<SEC-DOCUMENT>0001193125-17-157483-index.html : 20170504
<SEC-HEADER>0001193125-17-157483.hdr.sgml : 20170504
<ACCEPTANCE-DATETIME>20170504090856
ACCESSION NUMBER:		0001193125-17-157483
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		7
CONFORMED PERIOD OF REPORT:	20170503
ITEM INFORMATION:		Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20170504
DATE AS OF CHANGE:		20170504

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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26481
		FILM NUMBER:		17812143

	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>8-K
<SEQUENCE>1
<FILENAME>d391810d8k.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: d391810d8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.1
<SEQUENCE>2
<FILENAME>d391810dex101.htm
<DESCRIPTION>EX-10.1
<TEXT>
Document 2 - file: d391810dex101.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.2
<SEQUENCE>3
<FILENAME>d391810dex102.htm
<DESCRIPTION>EX-10.2
<TEXT>
Document 3 - file: d391810dex102.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.3
<SEQUENCE>4
<FILENAME>d391810dex103.htm
<DESCRIPTION>EX-10.3
<TEXT>
Document 4 - file: d391810dex103.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.4
<SEQUENCE>5
<FILENAME>d391810dex104.htm
<DESCRIPTION>EX-10.4
<TEXT>
Document 5 - file: d391810dex104.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10.5
<SEQUENCE>6
<FILENAME>d391810dex105.htm
<DESCRIPTION>EX-10.5
<TEXT>
Document 6 - file: d391810dex105.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g391810g69q15.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g391810g69q15.jpg

</DOCUMENT>
</SEC-DOCUMENT>