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[Form 3] MDU Resources Group, Inc. Initial Statement of Beneficial Ownership

Filing Impact
(Low)
Filing Sentiment
(Neutral)
Form Type
3
Rhea-AI Filing Summary

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.

Tammy J. Miller ha presentato una Dichiarazione Iniziale di Possesso Beneficiale (Mod. 3) relativa a MDU Resources Group, Inc. (MDU). La comunicazione indica che la sig.ra Miller, identificata come direttore dell'emittente, detiene in proprietà diretta 3.000 azioni ordinarie. L'evento che ha reso necessaria la dichiarazione è datato 12/08/2025 e il documento è stato firmato per procura il 14/08/2025. Non sono segnalati titoli derivati, emendamenti o ulteriori moduli di proprietà.

Tammy J. Miller presentó una Declaración Inicial de Titularidad Beneficiaria (Formulario 3) para MDU Resources Group, Inc. (MDU). El informe indica que la Sra. Miller, identificada como directora del emisor, posee beneficiariamente en propiedad directa 3.000 acciones ordinarias. El hecho que requiere la declaración está fechado el 12/08/2025 y la presentación fue firmada por apoderado el 14/08/2025. No se reportan valores derivados, enmiendas ni formularios de propiedad adicionales.

Tammy J. Millerê°€ MDU Resources Group, Inc.(MDU)ì—� 대í•� 최초 유ìµì†Œìœ  ì‹ ê³ ì„�(Form 3)ë¥� 제출했습니다. 제출서ì—ëŠ� Miller 씨가 발행회사ì� ì´ì‚¬ë¡� ì‹ë³„ë˜ë©°, ì§ì ‘ 소유 형태ë¡� 보통ì£� 3,000ì£�ë¥� 유ìµì†Œìœ í•˜ê³  있는 것으ë¡� 기재ë˜ì–´ 있습니다. ì‹ ê³  대ìƒ� ì‚¬ê±´ì€ 2025-08-12ìžì´ë©�, 서류ëŠ� 2025-08-14ì—� 대리ì¸ì� 서명했습니다. 파ìƒì¦ê¶Œ, 수정사항 ë˜ëŠ” 추가 소유 ê´€ë � 서류ëŠ� ë³´ê³ ë˜ì§€ 않았습니ë‹�.

Tammy J. Miller a déposé une Déclaration Initiale de Détention Avantageuse (Formulaire 3) pour MDU Resources Group, Inc. (MDU). Le dossier indique que Mme Miller, identifiée comme directrice de l'émetteur, détient à titre direct 3 000 actions ordinaires. L'événement donnant lieu à la déclaration est daté du 12/08/2025 et le dépôt a été signé par un mandataire le 14/08/2025. Aucun titre dérivé, amendement ou formulaire de détention supplémentaire n'est signalé dans le document.

Tammy J. Miller reichte eine Erstmitteilung über wirtschaftliches Eigentum (Formular 3) für MDU Resources Group, Inc. (MDU) ein. Die Einreichung weist aus, dass Frau Miller als Direktorin des Emittenten identifiziert ist und im direkten Eigentum 3.000 Stammaktien wirtschaftlich besitzt. Das meldepflichtige Ereignis ist auf den 12.08.2025 datiert, und die Einreichung wurde am 14.08.2025 von einem Bevollmächtigten unterzeichnet. In dem Dokument sind keine derivativen Wertpapiere, Änderungen oder weiteren Eigentumsformulare aufgeführt.

Positive
  • Initial disclosure completed: The Form 3 registers the director's beneficial ownership as required under Section 16(a).
  • Clear reporting: Document provides name, address, relationship (Director), event date (08/12/2025), and exact share count (3,000), supporting regulatory transparency.
Negative
  • None.

Insights

TL;DR: Routine Form 3 disclosing director's initial direct ownership of 3,000 common shares; procedural disclosure, not a material transaction.

This Form 3 registers Ms. Tammy J. Miller as a reporting person because she is a director of MDU Resources Group, Inc., and discloses direct beneficial ownership of 3,000 common shares. The filing meets Section 16(a) initial-reporting requirements and contains no derivative positions or amendments. From a governance perspective, the document provides standard transparency about insider holdings; it does not indicate purchases, sales, option grants, or changes that would require Section 16 reporting beyond this initial statement.

TL;DR: Compliance filing appears complete for an initial statement: identifies reporting person, relationship, and exact share amount.

The Form 3 includes the reporting person's name and address, the issuer and ticker (MDU), the relationship checkbox marking Director, the event date (08/12/2025), and the reported direct ownership of 3,000 shares of common stock. The signature block shows an attorney-in-fact executed the form on 08/14/2025. There are no derivative securities reported and no indication of amendments, which suggests this is a straightforward initial disclosure under Section 16(a).

