ALLETE INC reports

Company location: Duluth, MN
Fiscal year end: 31 December

ALLETE INC has filed 1,600 SEC EDGAR filings since 08 Feb 1994

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SEC filing history

Showing 26-50 of 898 matching filings.

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25

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2

8-K File 001-03548

8-K

Filing date: 15 Dec 2025
Reporting date: 15 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

25-NSE File 001-03548

25-NSE filing

Filing date: 15 Dec 2025
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03548

8-K

Filing date: 11 Dec 2025
Reporting date: 10 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-03548

10-Q

Filing date: 31 Oct 2025
Reporting date: 30 Sep 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03548

8-K

Filing date: 06 Oct 2025
Reporting date: 05 Oct 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03548

8-K

Filing date: 03 Oct 2025
Reporting date: 03 Oct 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

SD File 001-03548

SD

Filing date: 24 Sep 2025
Reporting date: Not listed
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-03548

10-Q

Filing date: 07 Aug 2025
Reporting date: 30 Jun 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03548

8-K

Filing date: 14 Jul 2025
Reporting date: 09 Jul 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

11-K File 001-03548

11-K

Filing date: 27 Jun 2025
Reporting date: 26 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 02 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 02 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 02 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 02 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 02 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 02 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 02 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 02 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

4

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 02 Jun 2025
Reporting date: 02 Jun 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03548

8-K

Filing date: 15 May 2025
Reporting date: 13 May 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

10-Q File 001-03548

10-Q

Filing date: 08 May 2025
Reporting date: 31 Mar 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

S-3ASR File 333-287004

S-3ASR

Filing date: 06 May 2025
Reporting date: Not listed
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

3

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filing date: 28 Apr 2025
Reporting date: 16 Apr 2025
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03548

8-K

Filing date: 16 Apr 2025
Reporting date: 16 Apr 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

ARS File 001-03548

ARS

Filing date: 31 Mar 2025
Reporting date: 31 Dec 2024
SEC evidence: Open document Open filing
Next action: Verify source filing

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