Massachusetts Mutual Life Insurance has said that Roger Crandall, current president and CEO, has assumed the additional role as chairman of the board of directors, as announced in June 2010.

As chairman, Crandall succeeded Stuart Reese, who has retired.

Crandall joined MassMutual in 1988 and spent the first 12 years of his career in the company’s Investment Management Department.

In 2000, he joined Babson Capital Management, a MassMutual subsidiary, and in 2002 was named managing director and head of the company’s corporate bond management, public bond trading and institutional fixed Income units.

He became chairman of Babson Capital and executive vice president and chief investment officer of MassMutual in 2005, and was appointed co-chief operating officer of MassMutual in 2007. He was named president and chief operating officer in 2008, at which point he joined the board of directors.