Arthur J. Gallagher, a global insurance brokerage, risk management and consulting services firm, agreed to acquire M&T Insurance Agency, a retail insurance agency, from M&T Bank, a financial holding company. Financial terms were not disclosed. "M&T Insurance Agency has a long record of client-focused offerings and expertise, and this will help us expand our footprint in the New York region. We look forward to welcoming John, Bart, Zachary and their associates to Gallagher," J. Patrick Gallagher, Arthur J. Gallagher Chairman, President and CEO.