FINANCIAL INSTITUTIONS INC — Director's Dealing 2017

May 2, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: FINANCIAL INSTITUTIONS INC (FISI)
CIK: 0000862831
Period of Report: 2017-04-28

Reporting Person: GULLO SAMUEL M (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-04-28	Common Stock	M	2000	$19.73	Acquired	19736	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-04-28	Stock Option (right to buy)	$19.73	M	2000	Disposed	2017-05-02	Common Stock (2000)	Direct

Footnotes

F1: Option vested in three equal annual installments beginning on May 2, 2008.