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 326-350 of 1,000 matching filings.

Per page
25
Current page
14
4

FORM 4

Filing date
08 Aug 2019
Reporting date
06 Aug 2019
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144 File 001-10499

144 ROWE 2019 AUG 05

Filing date
05 Aug 2019
Reporting date
Not listed
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4

FORM 4

Filing date
01 Aug 2019
Reporting date
01 Aug 2019
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144 File 001-10499

144 SCHROEPPEL JULY 2019

Filing date
31 Jul 2019
Reporting date
Not listed
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4

FORM 4

Filing date
29 Jul 2019
Reporting date
26 Jul 2019
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144 File 001-10499

144 GRAHAME JULY 2019

Filing date
25 Jul 2019
Reporting date
Not listed
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8-K File 001-10499

8-K MT FIRST MORTGAGE BONDS 2019

Filing date
02 Jul 2019
Reporting date
26 Jun 2019
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4

FORM 4

Filing date
13 Jun 2019
Reporting date
13 Jun 2019
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144 File 001-10499

144 ROWE JUNE 2019

Filing date
13 Jun 2019
Reporting date
Not listed
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8-K File 001-10499

8-K 2019 AGA FINANCIAL FORUM

Filing date
21 May 2019
Reporting date
21 May 2019
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8-K File 001-10499

8-K 2019 ANNUAL MEETING VOTING RESULTS

Filing date
30 Apr 2019
Reporting date
24 Apr 2019
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8-K File 001-10499

8-K

Filing date
24 Apr 2019
Reporting date
23 Apr 2019
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DEFA14A File 001-10499

DEFA14A ADDITIONAL MATERIALS 2019

Filing date
05 Apr 2019
Reporting date
Not listed
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8-K File 001-10499

8-K WEST COAST UTILITIES 2019

Filing date
20 Mar 2019
Reporting date
20 Mar 2019
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DEFA14A File 001-10499

DEFA14A 2019 ANNUAL MEETING NOTICE

Filing date
07 Mar 2019
Reporting date
Not listed
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DEF 14A File 001-10499

DEF 14A 2019 PROXY STATEMENT

Filing date
07 Mar 2019
Reporting date
24 Apr 2019
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8-K File 001-10499

8-K NEW YORK BOSTON PRESENTATION

Filing date
05 Mar 2019
Reporting date
05 Mar 2019
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4

FORM 4

Filing date
28 Feb 2019
Reporting date
27 Feb 2019
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