Mailing Address 1411 EAST MISSION SPOKANE WA 99202
Business Address 1411 E MISSION AVE SPOKANE WA 99202 5094890500
AVISTA CORP CIK#: 0000104918 (see all company filings)

SIC: 4931 - ELECTRIC & OTHER SERVICES COMBINED
State location: WA | State of Inc.: WA | Fiscal Year End: 1231
formerly: WASHINGTON WATER POWER CO (filings through 1998-12-10)
(CF Office: 01 Energy & Transportation)
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Items 1 - 40  0000104918 Filings RSS Feed
Filings Format Description Filing Date File/Film Number
424B5  Documents   Interactive Data Prospectus [Rule 424(b)(5)]
Acc-no: 0001193125-25-114848 (33 Act)  Size: 503 KB
2025-05-07 333-287023
25921011
S-3ASR  Documents   Interactive Data Automatic shelf registration statement of securities of well-known seasoned issuers
Acc-no: 0001193125-25-114714 (33 Act)  Size: 637 KB
2025-05-07 333-287023
25920508
8-K  Documents   Interactive Data Current report, items 2.02 and 9.01
Acc-no: 0000950170-25-064740 (34 Act)  Size: 427 KB
2025-05-07 001-03701
25918762
10-Q  Documents   Interactive Data Quarterly report [Sections 13 or 15(d)]
Acc-no: 0000950170-25-064737 (34 Act)  Size: 19 MB
2025-05-07 001-03701
25918761
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000071 Size: 4 KB
2025-05-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000070 Size: 5 KB
2025-05-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000069 Size: 4 KB
2025-05-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000068 Size: 4 KB
2025-05-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000067 Size: 4 KB
2025-05-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000066 Size: 4 KB
2025-05-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000065 Size: 4 KB
2025-05-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000064 Size: 4 KB
2025-05-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000063 Size: 4 KB
2025-05-06
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000062 Size: 4 KB
2025-05-06
SCHEDULE 13G/A  Documents [Amend] Statement of Beneficial Ownership by Certain Investors
Acc-no: 0002052113-25-001474 (34 Act)  Size: 10 KB
2025-04-23 005-35285
25863198
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000061 Size: 4 KB
2025-04-02
ARS  Documents Annual Report to Security Holders
Acc-no: 0000950170-25-045360 (34 Act)  Size: 10 MB
2025-03-26 001-03701
25773930
DEFA14A  Documents Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Acc-no: 0001193125-25-064050 (34 Act)  Size: 315 KB
2025-03-26 001-03701
25773111
DEF 14A  Documents   Interactive Data Other definitive proxy statements
Acc-no: 0001193125-25-064042 (34 Act)  Size: 10 MB
2025-03-26 001-03701
25773046
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000060 Size: 5 KB
2025-03-13
144  Documents Report of proposed sale of securities
Acc-no: 0000104918-25-000059 (33 Act)  Size: 4 KB
2025-03-13 001-03701
25734450
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000058 Size: 5 KB
2025-03-10
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000057 Size: 5 KB
2025-03-10
144  Documents Report of proposed sale of securities
Acc-no: 0000104918-25-000056 (33 Act)  Size: 4 KB
2025-03-10 001-03701
25722992
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000055 Size: 6 KB
2025-03-06
144  Documents Report of proposed sale of securities
Acc-no: 0001973379-25-000095 (33 Act)  Size: 4 KB
2025-03-06 001-03701
25714525
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000054 Size: 9 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000053 Size: 8 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000052 Size: 9 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000051 Size: 9 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000050 Size: 5 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000049 Size: 9 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000048 Size: 9 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000047 Size: 9 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000046 Size: 8 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000045 Size: 8 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000044 Size: 9 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000043 Size: 9 KB
2025-03-04
4  Documents Statement of changes in beneficial ownership of securities
Acc-no: 0000104918-25-000042 Size: 4 KB
2025-03-04
144  Documents Report of proposed sale of securities
Acc-no: 0001973379-25-000071 (33 Act)  Size: 4 KB
2025-03-04 001-03701
25703322