# Filing Detail

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000067716-25-000032
Filing Date
2025-04-03
Accepted
2025-04-03 08:19:26
Documents
3

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFA14A | a2025voterregistrationidca.htm | DEFA14A | 10492
2 |  | proxynotice2025_pagex1a.jpg | GRAPHIC | 511569
3 |  | proxynotice2025_pagex2a.jpg | GRAPHIC | 400843
| Complete submission text file | 0000067716-25-000032.txt |  | 1267798

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.: 25807586
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)
(CF Office: 01 Energy & Transportation)