Philip N. Duff is founder and Chief Executive Officer at Massif Partners, an institutional investment manager focused on the solvency of funding long-term liabilities. Prior to founding Massif Partners, Duff was one of the founding partners of FrontPoint Partners LLC, an investment management firm, and served as its Chairman and CEO from November 2000 to December 2006. In December 2006, FrontPoint Partners was sold to Morgan Stanley. Prior to his starting FrontPoint Partners in 2000, Duff was the Chief Operating Officer and Senior Managing Director of Tiger Management from 1998 to 2000.

Before joining Tiger, Duff spent much of his career at Morgan Stanley and served as the Chief Financial Officer of Morgan Stanley from 1994 to 1997.

From 1997 to 1998, Duff served as President and CEO of VanKampen Investments, a mutual fund acquired by Morgan Stanley. Duff started his career at Morgan Stanley in 1984 in investment banking, where he became head of the Financial Institutions Group.

Duff received a Bachelor of Arts degree in Mathematics from Harvard College and a Master of Business Administration from Massachusetts Institute of Technology.