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Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001225208-21-006185
Filing Date
2021-04-01
Accepted
2021-04-01 11:53:57
Documents
1
Period of Report
2021-03-31

Document Format Files

Seq Description Document Type Size
1 doc4.html 4  
1 doc4.xml 4 4165
  Complete submission text file 0001225208-21-006185.txt   5681
Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503 701-530-1000
MDU RESOURCES GROUP INC (Issuer) CIK: 0000067716 (see all company filings)

IRS No.: 301133956 | Fiscal Year End: 1231
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)

Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503
Business Address 800 NICOLLET MALL MINNEAPOLIS MN 55402 701-530-1013
SPARBY DAVID M (Reporting) CIK: 0001159192 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-03480 | Film No.: 21796878