MDU RESOURCES GROUP INC — DEF 14A Filings
32 DEF 14A filings on record
This page lists all DEF 14A filings submitted to the SEC by MDU RESOURCES GROUP INC (MDU), sorted by most recent first. Each row links to the full filing on EdgarLookup. MDU RESOURCES GROUP INC has filed 32 DEF 14A documents with the SEC since 2010. To view all SEC filings by MDU RESOURCES GROUP INC, see the full filings list.
All
10-K
10-K/A
10-Q
11-K
11-K/A
15-12B
25-NSE
3
3/A
4
4/A
424B2
424B3
424B5
5
5/A
8-A12B
8-A12B/A
8-K
8-K/A
8-K12B
ARS
AW
CORRESP
DEF 14A
DEFA14A
DEFR14A
NO ACT
POS AM
POSASR
PRE 14A
PRER14A
S-3
S-3/A
S-3ASR
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13G
SCHEDULE 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| DEF 14A | DEF 14A | 0000067716-25-000031 | Apr 3, 2025 | May 13, 2025 |
| DEF 14A | DEF 14A | 0000067716-24-000042 | Mar 29, 2024 | May 14, 2024 |
| DEF 14A | DEF 14A | 0000067716-23-000035 | Mar 24, 2023 | — |
| DEF 14A | MDU RESOURCES GROUP, INC. 2022 PROXY STATEMENT | 0000067716-22-000018 | Mar 25, 2022 | May 10, 2022 |
| DEF 14A | MDU RESOURCES GROUP, INC. 2021 PROXY STATEMENT | 0000067716-21-000018 | Mar 26, 2021 | May 11, 2021 |
| DEF 14A | DEF 14A | 0000067716-20-000020 | Mar 27, 2020 | May 12, 2020 |
| DEF 14A | DEF 14A | 0000067716-19-000034 | Mar 22, 2019 | May 7, 2019 |
| DEF 14A | DEF 14A | 0000067716-18-000025 | Mar 23, 2018 | May 8, 2018 |
| DEF 14A | DEF 14A | 0000067716-17-000029 | Mar 24, 2017 | — |
| DEF 14A | DEF 14A | 0000067716-16-000124 | Mar 16, 2016 | — |
| DEF 14A | DEF 14A | 0000067716-15-000035 | Mar 18, 2015 | Apr 28, 2015 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0000897101-14-000316 | Mar 12, 2014 | Apr 22, 2014 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0000897101-13-000337 | Mar 13, 2013 | Apr 23, 2013 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0000897101-12-000421 | Mar 9, 2012 | Apr 24, 2012 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0000897101-11-000394 | Mar 11, 2011 | Apr 26, 2011 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0000897101-10-000528 | Mar 12, 2010 | Apr 27, 2010 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0000897101-09-000470 | Mar 10, 2009 | Apr 28, 2009 |
| DEF 14A | DEFINITIVE PROXY STATEMENT DATED 04-22-2008 | 0000897101-08-000511 | Mar 7, 2008 | Apr 22, 2008 |
| DEF 14A | DEF 14A | 0001047469-07-001584 | Mar 6, 2007 | Apr 24, 2007 |
| DEF 14A | DEF 14A | 0001047469-06-002897 | Mar 6, 2006 | Apr 25, 2006 |
| DEF 14A | DEF 14A | 0001047469-05-006132 | Mar 11, 2005 | Apr 26, 2005 |
| DEF 14A | DEF 14A | 0001047469-04-007597 | Mar 12, 2004 | Apr 27, 2004 |
| DEF 14A | DEF 14A | 0001047469-03-007872 | Mar 6, 2003 | Apr 22, 2003 |
| DEF 14A | DEF 14A | 0000912057-02-008718 | Mar 5, 2002 | Apr 23, 2002 |
| DEF 14A | DEF 14A | 0000912057-01-502769 | Mar 7, 2001 | Apr 24, 2001 |
| DEF 14A | DEF 14A | 0000912057-00-010425 | Mar 8, 2000 | Apr 25, 2000 |
| DEF 14A | DEF 14A | 0001047469-99-009101 | Mar 9, 1999 | Apr 27, 1999 |
| DEF 14A | DEF 14A | 0001047469-98-009049 | Mar 9, 1998 | Apr 28, 1998 |
| DEF 14A | DEFINITIVE PROXY STATEMENT | 0000930413-97-000133 | Feb 28, 1997 | Apr 22, 1997 |
| DEF 14A | SCHEDULE 14A | 0000891554-96-000142 | Mar 4, 1996 | Dec 31, 1995 |
| DEF 14A | DEFINITIVE NOTICE AND PROXY STATEMENT | 0000891554-95-000009 | Feb 13, 1995 | Dec 31, 1994 |
| DEF 14A | — | 0000890163-94-000012 | Mar 1, 1994 | Apr 26, 1994 |