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Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000073088-18-000004
Filing Date
2018-01-04
Accepted
2018-01-04 14:20:47
Documents
1
Period of Report
2018-01-03

Document Format Files

Seq Description Document Type Size
1 FORM 4 wf-form4_151509363438923.html 4  
1 FORM 4 wf-form4_151509363438923.xml 4 3226
  Complete submission text file 0000073088-18-000004.txt   4551
Mailing Address 3010 W 69TH STREET SIOUX FALLS SD 57108
Business Address 3010 W 69TH STREET SIOUX FALLS SD 57108 6059782908
NORTHWESTERN CORP (Issuer) CIK: 0000073088 (see all company filings)

IRS No.: 460172280 | State of Incorp.: DE | Fiscal Year End: 1231
SIC: 4931 Electric & Other Services Combined

Mailing Address
Business Address
HORSFALL JAN ROBERT (Reporting) CIK: 0001244563 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-10499 | Film No.: 18509596