Companies: 10,795·Total market cap: $144.5T
MDU Resources Group, Inc.

MDU Resources Group, Inc.

MDUNYSEIndustrials● Active
$21.34
$-0.03(-0.12%)
Market Cap$4.5B
P/E Ratio
52W High$22.98
52W Low$15.76
SEC Filings

MDU Resources Group, Inc. (MDU) SEC Filings & 10-K Annual Reports

SEC EDGAR regulatory submissions (10-K, 10-Q, 8-K), latest forms, and full filing history — quick links to financials and earnings below.

SEC EDGAR · data.sec.gov · CIK 0000067716 · MDU · NYSE · as of Jun 8, 2026

Filing snapshot

1,000+
Total Filings
8-K
Latest Form
2026-05-13
Most Recent
1987
Filing Since

Source: SEC EDGAR (data.sec.gov) · CIK 0000067716 · Updated hourly · Not investment advice

Latest Annual Report

10-K · Annual ReportFY
Filed Date
2026-02-20
Fiscal Year End
Feb 20, 2026
Accession No.
0000067716-26-000014
Primary Document
mdu-20251231.htm
Source: data.sec.gov · CIK 0000067716 · Accession 0000067716-26-000014

Latest Key Filings

10-QQuarterly Report
MDU RESOURCES FORM 10-Q
2026-05-07
8-KCurrent Report
8-K
2026-05-13Material Event
Form 4Insider Activity
Ownership Change Disclosures

Executive & director trade disclosures. Full buy/sell sentiment analysis on the dedicated tab.

SEC Filing History

Hide Form 4 / 144
8-KCurrent Report
8-K
2026-05-13
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-05-13
View
10-QQuarterly Report
MDU RESOURCES FORM 10-Q
2026-05-07
View
8-KCurrent Report
MDU RESOURCES FORM 8-K EARNINGS RELEASE
2026-05-07
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-04-30
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-04-29
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-04-09
View
ARSARS
ARS
2026-04-01
View
DEFA14AProxy Statement (Additional)
DEFA14A
2026-04-01
View
DEF 14AProxy Statement
DEF 14A
2026-04-01
View
SCHEDULE 13G/ASCHEDULE 13G/A
SCHEDULE 13G/A
2026-03-27
View
10-KAnnual Report
10-K
2026-02-20
View
SCHEDULE 13GSCHEDULE 13G
SCHEDULE 13G
2026-02-11
View
8-KCurrent Report
MDU RESOURCES GROUP, INC. FORM 8-K
2026-02-05
View
8-KCurrent Report
8-K
2026-01-16
View
Showing 1–15 of 517 filingsForm 4 / 144 hidden· 1000 total in EDGAR

About SEC Filings & 10-K Annual Reports

Data source: SEC EDGAR (data.sec.gov)  |  Updated: Hourly  |  CIK: 0000067716  |  Exchange: NYSE · Industrials

MDU Resources Group, Inc. (NYSE: MDU) has submitted 1,000+ documents to the U.S. Securities and Exchange Commission (SEC) since its IPO in 1987. As a Industrials sector company with CIK 0000067716, all filings are publicly accessible via the EDGAR database at no cost.

The annual 10-K report is MDU Resources Group, Inc.'s most comprehensive regulatory disclosure. The most recent MDU Resources Group, Inc. 10-K was filed on 2026-02-20 for fiscal year ending 2026. Historical MDU 10-K annual reports are available from 2010 through 2026.

Investors researching MDU Resources Group, Inc. SEC filings can access 10-K annual reports, quarterly 10-Q reports, material event 8-K filings, and proxy statements directly from the links above. All documents are sourced from the official SEC EDGAR system.

Source: SEC EDGAR · data.sec.gov · SEC Form 10-K · SEC Form 10-Q · SEC Form 8-K2026-06-08

Frequently Asked Questions

MDU SEC Filings · 8 questions

MDU Resources Group, Inc. (MDU) SEC filings are publicly available on this page and on the official SEC EDGAR database at sec.gov. You can browse all 1,000+ filings and access original documents at no cost. MDU Resources Group, Inc.'s CIK is 0000067716.

MDU SEC filingsMDU Resources Group, Inc. SEC documentsfind MDU 10-K