| Filed | Form | Description | |
|---|---|---|---|
| 4/3/25 | DEFA14A | DEFA14A | → |
| 4/3/25 | DEF 14A | DEF 14A | → |
| 4/29/24 | DEFA14A | DEFA14A | → |
| 3/29/24 | DEFA14A | DEFA14A | → |
| 3/29/24 | DEF 14A | DEF 14A | → |
| 3/24/23 | DEFA14A | DEFA14A | → |
| ↓ | |||
| Filed | Form | Description | |
|---|---|---|---|
| 2/19/26 | 4 | 4 | → |
| 2/19/26 | 4 | 4 | → |
| 2/19/26 | 4 | 4 | → |
| 2/19/26 | 4 | 4 | → |
| 2/19/26 | 4 | 4 | → |
| 2/19/26 | 4 | 4 | → |
| ↓ | |||
MDU Resources Group, Inc. -based corporation supplying products and services to regulated energy delivery and utilities related construction materials and services businesses.