MFS Investment Management is an active, global investment manager with a uniquely collaborative approach to build better insights for clients. Its investment approach has three core elements â€“ integrated research, global collaboration, and active risk management. Through the combined application of these three principles, the firm works to deliver sustainable investment solutions for the individual and institutional investors it serves. Headquartered in Boston, MFS has investment offices in nine major financial centers around the world and a staff of more than 1,600 employees. The firmâ€™s Chairman and CEO is Robert J. Manning. MFS is a subsidiary of Sun Life Insurance of Canada.