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AVISTA CORP — 424B5 Filings

22 424B5 filings on record

This page lists all 424B5 filings submitted to the SEC by AVISTA CORP (AVA), sorted by most recent first. Each row links to the full filing on EdgarLookup. AVISTA CORP has filed 22 424B5 documents with the SEC since 2017. To view all SEC filings by AVISTA CORP, see the full filings list.

Overview All Filings Financials Insiders
All 10-12B/A 10-K 10-K/A 10-K405 10-Q 11-K 11-K/A 144 25-NSE 3 3/A 4 4/A 424B1 424B2 424B3 424B5 425 5 8-A12B 8-A12B/A 8-K 8-K/A ARS CORRESP DEF 14A DEFA14A DEFM14A DFAN14A EFFECT FWP NO ACT POS AM PRE 14A PREM14A S-3 S-3/A S-3ASR S-3D S-4 S-4/A S-8 S-8 POS SC 13E4 SC 13E4/A SC 13G SC 13G/A SCHEDULE 13G/A SD UPLOAD
Form Description Accession Number Filed Period
424B5 424B5 0001193125-25-176500 Aug 8, 2025
424B5 424B5 0001193125-25-114848 May 7, 2025
424B5 424B5 0001193125-24-133197 May 7, 2024
424B5 424B5 0001193125-23-201495 Aug 2, 2023
424B5 424B5 0001193125-22-144899 May 9, 2022
424B5 424B5 0001193125-21-238845 Aug 6, 2021
424B5 424B5 0001193125-20-142952 May 15, 2020
424B5 424B5 0001193125-19-146737 May 15, 2019
424B5 424B5 0000104918-16-000200 Mar 2, 2016
424B5 424B5 0001193125-12-346278 Aug 9, 2012
424B5 424B5 0000950123-09-071258 Dec 16, 2009
424B5 PROSPECTUS SUPPLEMENT 0000950134-08-005472 Mar 27, 2008
424B5 PROSPECTUS SUPPLEMENT PURSUANT TO RULE 424(B)(5) 0000950124-06-007814 Dec 22, 2006
424B5 FORM 424(B)(5) 0000891020-06-000390 Dec 12, 2006
424B5 FILED PURSUANT TO RULE 424(B)(5) 0000891020-06-000387 Dec 11, 2006
424B5 FORM 424B5 0001193125-05-234278 Nov 30, 2005
424B5 FORM 424(B)5 0001193125-05-224926 Nov 14, 2005
424B5 0000930413-04-005292 Nov 19, 2004
424B5 PROSPECTUS SUPPLEMENT 0001193125-03-045460 Sep 4, 2003
424B5 424B5 FOR AVISTA CORPORATION 0000950120-00-000208 Aug 16, 2000
424B5 PROSPECTUS SUPPLEMENT 0000950120-99-000310 Aug 19, 1999
424B5 PROSPECTUS SUPPLEMENT OF WASHINGTON WATER POWER CO 0000950120-94-000014 Jan 20, 1994