# EDGAR Filing Document

**Accession Number:** 0000862831
**File Stem:** 0001193125-26-143720
**Filing Date:** 2026-4
**Character Count:** 1110
**Document Hash:** 734a4f7ffa7e25407c4bfa0208126d23
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001193125-26-143720.hdr.sgml**: 20260406

**ACCESSION NUMBER**: 0001193125-26-143720

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260406

**DATE AS OF CHANGE**: 20260406

**EFFECTIVENESS DATE**: 20260406

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** FINANCIAL INSTITUTIONS INC
- **CENTRAL INDEX KEY:** 0000862831
- **STANDARD INDUSTRIAL CLASSIFICATION:** NATIONAL COMMERCIAL BANKS [6021]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 160816610
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 000-26481
- **FILM NUMBER:** 26841151

**BUSINESS ADDRESS:**
- **STREET 1:** 220 LIBERTY STREET
- **CITY:** WARSAW
- **STATE:** NY
- **ZIP:** 14569
- **BUSINESS PHONE:** 5857861100

**MAIL ADDRESS:**
- **STREET 1:** 220 LIBERTY STREET
- **CITY:** WARSAW
- **STATE:** NY
- **ZIP:** 14569

### Attached PDF Documents

**Attachment 1:** `2026_fisi_ars.pdf`

_No text found in this document._