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 826–850 of 1,000 matching filings.

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8-K File 001-10499

8-K

Filing date: 23 Dec 2013
Reporting date: 19 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 16 Dec 2013
Reporting date: 10 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 09 Dec 2013
Reporting date: 09 Dec 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

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

8-K File 001-10499

8-K

Filing date: 18 Nov 2013
Reporting date: 12 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 12 Nov 2013
Reporting date: 11 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 08 Nov 2013
Reporting date: 05 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 07 Nov 2013
Reporting date: 06 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Nov 2013
Reporting date: 01 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Nov 2013
Reporting date: 01 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Nov 2013
Reporting date: 01 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Nov 2013
Reporting date: 01 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Nov 2013
Reporting date: 01 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Nov 2013
Reporting date: 01 Nov 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 24 Oct 2013
Reporting date: 24 Oct 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

10-Q File 001-10499

10-Q

Filing date: 24 Oct 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

FORM 4

Filing date: 02 Oct 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 02 Oct 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 02 Oct 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 02 Oct 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 02 Oct 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 02 Oct 2013
Reporting date: 30 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

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

8-K File 001-10499

8-K

Filing date: 27 Sep 2013
Reporting date: 26 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing

FORM 4

Filing date: 04 Sep 2013
Reporting date: 03 Sep 2013
SEC evidence: Open document Open filing
Next action: Verify source filing