SEC Seal
SEC Banner
Search the Next-Generation EDGAR System
Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001127602-18-013095
Filing Date
2018-03-30
Accepted
2018-03-30 12:28:27
Documents
1
Period of Report
2018-03-30

Document Format Files

Seq Description Document Type Size
1 PRIMARY DOCUMENT form4.html 4  
1 PRIMARY DOCUMENT form4.xml 4 4208
  Complete submission text file 0001127602-18-013095.txt   5665
Mailing Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503
Business Address 1200 WEST CENTURY AVENUE BISMARCK ND 58503 701-530-1059
MDU RESOURCES GROUP INC (Issuer) CIK: 0000067716 (see all company filings)

IRS No.: 410423660 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 1400 Mining & Quarrying of Nonmetallic Minerals (No Fuels)

Mailing Address 1776 LINCOLN ST STE 700 DENVER CO 80203
Business Address
HELLERSTEIN MARK A (Reporting) CIK: 0001198283 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-03480 | Film No.: 18725450