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Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0000073088-21-000063
Filing Date
2021-03-02
Accepted
2021-03-02 17:23:52
Documents
1
Period of Report
2021-03-01

Document Format Files

Seq Description Document Type Size
1 FORM 4 wf-form4_161472380392381.html 4  
1 FORM 4 wf-form4_161472380392381.xml 4 3742
  Complete submission text file 0000073088-21-000063.txt   5320
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 209 N. MONTANA AVENUE, SUITE 205 HELENA MT 59601
Business Address 209 N. MONTANA AVENUE, SUITE 205 HELENA MT 59601 406-443-8963
Heather H. Grahame (Reporting) CIK: 0001497903 (see all company filings)

Type: 4 | Act: 34 | File No.: 001-10499 | Film No.: 21705280