MDU RESOURCES GROUP INC — 424B2 Filings
16 424B2 filings on record
This page lists all 424B2 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 16 424B2 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 |
|---|---|---|---|---|
| 424B2 | PROSPECTUS SUPPLEMENT | 0000067716-14-000067 | May 16, 2014 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-08-000423 | Sep 5, 2008 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-01-500345 | Dec 31, 2001 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-01-500344 | Dec 31, 2001 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-01-500178 | Sep 28, 2001 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-01-000067 | Mar 5, 2001 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-01-000028 | Feb 1, 2001 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-01-000027 | Feb 1, 2001 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-00-000353 | Dec 22, 2000 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-00-000313 | Nov 17, 2000 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-00-000281 | Oct 19, 2000 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-00-000240 | Sep 8, 2000 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-00-000232 | Sep 6, 2000 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-00-000199 | Aug 8, 2000 | — |
| 424B2 | PROSPECTUS SUPPLEMENT | 0000950120-00-000170 | Jul 10, 2000 | — |
| 424B2 | PROSPECTUS | 0000930413-96-000250 | Aug 2, 1996 | — |