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 976-1,000 of 1,000 matching filings.

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25

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40

4

FORM 4

Filing date: 03 Jul 2012
Reporting date: 02 Jul 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Jul 2012
Reporting date: 02 Jul 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Jul 2012
Reporting date: 02 Jul 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Jul 2012
Reporting date: 02 Jul 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Jul 2012
Reporting date: 02 Jul 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K filing

Filing date: 12 Jun 2012
Reporting date: 12 Jun 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 01 Jun 2012
Reporting date: 01 Jun 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 31 May 2012
Reporting date: 30 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 01 May 2012
Reporting date: 01 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 01 May 2012
Reporting date: 01 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 01 May 2012
Reporting date: 01 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 01 May 2012
Reporting date: 01 May 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K_04/27/2012_VOTING RESULTS

Filing date: 27 Apr 2012
Reporting date: 27 Apr 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

424B5 File 333-179568

FORM 424(B)(5)_PROSPECTUS SUPPLEMENT

Filing date: 25 Apr 2012
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K _ 04/25/2012

Filing date: 25 Apr 2012
Reporting date: 25 Apr 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K_04/25/2012_EARNINGS RELEASE

Filing date: 25 Apr 2012
Reporting date: 25 Apr 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-10499

FORM 10-Q MARCH 31, 2012

Filing date: 25 Apr 2012
Reporting date: 31 Mar 2012
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 03 Apr 2012
Reporting date: 30 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 03 Apr 2012
Reporting date: 30 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 03 Apr 2012
Reporting date: 30 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 03 Apr 2012
Reporting date: 30 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 03 Apr 2012
Reporting date: 30 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 03 Apr 2012
Reporting date: 30 Mar 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 03 Apr 2012
Reporting date: 02 Apr 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4 - GENERATED BY WEBFILINGS

Filing date: 03 Apr 2012
Reporting date: 02 Apr 2012
SEC evidence: Open document Open filing
Next action: Verify source filing

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