# Filing Detail

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000067716-21-000019
Filing Date
2021-03-26
Accepted
2021-03-26 11:30:39
Documents
3

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | MDU RESOURCES GROUP, INC. 2021 PROXY NOTICE | a2021proxynotice-nextgen.htm | DEFA14A | 21835
2 | GRAPHIC | notice-2x011a.jpg | GRAPHIC | 3334379
3 | GRAPHIC | notice-2x021a.jpg | GRAPHIC | 1724641
| Complete submission text file | 0000067716-21-000019.txt |  | 6544203

Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503 701-530-1000
MDU RESOURCES GROUP INC (Filer) CIK: 0000067716 (see all company filings)

EIN.: 301133956 | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-03480 | Film No.: 21775721
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)