEC filing for 4 4 08 Dec 2025 04 Dec 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Nov 2025 07 Nov 2025 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 Nov 2025 05 Nov 2025 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 Nov 2025 30 Sep 2025 000-49965
SCHEDULE 13G/A Open SCHEDULE 13G/A document View SEC filing for SCHEDULE 13G/A 17 Oct 2025 005-78824
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Oct 2025 14 Oct 2025 000-49965
4 Open 4 document View SEC filing for 4 4 09 Sep 2025 08 Sep 2025
4 Open 4 document View SEC filing for 4 4 18 Aug 2025 15 Aug 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Aug 2025 15 Aug 2025 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Aug 2025 06 Aug 2025 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Aug 2025 30 Jun 2025 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 May 2025 20 May 2025 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 May 2025 16 May 2025 000-49965
SCHEDULE 13G Open SCHEDULE 13G document View SEC filing for SCHEDULE 13G 13 May 2025 005-78824
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 May 2025 07 May 2025 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 May 2025 31 Mar 2025 000-49965
4 Open 4 document View SEC filing for 4 4 28 Apr 2025 25 Apr 2025
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 21 Apr 2025 000-49965
DEFR14A Open DEFR14A document View SEC filing for DEFR14A DEFR14A 08 Apr 2025 000-49965
ARS Open ARS document View SEC filing for ARS ARS 04 Apr 2025 31 Dec 2024 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 04 Apr 2025 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 04 Apr 2025 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 04 Apr 2025 000-49965
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 04 Apr 2025 03 Apr 2025 000-49965
4 Open 4 document View SEC filing for 4 4 13 Mar 2025 12 Mar 2025
4 Open 4 document View SEC filing for 4 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 05 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 03 Mar 2025
4 Open 4 document View SEC filing for 4 4 04 Mar 2025 03 Mar 2025
3 Open 3 document View SEC filing for 3 3 03 Mar 2025 01 Mar 2025
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 26 Feb 2025 21 Feb 2025 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Feb 2025 25 Feb 2025 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 25 Feb 2025 25 Feb 2025 000-49965
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 25 Feb 2025 31 Dec 2024 000-49965
4 Open 4 document View SEC filing for 4 4 06 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 4 06 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 4 06 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 4 06 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 4 06 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 4 06 Jan 2025 02 Jan 2025
4 Open 4 document View SEC filing for 4 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 4 03 Jan 2025 31 Dec 2024
4 Open 4 document View SEC filing for 4 4 03 Jan 2025 31 Dec 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Dec 2024 04 Dec 2024 000-49965
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Nov 2024 005-78824
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 12 Nov 2024 005-78824
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Nov 2024 08 Nov 2024 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Nov 2024 06 Nov 2024 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Nov 2024 06 Nov 2024 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 06 Nov 2024 30 Sep 2024 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 Nov 2024 31 Oct 2024 000-49965
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 04 Nov 2024 005-78824
4 Open 4 document View SEC filing for 4 4 26 Aug 2024 23 Aug 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Aug 2024 16 Aug 2024 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Aug 2024 07 Aug 2024 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 07 Aug 2024 07 Aug 2024 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 07 Aug 2024 30 Jun 2024 000-49965
3 Open 3 document View SEC filing for 3 3 02 Jul 2024 01 Jul 2024
4 Open 4 document View SEC filing for 4 4 31 May 2024 30 May 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 May 2024 21 May 2024 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 May 2024 09 May 2024 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 May 2024 08 May 2024 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 08 May 2024 31 Mar 2024 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 24 Apr 2024 000-49965
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 05 Apr 2024 005-78824
ARS Open ARS document View SEC filing for ARS ARS 05 Apr 2024 31 Dec 2023 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 05 Apr 2024 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 05 Apr 2024 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A DEFA14A 05 Apr 2024 000-49965
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 05 Apr 2024 31 Dec 2023 000-49965
SC 13G Open SC 13G document View SEC filing for SC 13G 21 Mar 2024 005-78824
4 Open 4 document View SEC filing for 4 4 07 Mar 2024 06 Mar 2024
4 Open 4 document View SEC filing for 4 4 05 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 05 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 05 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 05 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 05 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 05 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 05 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
4 Open 4 document View SEC filing for 4 4 04 Mar 2024 01 Mar 2024
3 Open 3 document View SEC filing for 3 3 01 Mar 2024 01 Mar 2024
3 Open 3 document View SEC filing for 3 3 01 Mar 2024 01 Mar 2024
