Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Sioux Falls, SD
SEC filing record 1 source field available
Fiscal year end
31 December
NORTHWESTERN CORP has filed 3,022 SEC EDGAR filings since 14 Feb 1994

SEC filing history

Showing 1-25 of 43 matching filings.

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25
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10-Q File 001-10499

FORM 10-Q SEPTEMBER 30, 2018

Filing date
24 Oct 2018
Reporting date
30 Sep 2018
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10-Q File 001-10499

FORM 10-Q 6.30.18

Filing date
20 Jul 2018
Reporting date
30 Jun 2018
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10-Q File 001-10499

FORM 10-Q 3.31.18

Filing date
25 Apr 2018
Reporting date
31 Mar 2018
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10-Q File 001-10499

FORM 10-Q SEPTEMBER 30, 2017

Filing date
02 Nov 2017
Reporting date
30 Sep 2017
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10-Q File 001-10499

FORM 10-Q JUNE 30, 2017

Filing date
26 Jul 2017
Reporting date
30 Jun 2017
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10-Q File 001-10499

FORM 10-Q MARCH 31, 2017

Filing date
27 Apr 2017
Reporting date
31 Mar 2017
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10-Q File 001-10499

FORM 10-Q SEPTEMBER 30, 2016

Filing date
20 Oct 2016
Reporting date
30 Sep 2016
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10-Q File 001-10499

FORM 10-Q JUNE 30, 2016

Filing date
22 Jul 2016
Reporting date
30 Jun 2016
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10-Q File 001-10499

FORM 10-Q 3.31.16

Filing date
20 Apr 2016
Reporting date
31 Mar 2016
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10-Q File 001-10499

FORM 10-Q SEPTEMBER 30, 2015

Filing date
22 Oct 2015
Reporting date
30 Sep 2015
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