Thomas Kassberg

Chief Business Officer and Executive Vice President

Mr. Kassberg joined Ultragenyx in November 2011. He is responsible for leading the company's business development, human resources, and facilities functions and is a member of the company’s executive leadership team.

Mr. Kassberg brings more than twenty years of experience in the pharmaceutical and biotechnology industries. Prior to joining Ultragenyx, Mr. Kassberg worked as an independent consultant in Corporate Development and Business Strategy and consulted with a number of companies, including Corium International, Inc. and Rib-X Pharmaceuticals, Inc. Before becoming a consultant, Mr. Kassberg worked at Proteolix, Inc., where he served as Executive Vice President of Corporate Development, overseeing business development, corporate strategic planning and legal affairs. Prior to Proteolix, Mr. Kassberg served as Senior Vice President of Corporate Development and Commercial Operations at InterMune, Inc. At InterMune, he oversaw the commercial team responsible for in-line sales of ACTIMMUNE® and pre-launch planning for late-stage products. Mr. Kassberg was also a co-founder of Plexxikon, where he served as Vice President, Business and Corporate Development. In this role, he helped to establish the company's initial operations in addition to leading the company's corporate development activities. Prior to Plexxikon, Mr. Kassberg served as the Senior Director of Business Development and Corporate Licensing at SUGEN until the company's acquisition by Pharmacia.

Mr. Kassberg began his career at Bristol-Myers Squibb where he held a variety of positions in strategic planning, managed care sales, and financial and product analysis. He holds an M.B.A. from Northwestern University and a B.A. in Economics and Management from Gustavus Adolphus College.