3 Open 3 document View SEC filing for 3 3 01 Mar 2024 01 Mar 2024
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Feb 2024 16 Feb 2024 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Feb 2024 21 Feb 2024 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 21 Feb 2024 21 Feb 2024 000-49965
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 21 Feb 2024 31 Dec 2023 000-49965
SC 13G Open SC 13G document View SEC filing for SC 13G 14 Feb 2024 005-78824
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 13 Feb 2024 005-78824
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 25 Jan 2024 005-78824
4/A Open 4/A document View SEC filing for 4/A 4/A 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 4 03 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 4 02 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 4 02 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 4 02 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 4 02 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 4 02 Jan 2024 31 Dec 2023
4 Open 4 document View SEC filing for 4 4 02 Jan 2024 31 Dec 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Dec 2023 15 Dec 2023 000-49965
4 Open 4 document View SEC filing for 4 4 12 Dec 2023 11 Dec 2023
4 Open 4 document View SEC filing for 4 4 07 Dec 2023 06 Dec 2023
4 Open 4 document View SEC filing for 4 4 07 Dec 2023 06 Dec 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 16 Nov 2023 15 Nov 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Nov 2023 08 Nov 2023 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Nov 2023 02 Nov 2023 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 02 Nov 2023 02 Nov 2023 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 02 Nov 2023 30 Sep 2023 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Sep 2023 15 Sep 2023 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 06 Sep 2023 31 Aug 2023 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 29 Aug 2023 25 Aug 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 Aug 2023 18 Aug 2023 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Aug 2023 04 Aug 2023 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Aug 2023 03 Aug 2023 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 Aug 2023 30 Jun 2023 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 May 2023 23 May 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 18 May 2023 16 May 2023 000-49965
S-3ASR Open S-3ASR document View SEC filing for S-3ASR FORM S-3 (ASR) 08 May 2023 333-271733
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 May 2023 05 May 2023 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 May 2023 04 May 2023 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 May 2023 31 Mar 2023 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A MGE ENERGY REMINDER TO VOTE 21 Apr 2023 000-49965
ARS Open ARS document View SEC filing for ARS ANNUAL REPORT TO SECURITY HOLDERS 29 Mar 2023 31 Dec 2022 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A VIDEO TRANSCRIPTION 29 Mar 2023 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A ADDITIONAL PROXY MATERIAL 29 Mar 2023 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A ADDITIONAL PROXY MATERIAL 29 Mar 2023 000-49965
DEF 14A Open DEF 14A document | Open XBRL data View SEC filing for DEF 14A DEF 14A 29 Mar 2023 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Mar 2023 10 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 13 Mar 2023 10 Mar 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 08 Mar 2023 06 Mar 2023 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Mar 2023 03 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2023 01 Mar 2023
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Feb 2023 17 Feb 2023 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 22 Feb 2023 22 Feb 2023 000-49965
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 22 Feb 2023 31 Dec 2022 000-49965
SC 13G Open SC 13G document View SEC filing for SC 13G 14 Feb 2023 005-78824
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 14 Feb 2023 005-78824
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 09 Feb 2023 005-78824
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 01 Feb 2023 30 Jan 2023 000-49965
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 31 Jan 2023 005-78824
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 16 Dec 2022 16 Dec 2022 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 17 Nov 2022 15 Nov 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 10 Nov 2022 10 Nov 2022 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 09 Nov 2022 08 Nov 2022 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Nov 2022 03 Nov 2022 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 03 Nov 2022 30 Sep 2022 000-49965
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 18 Feb 2022
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 18 Feb 2022
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 18 Feb 2022
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
3/A Open 3/A document View SEC filing for 3/A PRIMARY DOCUMENT 11 Oct 2022 01 May 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
3/A Open 3/A document View SEC filing for 3/A PRIMARY DOCUMENT 11 Oct 2022 01 May 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Oct 2022 19 Feb 2021
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 23 Sep 2022
CORRESP Open CORRESP document View SEC filing for CORRESP 13 Sep 2022
UPLOAD Open UPLOAD document View SEC filing for UPLOAD 07 Sep 2022
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 01 Sep 2022 30 Aug 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 Aug 2022 19 Aug 2022 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Aug 2022 04 Aug 2022 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Aug 2022 30 Jun 2022 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 May 2022 25 May 2022
