MDU RESOURCES GROUP INC — 4/A Filings
8 4/A filings on record
This page lists all 4/A 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 8 4/A 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 |
|---|---|---|---|---|
| 4/A | PRIMARY DOCUMENT | 0001127602-17-007339 | Feb 21, 2017 | Feb 16, 2017 |
| 4/A | PRIMARY DOCUMENT | 0001127602-16-039478 | Feb 4, 2016 | Nov 18, 2015 |
| 4/A | PRIMARY DOCUMENT | 0000067716-14-000135 | Dec 29, 2014 | May 7, 2013 |
| 4/A | PRIMARY DOCUMENT | 0000067716-08-000103 | May 16, 2008 | May 9, 2008 |
| 4/A | PRIMARY DOCUMENT | 0000067716-04-000121 | Sep 3, 2004 | Aug 31, 2004 |
| 4/A | PRIMARY DOCUMENT | 0000067716-04-000048 | Mar 15, 2004 | Feb 18, 2004 |
| 4/A | PRIMARY DOCUMENT | 0000067716-04-000047 | Mar 2, 2004 | Feb 17, 2004 |
| 4/A | PRIMARY DOCUMENT | 0000067716-04-000007 | Jan 5, 2004 | Dec 31, 2003 |