BISMARCK, ND
Total Insiders
19
Active leadership & owners
Board Directors
10
Governing body
Corporate Officers
10
Executive management
10%+ Owners
1
Major shareholders
Active Insiders
19
Currently serving
Former Insiders
0
Past roles
| Name & Role | Position | Tenure | Holdings |
|---|---|---|---|
MDU RESOURCES GROUP INC 10% Owner | — | Since Oct 2024 | — |
DELLA ROCCA MICHAEL Director | — | Since Oct 2024 | — |
HERNANDEZ HELENA MERCEDES Director | — | Since Jul 2025 | — |
KIVISTO NICOLE A Director | — | Since Oct 2024 | — |
ROSENTHAL DALE Director | — | Since Feb 2026 | — |
RYAN EDWARD A Director | — | Since Oct 2024 | — |
SPARBY DAVID M Director | — | Since Oct 2024 | — |
THIEDE JEFFREY S DirectorOfficer | President & CEO | Since Feb 2026 | — |
VOLLMER JASON L DirectorOfficer | Treasurer | Since Oct 2024 | — |
WOOD CLARK A. Director | — | Since Oct 2024 | — |