AVISTA CORP reports

Company location: Spokane, WA
Fiscal year end: 31 December

AVISTA CORP has filed 2,729 SEC EDGAR filings since 20 Jan 1994

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SEC filing history

Showing 51-75 of 1,000 matching filings.

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25

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3

144 File 001-03701

144 filing

Filing date: 26 Feb 2026
Reporting date: Not listed
SEC evidence: Open document Open filing
Next action: Verify source filing

10-K File 001-03701

10-K

Filing date: 25 Feb 2026
Reporting date: 31 Dec 2025
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

8-K File 001-03701

8-K

Filing date: 25 Feb 2026
Reporting date: 25 Feb 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 18 Feb 2026
Reporting date: 17 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

5

PRIMARY DOCUMENT

Filing date: 12 Feb 2026
Reporting date: 15 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 10 Feb 2026
Reporting date: 09 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 04 Feb 2026
Reporting date: 02 Feb 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

8-K File 001-03701

8-K

Filing date: 16 Jan 2026
Reporting date: 16 Jan 2026
SEC evidence: Open document Open filing Open XBRL
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jan 2026
Reporting date: 06 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jan 2026
Reporting date: 06 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jan 2026
Reporting date: 06 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jan 2026
Reporting date: 06 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jan 2026
Reporting date: 06 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jan 2026
Reporting date: 06 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

4

PRIMARY DOCUMENT

Filing date: 08 Jan 2026
Reporting date: 06 Jan 2026
SEC evidence: Open document Open filing
Next action: Verify source filing

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