<SEC-DOCUMENT>0001193125-18-307841-index.html : 20181025
<SEC-HEADER>0001193125-18-307841.hdr.sgml : 20181025
<ACCEPTANCE-DATETIME>20181025171113
ACCESSION NUMBER:		0001193125-18-307841
CONFORMED SUBMISSION TYPE:	S-8 POS
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20181025
DATE AS OF CHANGE:		20181025
EFFECTIVENESS DATE:		20181025

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FINANCIAL INSTITUTIONS INC
		CENTRAL INDEX KEY:			0000862831
		STANDARD INDUSTRIAL CLASSIFICATION:	NATIONAL COMMERCIAL BANKS [6021]
		IRS NUMBER:				160816610
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-8 POS
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-40544
		FILM NUMBER:		181139608

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-8 POS
<SEQUENCE>1
<FILENAME>d634839ds8pos.htm
<DESCRIPTION>S-8 POS
<TEXT>
Document 1 - file: d634839ds8pos.htm

</DOCUMENT>
</SEC-DOCUMENT>