MDU RESOURCES GROUP INC — DEFA14A Filings
13 DEFA14A filings on record
This page lists all DEFA14A 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 13 DEFA14A 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 |
|---|---|---|---|---|
| DEFA14A | DEFA14A | 0000067716-25-000032 | Apr 3, 2025 | — |
| DEFA14A | DEFA14A | 0000067716-24-000047 | Apr 29, 2024 | — |
| DEFA14A | DEFA14A | 0000067716-24-000043 | Mar 29, 2024 | — |
| DEFA14A | DEFA14A | 0000067716-23-000036 | Mar 24, 2023 | — |
| DEFA14A | DEFA14A | 0000067716-22-000020 | Mar 25, 2022 | — |
| DEFA14A | MDU RESOURCES GROUP, INC. 2021 PROXY NOTICE | 0000067716-21-000019 | Mar 26, 2021 | — |
| DEFA14A | DEFA14A | 0000067716-20-000021 | Mar 27, 2020 | — |
| DEFA14A | DEFA14A | 0000067716-19-000035 | Mar 22, 2019 | — |
| DEFA14A | DEFA14A | 0000067716-18-000027 | Mar 23, 2018 | — |
| DEFA14A | DEFA14A | 0000067716-17-000031 | Mar 24, 2017 | — |
| DEFA14A | DEFA14A | 0000067716-16-000131 | Apr 14, 2016 | — |
| DEFA14A | DEFA14A | 0000898080-10-000014 | Apr 8, 2010 | — |
| DEFA14A | — | 0000898080-06-000090 | Mar 31, 2006 | — |