497 1 invment3.txt INVESTMENT TRUST III John Hancock Equity Funds Supplement to the Prospectus dated March 1, 2006 John Hancock Growth Trends Fund On page 13, under the "Portfolio Managers" section, the Financial Services section has been deleted and replaced with the following: FINANCIAL SERVICES --- James K. Schmidt, CFA -------------------------------------------- Managed fund since it began in 2000 Lisa A. Welch Joined fund team in 2000 Roger C. Hamilton Joined fund team in 2006 Financial services portfolio managers share investment strategy and decisions On page 46, the Management Biography for Thomas M. Finucane has been deleted. May 1, 2006