Welcome to our dedicated page for Mdu Resources SEC filings (Ticker: MDU), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
The MDU Resources Group, Inc. (NYSE: MDU) SEC filings page on Stock Titan provides direct access to the company’s regulatory disclosures as a regulated energy delivery business. MDU Resources files reports and current updates with the U.S. Securities and Exchange Commission that describe its electric utility, natural gas distribution and pipeline operations, financing activities and corporate governance.
Investors can review annual reports on Form 10-K and quarterly reports on Form 10-Q to understand how MDU Resources presents its business segments, risk factors and financial results. These filings typically include details on its electric generation, transmission and distribution activities, natural gas distribution systems, and its more than 3,800-mile natural gas pipeline and storage network in the Northern Plains. They also discuss capital investment plans, regulatory environments in the states where it operates and the company’s strategy as a pure-play regulated energy delivery company.
Current reports on Form 8-K are especially important for tracking material events at MDU Resources. Recent 8-K filings have described public offerings of common stock with forward sale components, a distribution agreement for at-the-market equity issuance, an amended and restated credit agreement, capital investment plans, and the completion of the spinoff of its construction services subsidiary into Everus Construction Group, Inc. Other 8-Ks cover quarterly earnings releases, changes to the board of directors and other significant corporate developments.
Users can also examine filings related to equity and credit arrangements, such as forward sale agreements, underwriting agreements and revolving credit facilities. These documents explain how MDU Resources funds its multi-year capital program across electric, natural gas and pipeline segments. In addition, proxy materials and other governance-related filings provide insight into board composition and oversight.
Stock Titan enhances access to these documents with AI-powered summaries that highlight the key points in lengthy filings, helping readers quickly identify information on capital plans, regulatory matters, financing structures and segment performance. Real-time updates from EDGAR ensure that new MDU Resources filings, including Forms 10-K, 10-Q and 8-K, as well as any Form 4 insider transaction reports when available, are added promptly so investors can analyze the latest disclosures efficiently.
Jason L. Vollmer, Chief Financial Officer of MDU Resources Group, Inc. (MDU) reported an open-market purchase of 5,000 shares of MDU common stock on 09/08/2025 at a reported price of $16.075 per share. After this transaction Mr. Vollmer directly beneficially owned 344,548.197 shares. He also has indirect beneficial ownership of 8,394.3379 shares held in a 401(k) account by a trustee. The Form 4 was signed by Anthony D. Foti as attorney-in-fact on 09/09/2025. The filing states the purchase was executed in the open market.
Jason L. Vollmer, CFO of MDU Resources Group, Inc. (MDU), purchased 5,000 shares of MDU common stock in an open-market transaction on 08/19/2025 at a price of $16.275 per share. Following the purchase, he beneficially owns 339,548.197 shares directly and additionally holds 8,394.3379 shares indirectly through a 401(k) plan held by a trustee. The Form 4 filing was signed by an attorney-in-fact on behalf of Mr. Vollmer and states the transaction was an open-market purchase.
Tammy J. Miller filed an Initial Statement of Beneficial Ownership (Form 3) for MDU Resources Group, Inc. (MDU). The filing reports that Ms. Miller, identified as a director of the issuer, beneficially owns 3,000 shares of common stock in a direct ownership capacity. The event requiring the statement is dated 08/12/2025, and the filing was signed by an attorney-in-fact on 08/14/2025. No derivative securities, amendments, or additional ownership forms are reported in the document.
MDU Resources Group, Inc. (MDU) filed an Initial Form 3 reporting that Director Charles M. Kelley has no securities beneficially owned as of the triggering event on 08/12/2025. The filing was signed by Anthony D. Foti, Attorney-in-Fact on 08/14/2025. This Form 3 notifies the SEC and the market of the reporting person's relationship to the issuer (listed as Director) and indicates there are currently no direct or indirect equity holdings to disclose.
MDU Resources Group, Inc. increased its Board to nine directors and elected Charles M. Kelley and Tammy J. Miller as nonemployee directors, effective immediately, to serve until the 2026 Annual Meeting of Stockholders. The Board appointed both to the Audit Committee and determined they are independent under NYSE listing standards.
Both will receive the same nonemployee director compensation as other nonemployee directors, prorated for their time of service. The filing incorporates biographical and compensation details by reference to the company’s proxy statement and furnishes a news release as an exhibit.
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