NORTHWESTERN CORP SEC filing history

1,000 loaded recent SEC filings. No local filings are indexed for this CIK yet. This fallback shows up to 1,000 recent submissions, not the complete SEC archive.

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SEC filing history

Showing 726–750 of 1,000 matching filings.

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FORM 4

Filing date: 04 Nov 2014
Reporting date: 03 Nov 2014
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

FORM 4

Filing date: 04 Nov 2014
Reporting date: 03 Nov 2014
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

FORM 4

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

8-K File 001-10499

8-K

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

424B5 File 333-179568

424B5

Filing date: 03 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: 30 Oct 2014
Reporting date: 30 Oct 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 27 Oct 2014
Reporting date: 27 Oct 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 23 Oct 2014
Reporting date: 23 Oct 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-10499

10-Q

Filing date: 23 Oct 2014
Reporting date: 30 Sep 2014
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 06 Oct 2014
Reporting date: 01 Oct 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

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

FORM 4

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

8-K File 001-10499

8-K

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

FORM 4

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

FORM 4

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

FORM 4

Filing date: 04 Aug 2014
Reporting date: 01 Aug 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Aug 2014
Reporting date: 01 Aug 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Aug 2014
Reporting date: 01 Aug 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Aug 2014
Reporting date: 01 Aug 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Aug 2014
Reporting date: 01 Aug 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Aug 2014
Reporting date: 01 Aug 2014
SEC evidence: Open document Open filing
Next action: Verify source filing

S-8 File 333-197627

S-8

Filing date: 25 Jul 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: 24 Jul 2014
Reporting date: 24 Jul 2014
SEC evidence: Open document Open filing
Next action: Verify source filing