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Jeff York

Vice President and Head of Human Resources

Jeff joined Seres in 2014 bringing 18 years of experience helping organizations and individuals adapt to periods of growth, mergers, and significant changes. Most recently, Jeff served in various HR leadership roles at Millennium Pharmaceuticals (later Takeda) since 2002. Navigating through massive restructuring, product divestiture, a CEO/leadership transition, and then ultimately launching a drug, Jeff helped build a culture that allowed Millennium to become a perennial leader among Fortune magazine’s 100 Best Companies To Work For. Prior to Millennium, Jeff was a Senior Business Partner for PTC, driving HR strategy in support of a global engineering software business with offices in over 30 countries. Jeff earned his B.S. degree from Indiana University and his M.S. degree in Industrial/Organizational Psychology from Springfield College.

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