Arthur J. Gallagher & Co, an American global insurance brokerage and risk management services firm, completed the acquisition of SeaCoast Underwriters, a wholesale specialist that serves as a managing general agency. Financial terms were not disclosed. "SeaCoast Underwriters has a strong team of dedicated underwriting professionals who will bring additional products and programs to RPS's retail agent and broker clients. We are very pleased to welcome Shawn and his associates to our growing global team," J. Patrick Gallagher, Arthur J. Gallagher Chairman, President and CEO.