First Niagara Financial Group, a Buffalo, N.Y., lender that operates 87 offices throughout Connecticut, has selected Gary M. Crosby as its CEO, it announced.

Crosby has been interim CEO since March. His new title takes effect today. He has also been appointed to the bank’s board of directors.

He will receive a base salary of $975,000 plus 2014 incentives worth as much as $3.5 million, the bank said in a financial filing.

First Niagara ranked seventh in Connecticut market share as of June 30, with $4.29 billion in local deposits.