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 51-70 of 70 matching filings.

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SC 13G File 005-36015

MUNDER 13G FILING FOR NORTHWESTERN CORPORATION

Filing date: 13 Feb 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

NWE AS OF 12/31/12

Filing date: 11 Feb 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

SC 13G/A filing

Filing date: 11 Feb 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-36015

NORTHWESTERN CORPORATION SC 13G

Filing date: 29 Jan 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

SC 13G/A filing

Filing date: 11 Jan 2013
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

SC 13G/A filing

Filing date: 09 Nov 2012
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

MUNDER LIVE FILING FOR NORTHWESTERN CORPORATION

Filing date: 13 Feb 2012
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

MUNDER FILING FOR NOTHWESTERN CORPORATION

Filing date: 13 Feb 2012
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

SC 13G/A filing

Filing date: 09 Feb 2012
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

12/31/2011

Filing date: 08 Feb 2012
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

SC 13G/A filing

Filing date: 08 Feb 2012
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

NORTHWESTERN CORPORATION

Filing date: 08 Feb 2012
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

LIVE MUNDER FILING FOR NORTHWESTERN CORP 13-GA

Filing date: 14 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-36015

SC 13G filing

Filing date: 10 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-36015

NORTHWESTERN CORP

Filing date: 10 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-36015

NWE AS OF 12/31/10

Filing date: 09 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

SC 13G/A filing

Filing date: 02 Feb 2011
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

SC 13G/A filing

Filing date: 16 Feb 2010
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

NORTHWESTERN CORPORATION 13GA MUNDER FILING

Filing date: 11 Feb 2010
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-36015

SC 13G filing

Filing date: 29 Jan 2010
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing