# EDGAR Filing Document

**Accession Number:** 0000104918
**File Stem:** 0001193125-26-138159
**Filing Date:** 2026-4
**Character Count:** 1244
**Document Hash:** b55d041d314fd9ee9b25623d266d4203
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-138159.hdr.sgml**: 20260401

**ACCESSION NUMBER**: 0001193125-26-138159

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260401

**DATE AS OF CHANGE**: 20260401

**EFFECTIVENESS DATE**: 20260401

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** AVISTA CORP
- **CENTRAL INDEX KEY:** 0000104918
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC & OTHER SERVICES COMBINED [4931]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 910462470
- **STATE OF INCORPORATION:** WA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-03701
- **FILM NUMBER:** 26829233

**BUSINESS ADDRESS:**
- **STREET 1:** 1411 E MISSION AVE
- **CITY:** SPOKANE
- **STATE:** WA
- **ZIP:** 99202
- **BUSINESS PHONE:** 5094890500

**MAIL ADDRESS:**
- **STREET 1:** 1411 EAST MISSION
- **CITY:** SPOKANE
- **STATE:** WA
- **ZIP:** 99202

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WASHINGTON WATER POWER CO
- **DATE OF NAME CHANGE:** 19920703

### Attached PDF Documents

**Attachment 1:** `2025_avista_annual_repor.pdf`

_No text found in this document._