Financial reports
ARS
2023 FY
Annual report to shareholders
29 Mar 24
10-K
2023 FY
Annual report
22 Feb 24
10-Q
2023 Q3
Quarterly report
2 Nov 23
10-Q
2023 Q2
Quarterly report
3 Aug 23
10-Q
2023 Q1
Quarterly report
4 May 23
ARS
2022 FY
Annual report to shareholders
24 Mar 23
10-K
2022 FY
Annual report
24 Feb 23
10-Q
2022 Q3
Quarterly report
3 Nov 22
10-Q
2022 Q2
Quarterly report
5 Aug 22
10-Q
2022 Q1
Quarterly report
5 May 22
Current reports
8-K
Entry into a Material Definitive Agreement
18 Mar 24
8-K
MDU Resources Affirms 2024 Guidance, Updates Long-Term Earnings Per Share Guidance
13 Mar 24
8-K
Departure of Directors or Certain Officers
21 Feb 24
8-K
MDU Resources Reports Robust Growth in 2023; Initiates Guidance for 2024
8 Feb 24
8-K
MDU Resources Announces Five-Year Capital Investment Plan
21 Nov 23
8-K
MDU Resources Appoints Darrel T. Anderson to Board of Directors
17 Nov 23
8-K
Regulation FD Disclosure
2 Nov 23
8-K
MDU Resources Reports Third Quarter Earnings, Increases Guidance
2 Nov 23
8-K
Departure of Directors or Certain Officers
17 Aug 23
8-K
Termination of a Material Definitive Agreement
10 Aug 23
Registration and prospectus
S-8
Registration of securities for employees
23 Feb 24
S-3ASR
Automatic shelf registration
14 Aug 20
S-8
Registration of securities for employees
18 Nov 19
424B5
Prospectus supplement for primary offering
22 Feb 19
15-12B
Securities registration termination
14 Jan 19
25-NSE
Exchange delisting
2 Jan 19
S-8 POS
Registration of securities for employees (post-effective amendment)
2 Jan 19
S-8 POS
Registration of securities for employees (post-effective amendment)
2 Jan 19
S-8 POS
Registration of securities for employees (post-effective amendment)
2 Jan 19
POSASR
Automatic shelf registration (post-effective amendment)
2 Jan 19
Proxies
DEFA14A
Additional proxy soliciting materials
29 Mar 24
DEF 14A
Definitive proxy
29 Mar 24
DEFA14A
Additional proxy soliciting materials
24 Mar 23
DEF 14A
Definitive proxy
24 Mar 23
DEFA14A
Additional proxy soliciting materials
25 Mar 22
DEF 14A
Definitive proxy
25 Mar 22
DEFA14A
Additional proxy soliciting materials
26 Mar 21
DEF 14A
Definitive proxy
26 Mar 21
DEFA14A
Additional proxy soliciting materials
27 Mar 20
DEF 14A
Definitive proxy
27 Mar 20
Other
SD
Conflict minerals disclosure
24 May 23
UPLOAD
Letter from SEC
23 Jun 22
SD
Conflict minerals disclosure
25 May 22
CORRESP
Correspondence with SEC
16 May 22
CORRESP
Correspondence with SEC
26 Apr 22
UPLOAD
Letter from SEC
14 Apr 22
SD
Conflict minerals disclosure
27 May 21
SD
Conflict minerals disclosure
26 May 20
SD
Conflict minerals disclosure
30 May 19
SD
Conflict minerals disclosure
31 May 18