Tammy J. Miller ha presentato una Dichiarazione Iniziale di Possesso Beneficiale (Mod. 3) relativa a MDU Resources Group, Inc. (MDU). La comunicazione indica che la sig.ra Miller, identificata come direttore dell'emittente, detiene in proprietà diretta 3.000 azioni ordinarie. L'evento che ha reso necessaria la dichiarazione è datato 12/08/2025 e il documento è stato firmato per procura il 14/08/2025. Non sono segnalati titoli derivati, emendamenti o ulteriori moduli di proprietà.

Tammy J. Miller presentó una Declaración Inicial de Titularidad Beneficiaria (Formulario 3) para MDU Resources Group, Inc. (MDU). El informe indica que la Sra. Miller, identificada como directora del emisor, posee beneficiariamente en propiedad directa 3.000 acciones ordinarias. El hecho que requiere la declaración está fechado el 12/08/2025 y la presentación fue firmada por apoderado el 14/08/2025. No se reportan valores derivados, enmiendas ni formularios de propiedad adicionales.

Tammy J. Millerê°€ MDU Resources Group, Inc.(MDU)ì—� 대í•� 최초 유ìµì†Œìœ  ì‹ ê³ ì„�(Form 3)ë¥� 제출했습니다. 제출서ì—ëŠ� Miller 씨가 발행회사ì� ì´ì‚¬ë¡� ì‹ë³„ë˜ë©°, ì§ì ‘ 소유 형태ë¡� 보통ì£� 3,000ì£�ë¥� 유ìµì†Œìœ í•˜ê³  있는 것으ë¡� 기재ë˜ì–´ 있습니다. ì‹ ê³  대ìƒ� ì‚¬ê±´ì€ 2025-08-12ìžì´ë©�, 서류ëŠ� 2025-08-14ì—� 대리ì¸ì� 서명했습니다. 파ìƒì¦ê¶Œ, 수정사항 ë˜ëŠ” 추가 소유 ê´€ë � 서류ëŠ� ë³´ê³ ë˜ì§€ 않았습니ë‹�.

Tammy J. Miller a déposé une Déclaration Initiale de Détention Avantageuse (Formulaire 3) pour MDU Resources Group, Inc. (MDU). Le dossier indique que Mme Miller, identifiée comme directrice de l'émetteur, détient à titre direct 3 000 actions ordinaires. L'événement donnant lieu à la déclaration est daté du 12/08/2025 et le dépôt a été signé par un mandataire le 14/08/2025. Aucun titre dérivé, amendement ou formulaire de détention supplémentaire n'est signalé dans le document.

Tammy J. Miller reichte eine Erstmitteilung über wirtschaftliches Eigentum (Formular 3) für MDU Resources Group, Inc. (MDU) ein. Die Einreichung weist aus, dass Frau Miller als Direktorin des Emittenten identifiziert ist und im direkten Eigentum 3.000 Stammaktien wirtschaftlich besitzt. Das meldepflichtige Ereignis ist auf den 12.08.2025 datiert, und die Einreichung wurde am 14.08.2025 von einem Bevollmächtigten unterzeichnet. In dem Dokument sind keine derivativen Wertpapiere, Änderungen oder weiteren Eigentumsformulare aufgeführt.

SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number: 3235-0104
Estimated average burden
hours per response: 0.5
1. Name and Address of Reporting Person*
Miller Tammy J

(Last) (First) (Middle)
1200 WEST CENTURY AVENUE

(Street)
BISMARCK ND 58503

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
08/12/2025
3. Issuer Name and Ticker or Trading Symbol
MDU RESOURCES GROUP INC [ MDU ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock 3,000 D
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
Remarks:
poamiller.txt
Anthony D. Foti, Attorney-in-Fact for Tammy J. Miller 08/14/2025
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What does the Form 3 filed for MDU by Tammy J. Miller report?

The Form 3 reports that Tammy J. Miller, identified as a director, directly beneficially owns 3,000 shares of MDU common stock; the event date is 08/12/2025.

Does the filing show any derivative securities or options for Tammy J. Miller (MDU)?

No. Table II for derivative securities is empty; the filing reports only 3,000 shares of common stock as direct ownership.

Who signed the Form 3 and when was it signed?

The Form 3 was signed by Anthony D. Foti, Attorney-in-Fact for Tammy J. Miller on 08/14/2025.

Is this filing an amendment to a prior report?

No. The form does not indicate an amendment date and is presented as an initial statement (Form 3).

What relationship to the issuer is stated on the Form 3?

The reporting person is marked as a Director of MDU Resources Group, Inc.
Mdu Resources

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3.39B
202.30M
0.94%
83.77%
3.09%
Conglomerates
Mining & Quarrying of Nonmetallic Minerals (no Fuels)
United States
BISMARCK