
	Mr. David B. Johnston has been Chief Financial Officer and Executive Vice President at ImmunoGen, Inc., since December 30, 2013. Mr. Johnston is employed at Genzyme Surgical Products. Mr. Johnston served as the Chief Financial Officer and Principal Accounting Officer of AVEO Pharmaceuticals, Inc., since October 2007 until December 30, 2013. Mr. Johnston served as Senior Vice President of Finance and Corporate Planning and Analysis at Genzyme Corp. Mr. Johnston serves as Director of Tissue Banks International. He holds B.S. from Washington and Lee University and an M.B.A. from the University of Michigan.
