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 76-100 of 1,000 matching filings.

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25

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4

4

FORM 4

Filing date: 03 Feb 2023
Reporting date: 02 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 03 Feb 2023
Reporting date: 02 Feb 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

SC 13G/A File 005-36015

SC 13G/A filing

Filing date: 23 Jan 2023
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 17 Jan 2023
Reporting date: 16 Jan 2023
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 06 Jan 2023
Reporting date: 06 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Jan 2023
Reporting date: 06 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Jan 2023
Reporting date: 06 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Jan 2023
Reporting date: 06 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Jan 2023
Reporting date: 06 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 06 Jan 2023
Reporting date: 06 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 05 Jan 2023
Reporting date: 21 Dec 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

3

FORM 3

Filing date: 03 Jan 2023
Reporting date: 03 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

3

FORM 3

Filing date: 03 Jan 2023
Reporting date: 03 Jan 2023
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 19 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

FORM 4

Filing date: 15 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 15 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 15 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 15 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 15 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 15 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 15 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 15 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

4

FORM 4

Filing date: 15 Dec 2022
Reporting date: 13 Dec 2022
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 07 Dec 2022
Reporting date: 07 Dec 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-10499

8-K

Filing date: 01 Dec 2022
Reporting date: 28 Nov 2022
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

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