---
schema_version: "secwatch.filing_event.v1"
accession: "0000067716-24-000085"
form_type: "8-K"
ticker: "MDU"
cik: "0000067716"
company_name: "MDU RESOURCES GROUP INC"
filed_at: "2024-08-15T23:59:59+00:00"
generated_at: "2026-05-31T09:09:08.507893+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# MDU Resources expands board to 11, appoints Della Rocca and Durkin; Everus spinoff mid-late 2024

## Summary
- Board increased from 9 to 11; Michael S. Della Rocca and Marian M. Durkin appointed effective Aug. 15, 2024.
- Della Rocca (former AECOM Americas CEO) joins Audit and Environmental/Sustainability committees.
- Durkin (former Avista SVP, general counsel) joins Compensation and Nominating/Governance committees.
- Company reiterates plan to spin off Everus Construction Group late 2024 to become pure-play regulated energy delivery.

## SEC filing metadata
- accession: 0000067716-24-000085
- form_type: 8-K
- ticker: MDU
- cik: 0000067716
- company_name: MDU RESOURCES GROUP INC
- filed_at: 2024-08-15T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/67716/000006771624000085/0000067716-24-000085-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/67716/000006771624000085/mdu-20240815.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000067716-24-000085
- JSON: https://secwatch.observer/filing/0000067716-24-000085.json
- Plain text: https://secwatch.observer/filing/0000067716-24-000085.txt

## Key facts
- Executive change
  Marian M. Durkin was appointed as director at MDU RESOURCES GROUP INC.
  - Action: appointed
  source text: appointed Michael S. Della Rocca and Marian M. Durkin to the Board, in each case, effective August 15, 2024, to serve until the 2025 Annual Meeting of Stockholders.
  evidence_url: https://www.sec.gov/Archives/edgar/data/67716/000006771624000085/0000067716-24-000085-index.htm
- Executive change
  Michael S. Della Rocca was appointed as director at MDU RESOURCES GROUP INC.
  - Action: appointed
  source text: appointed Michael S. Della Rocca and Marian M. Durkin to the Board, in each case, effective August 15, 2024, to serve until the 2025 Annual Meeting of Stockholders.
  evidence_url: https://www.sec.gov/Archives/edgar/data/67716/000006771624000085/0000067716-24-000085-index.htm

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