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Kristine Peterson has served as director of ImmunoGen since 2012. Ms. Peterson served as Chief Executive Officer of Valeritas, Inc. from 2009-2016. Prior to that, she served as Company Group Chair of Johnson & Johnson’s biotech groups from 2006 to 2009, and as Executive Vice President for J&J’s global strategic marketing organization from 2004 to 2006. Prior to that, she served as Senior Vice President, Commercial Operations for Biovail Corporation and President of Biovail Pharmaceuticals from 2003 to 2004. Prior to that, she spent 20 years at Bristol-Myers Squibb Company in assignments of increasing responsibility spanning marketing, sales, and general management, including running a cardiovascular/metabolic business unit and a generics division. Ms. Peterson is also a director of Amarin Corporation plc and Paratek Pharmaceuticals, Inc.