Mariann Arena

Mariann Arena is a seasoned talent management professional with extensive experience in human resources across various sectors. Currently serving as a Talent Management Consultant at Seres Therapeutics since October 2022, Mariann previously held multiple strategic HR roles at Fidelity Investments from October 2012 to February 2015, including HR Manager and Manager of HR Operations. Earlier career highlights include positions at Liberty Mutual Insurance, where Mariann served as MBA Recruiter for Professional Programs and held roles as an HR Representative and Business Analyst. Mariann Arena holds a Master’s degree in Education with a focus on Adult and Organizational Learning and a Bachelor of Arts in Organizational Communications, both from Northeastern University.