---
schema_version: "secwatch.filing_event.v1"
accession: "0000067716-24-000089"
form_type: "8-K"
ticker: "MDU"
cik: "0000067716"
company_name: "MDU RESOURCES GROUP INC"
filed_at: "2024-09-03T23:59:59+00:00"
generated_at: "2026-05-31T06:42:35.438862+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.65
calibrated_materiality_score: 0.65
confidence: "high"
source: SEC EDGAR
---

# MDU Resources announces anticipated board for Everus spin-off, expects completion in late 2024

## Summary
- Four MDU directors (Rosenthal, Della Rocca, Ryan, Sparby) to resign from MDU board upon Everus spin-off completion.
- Everus board to have seven directors, six independent; Rosenthal to chair; new directors: Wood, Wynn, Thiede (Everus CEO).
- Spin-off expected late 2024, subject to MDU board approval and SEC Form 10 effectiveness.
- Spin-off aims to make MDU a pure-play regulated energy delivery business; expected tax-free to stockholders.

## SEC filing metadata
- accession: 0000067716-24-000089
- form_type: 8-K
- ticker: MDU
- cik: 0000067716
- company_name: MDU RESOURCES GROUP INC
- filed_at: 2024-09-03T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.65
- calibrated_materiality_score: 0.65
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/mdu-20240903.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000067716-24-000089
- JSON: https://secwatch.observer/filing/0000067716-24-000089.json
- Plain text: https://secwatch.observer/filing/0000067716-24-000089.txt

## Key facts
- Executive change
  Edward A. Ryan resigned as Director at MDU RESOURCES GROUP INC.
  - Action: resigned
  - Role: Director
  source text: each of Dale S. Rosenthal, Michael S. Della Rocca, Edward A. Ryan and David M. Sparby (collectively, the “Prospective Everus Construction Directors”) are expected to resign as directors of the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm
- Executive change
  Dale S. Rosenthal resigned as Director at MDU RESOURCES GROUP INC.
  - Action: resigned
  - Role: Director
  source text: each of Dale S. Rosenthal, Michael S. Della Rocca, Edward A. Ryan and David M. Sparby (collectively, the “Prospective Everus Construction Directors”) are expected to resign as directors of the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm
- Executive change
  Michael S. Della Rocca resigned as Director at MDU RESOURCES GROUP INC.
  - Action: resigned
  - Role: Director
  source text: each of Dale S. Rosenthal, Michael S. Della Rocca, Edward A. Ryan and David M. Sparby (collectively, the “Prospective Everus Construction Directors”) are expected to resign as directors of the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm
- Executive change
  David M. Sparby resigned as Director at MDU RESOURCES GROUP INC.
  - Action: resigned
  - Role: Director
  source text: each of Dale S. Rosenthal, Michael S. Della Rocca, Edward A. Ryan and David M. Sparby (collectively, the “Prospective Everus Construction Directors”) are expected to resign as directors of the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/67716/000006771624000089/0000067716-24-000089-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.