NORTHWESTERN CORP reports

Company location: Sioux Falls, SD
Fiscal year end: 31 December

NORTHWESTERN CORP has filed 3,022 SEC EDGAR filings since 14 Feb 1994

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SEC filing history

Showing 876-900 of 1,000 matching filings.

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25

Current page

36

4

FORM 4

Filing date: 02 May 2013
Reporting date: 01 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 May 2013
Reporting date: 01 May 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 30 Apr 2013
Reporting date: 25 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

Q1 2013 FORM 8-K

Filing date: 25 Apr 2013
Reporting date: 25 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-10499

FORM 10Q MARCH 31, 2013

Filing date: 25 Apr 2013
Reporting date: 31 Mar 2013
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2013
Reporting date: 01 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2013
Reporting date: 01 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2013
Reporting date: 01 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2013
Reporting date: 01 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2013
Reporting date: 01 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2013
Reporting date: 01 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2013
Reporting date: 01 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 02 Apr 2013
Reporting date: 01 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 21 Mar 2013
Reporting date: 21 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

ARS File 001-10499

AUTO-GENERATED PAPER DOCUMENT

Filing date: 12 Mar 2013
Reporting date: 31 Dec 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

DEFA14A File 001-10499

DEFA14A

Filing date: 08 Mar 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

DEF 14A File 001-10499

DEF 14A

Filing date: 08 Mar 2013
Reporting date: 25 Apr 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 04 Mar 2013
Reporting date: 04 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Mar 2013
Reporting date: 28 Feb 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Mar 2013
Reporting date: 01 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Mar 2013
Reporting date: 01 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Mar 2013
Reporting date: 01 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Mar 2013
Reporting date: 01 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Mar 2013
Reporting date: 01 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Mar 2013
Reporting date: 01 Mar 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

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