# EDGAR Filing Document

**Accession Number:** 0000862831
**File Stem:** 9999999995-26-000610
**Filing Date:** 2026-2
**Character Count:** 1259
**Document Hash:** 05010681cad10977d70937a6ab7482ea
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**9999999995-26-000610.hdr.sgml**: 20260218

**ACCESSION NUMBER**: 9999999995-26-000610

**CONFORMED SUBMISSION TYPE**: EFFECT

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20260217

**DATE AS OF CHANGE**: 20260218

**EFFECTIVENESS DATE**: 20260217

**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:** EFFECT
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-293081
- **FILM NUMBER:** 26645195

**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

### UNITED STATES
### SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## Notice of Effectiveness

**Date:** February 17, 2026

**Time:** 16:00:00

**Form Type:** S-4

---

**CIK:** 0000862831

**Company Name:** FINANCIAL INSTITUTIONS INC

**File Number:** 333-293081