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

Filter by type:
10-K
10-Q
8-K
SC13D
SC13G

SEC filing history

Showing 701-725 of 1,000 matching filings.

Per page

Current page

FORM 4

Filing date: 05 Jan 2015
Reporting date: 02 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 05 Jan 2015
Reporting date: 02 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 05 Jan 2015
Reporting date: 02 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 05 Jan 2015
Reporting date: 02 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 05 Jan 2015
Reporting date: 02 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 05 Jan 2015
Reporting date: 05 Jan 2015
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 24 Dec 2014
Reporting date: 19 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 22 Dec 2014
Reporting date: 16 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 11 Dec 2014
Reporting date: 10 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

SC 13G/A filing

Filing date: 10 Dec 2014
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G File 005-36015

NORTHWESTERN INITIAL

Filing date: 09 Dec 2014
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 09 Dec 2014
Reporting date: 09 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 02 Dec 2014
Reporting date: 01 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 02 Dec 2014
Reporting date: 01 Dec 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 24 Nov 2014
Reporting date: 18 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 14 Nov 2014
Reporting date: 14 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

424B2 File 333-179568

424B2

Filing date: 13 Nov 2014
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 12 Nov 2014
Reporting date: 05 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 10 Nov 2014
Reporting date: 10 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

FORM 8-K

Filing date: 10 Nov 2014
Reporting date: 04 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

424B2 File 333-179568

424B2

Filing date: 06 Nov 2014
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

424B2 File 333-179568

424B2

Filing date: 05 Nov 2014
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

FWP File 333-179568

FWP

Filing date: 05 Nov 2014
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

424B5 File 333-179568

424B5

Filing date: 05 Nov 2014
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Nov 2014
Reporting date: 03 Nov 2014
SEC evidence: Open document Open filing
Next action: Verify source filing