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 26 May 2022 25 May 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 19 May 2022 17 May 2022 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A 09 May 2022 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 05 May 2022 05 May 2022 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 05 May 2022 31 Mar 2022 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A 14 Apr 2022 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A ADDITIONAL PROXY MATERIAL 30 Mar 2022 000-49965
DEF 14A Open DEF 14A document View SEC filing for DEF 14A MGE ENERGY DEFINITIVE PROXY STATEMENT 30 Mar 2022 30 Mar 2022 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 15 Mar 2022 11 Mar 2022
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Mar 2022 04 Mar 2022
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 03 Mar 2022 01 Mar 2022
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 23 Feb 2022 23 Feb 2022 000-49965
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K 10-K 23 Feb 2022 31 Dec 2021 000-49965
SC 13G Open SC 13G document View SEC filing for SC 13G 14 Feb 2022 005-78824
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 09 Feb 2022 005-78824
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 03 Feb 2022 005-78824
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 23 Nov 2021 22 Nov 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 04 Nov 2021 04 Nov 2021 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q 10-Q 04 Nov 2021 30 Sep 2021 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 03 Nov 2021 03 Nov 2021 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K 8-K 15 Oct 2021 15 Oct 2021 000-49965
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 07 Sep 2021 01 Sep 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 30 Aug 2021 26 Aug 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 20 Aug 2021 20 Aug 2021 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 05 Aug 2021 05 Aug 2021 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 05 Aug 2021 30 Jun 2021 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 21 Jul 2021 16 Jul 2021 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Jun 2021 03 Jun 2021
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 27 May 2021 25 May 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 20 May 2021 18 May 2021 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 13 May 2021 10 May 2021 000-49965
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 10 May 2021 01 May 2021
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 10 May 2021 01 May 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 06 May 2021 06 May 2021 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 06 May 2021 31 Mar 2021 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A FORM DEFA 14A 26 Apr 2021 000-49965
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 21 Apr 2021 16 Apr 2021 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A FORM DEFA 14A 31 Mar 2021 000-49965
DEFA14A Open DEFA14A document View SEC filing for DEFA14A MGE ENERGY VIDEO TRANSCRIPTION 31 Mar 2021 000-49965
DEF 14A Open DEF 14A document View SEC filing for DEF 14A FORM DEF 14A 31 Mar 2021 31 Mar 2021 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Mar 2021 08 Mar 2021
8-K Open 8-K document | Open XBRL data View SEC filing for 8-K FORM 8-K 24 Feb 2021 24 Feb 2021 000-49965
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 24 Feb 2021 31 Dec 2020 000-49965
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 10 Feb 2021 005-78824
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A SCHEDULE 13G/A 10 Feb 2021 005-78824
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 04 Aug 2017 30 Jun 2017 000-49965
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DEF 14A Open DEF 14A document View SEC filing for DEF 14A MGE ENERGY DEFINITIVE PROXY STATEMENT 28 Mar 2016 28 Mar 2016 000-49965
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ARS Open ARS document View SEC filing for ARS AUTO-GENERATED PAPER DOCUMENT 31 Mar 2015 31 Dec 2014 000-49965
DEF 14A Open DEF 14A document View SEC filing for DEF 14A FORM DEF 14A 27 Mar 2015 27 Mar 2015 000-49965
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SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 11 Feb 2015 005-78824
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 10 Feb 2015 10 Feb 2015 000-49965
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K 06 Nov 2014 06 Nov 2014 000-49965
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K 22 Sep 2014 19 Sep 2014 000-49965
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 27 Aug 2014 27 Aug 2014 000-49965
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10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 06 Aug 2014 30 Jun 2014 000-49965
S-3ASR Open S-3ASR document View SEC filing for S-3ASR FORM S-3 15 Jul 2014 333-197423
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 23 May 2014 20 May 2014 000-49965
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FWP Open FWP document View SEC filing for FWP 08 May 2014 333-176478
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ARS Open ARS document View SEC filing for ARS AUTO-GENERATED PAPER DOCUMENT 04 Apr 2014 31 Dec 2013 000-49965
DEF 14A Open DEF 14A document View SEC filing for DEF 14A MGE ENERGY PROXY STATEMENT 28 Mar 2014 28 Mar 2014 000-49965
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PRE 14A Open PRE 14A document View SEC filing for PRE 14A MGE PRELIMINARY PROXY STATEMENT 18 Feb 2014 18 Feb 2014 000-49965
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K 20 Dec 2013 20 Dec 2013 000-49965
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K 16 Aug 2013 16 Aug 2013 000-49965
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ARS Open ARS document View SEC filing for ARS AUTO-GENERATED PAPER DOCUMENT 01 Apr 2013 31 Dec 2012 000-49965
DEFR14A Open DEFR14A document View SEC filing for DEFR14A MGEE DEFINITIVE PROXY 28 Mar 2013 000-49965
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4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Mar 2013 05 Mar 2013
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UPLOAD Open UPLOAD document View SEC filing for UPLOAD 09 Nov 2012
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CORRESP Open CORRESP document View SEC filing for CORRESP 25 Oct 2012
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K 24 May 2012 22 May 2012 000-49965
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ARS Open ARS document View SEC filing for ARS AUTO-GENERATED PAPER DOCUMENT 03 Apr 2012 31 Dec 2011 000-49965
DEF 14A Open DEF 14A document View SEC filing for DEF 14A 30 Mar 2012 30 Mar 2012 000-49965
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K 24 Feb 2012 24 Feb 2012 000-49965
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SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 13 Feb 2012 005-78824
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8-K/A Open 8-K/A document View SEC filing for 8-K/A FORM 8-K/A 25 Aug 2011 17 May 2011 000-49965
S-3ASR Open S-3ASR document View SEC filing for S-3ASR FORM S-3 ASR 24 Aug 2011 333-176478
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4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 22 Jul 2011 22 Jul 2011
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8-K Open 8-K document View SEC filing for 8-K FORM 8-K 21 Apr 2011 15 Apr 2011 000-49965
ARS Open ARS document View SEC filing for ARS AUTO-GENERATED PAPER DOCUMENT 04 Apr 2011 31 Dec 2010 000-49965
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 24 Mar 2011 18 Mar 2011 000-49965
DEF 14A Open DEF 14A document View SEC filing for DEF 14A FORM DEF 14A - PROXY STATEMENT 23 Mar 2011 17 May 2011 000-49965
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Mar 2011 02 Mar 2011
4/A Open 4/A document View SEC filing for 4/A PRIMARY DOCUMENT 11 Mar 2011 08 Mar 2011
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 10 Mar 2011 08 Mar 2011
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 03 Mar 2011 28 Feb 2011 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 02 Mar 2011 01 Mar 2011
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 24 Feb 2011 24 Feb 2011 000-49965
10-K Open 10-K document | Open XBRL data View SEC filing for 10-K FORM 10-K 24 Feb 2011 31 Dec 2010 000-49965
SC 13G/A Open SC 13G/A document View SEC filing for SC 13G/A 02 Feb 2011 005-78824
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 12 Jan 2011 12 Jan 2011 000-49965
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 28 Dec 2010 28 Dec 2010 000-49965
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 23 Dec 2010 20 Dec 2010 000-49965
S-3ASR Open S-3ASR document View SEC filing for S-3ASR FORM S-3 22 Dec 2010 333-171336
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 24 Nov 2010 23 Nov 2010
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 16 Nov 2010 15 Nov 2010
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 04 Nov 2010 04 Nov 2010 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 04 Nov 2010 30 Sep 2010 000-49965
3 Open 3 document View SEC filing for 3 PRIMARY DOCUMENT 23 Sep 2010 17 Sep 2010
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 08 Sep 2010 07 Sep 2010
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 24 Aug 2010 24 Aug 2010 000-49965
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 20 Aug 2010 20 Aug 2010 000-49965
10-Q/A Open 10-Q/A document | Open XBRL data View SEC filing for 10-Q/A FORM 10-Q 05 Aug 2010 30 Jun 2010 000-49965
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 05 Aug 2010 05 Aug 2010 000-49965
10-Q Open 10-Q document | Open XBRL data View SEC filing for 10-Q FORM 10-Q 05 Aug 2010 30 Jun 2010 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 07 Jun 2010 04 Jun 2010
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 25 May 2010 24 May 2010
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 21 May 2010 18 May 2010 000-49965
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 06 May 2010 06 May 2010 000-49965
10-Q Open 10-Q document View SEC filing for 10-Q FORM 10-Q 06 May 2010 31 Mar 2010 000-49965
ARS Open ARS document View SEC filing for ARS AUTO-GENERATED PAPER DOCUMENT 29 Mar 2010 31 Dec 2009 000-49965
DEF 14A Open DEF 14A document View SEC filing for DEF 14A PROXY STATEMENT 24 Mar 2010 18 May 2010 000-49965
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 12 Mar 2010 11 Mar 2010
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 11 Mar 2010 09 Mar 2010
4 Open 4 document View SEC filing for 4 PRIMARY DOCUMENT 04 Mar 2010 02 Mar 2010
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 25 Feb 2010 25 Feb 2010 000-49965
10-K Open 10-K document View SEC filing for 10-K FORM 10-K 25 Feb 2010 31 Dec 2009 000-49965
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 09 Feb 2010 04 Feb 2010 000-49965
8-K Open 8-K document View SEC filing for 8-K FORM 8-K 03 Feb 2010 02 Feb 2010 000-49965
SC 13G Open SC 13G document View SEC filing for SC 13G 29 Jan 2010 005-78824

About this filer

MGE ENERGY INC files with the SEC under CIK 0001161728. This page aggregates EDGAR filings and related ownership activity.

Industry: Electric, Gas & Sanitary Services.

See insider transactions for this issuer.

FAQ

What is a CIK?
A Central Index Key (CIK) is a unique identifier assigned by the SEC to each filer.
Why are some filings missing?
New filings appear as the SEC updates EDGAR, and older records can vary by availability.
How often is this page updated?
Updates follow new EDGAR submissions and periodic data refreshes.

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