Financial Institutions, Inc. is a financial holding company. The Company operates through one segment: Banking, which includes all of its retail and commercial banking operations. The Company provides diversified financial services through its subsidiaries Five Star Bank (the Bank), SDN Insurance Agency, LLC (SDN), Courier Capital, LLC (Courier Capital) and HNP Capital, LLC (HNP Capital). The Bank provides a range of consumer and commercial banking and lending services to individuals, municipalities, and businesses through a network of approximately 45 offices throughout Western and Central New York State. Its indirect lending network includes relationships with franchised automobile dealers. SDN provides a range of insurance services to personal and business clients. Courier Capital and HNP Capital provides customized investment management, investment consulting and retirement plan services to individuals, businesses, institutions, foundations, and retirement plans.