SEC Filings

SEC Filings

Other Filings
Filing Description Filing Type Filing Date Event Date  
11-K 11-K 6/14/2019 12/31/2018
Abstract: Registrant filed the annual report for its 401(k) retirement plan.
13-D SC 13G/A 6/7/2019
Misc SD 5/30/2019
8-K 8-K 5/8/2019 5/7/2019
Abstract: 8-K filed by MDU Resources Group Inc. (MDU) covering Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year; Submission of Matters to a Vote of Security Holder; and Financial Statements and Exhibits.
10-Q 10-Q 5/3/2019 3/31/2019
8-K 8-K 4/30/2019 4/30/2019
Abstract: 8-K filed by MDU Resources Group Inc. (MDU) covering Results of Operations and Financial Condition; Regulation FD Disclosure; and Financial Statements and Exhibits.
Proxy DEF 14A 3/22/2019 5/7/2019
Proxy DEFA14A 3/22/2019
Proxy PRE 14A 3/8/2019 5/7/2019
8-K 8-K 2/22/2019 2/22/2019
Abstract: 8-K filed by MDU Resources Group Inc. (MDU) covering Entry into a Material Definitive Agreement and Financial Statements and Exhibits.
10-K 10-K 2/22/2019 12/31/2018
Prospectus 424B5 2/22/2019
8-K 8-K 2/19/2019 2/19/2019
Abstract: 8-K filed by MDU Resources Group Inc. (MDU) covering Regulation FD Disclosure and Financial Statements and Exhibits.
8-K 8-K 2/15/2019 2/14/2019
Abstract: 8-K filed by MDU Resources Group Inc. (MDU) covering Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year and Financial Statements and Exhibits.
13-D SC 13G 2/14/2019
13-D SC 13G/A 2/13/2019
13-D SC 13G/A 2/11/2019
8-K 8-K 2/6/2019 2/5/2019
Abstract: 8-K filed by MDU Resources Group Inc. (MDU) covering Results of Operations and Financial Condition; Regulation FD Disclosure; and Financial Statements and Exhibits.
13-D SC 13G/A 2/6/2019
8-K 8-K12B 1/2/2019 12/31/2018
Abstract: 8-K filed by MDU Resources Group Inc. (MDU) covering Entry into a Material Definitive Agreement; Material Modification to Rights of Security Holders; Departure of Directors or Principal Officers; Election of Directors; Appointment of Principal Officers; Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year; Other Events; and Financial Statements and Exhibits.

Displaying 1 to 20 (of 279 filings)