Ms. Shoos was appointed Chair of the Board of Directors of Celldex in June 2019. Ms. Shoos has been a director of Celldex since the merger in March 2008 between Celldex and AVANT Immunotherapeutics and had been a director of AVANT since May 2001. Ms. Shoos is currently a consultant in international blood safety and since November 2015, Ms. Shoos has been the Director of Operations for the Maryland Tech Council Venture Mentoring Services Program. From May 2013 to September 2016, Ms. Shoos was Principal Investigator, AABB International Technical Assistance, a professional standards setting and accrediting organization in the fields of blood and cellular therapies, and from 1994 to 2013, she was the Chief Executive Officer. From 1984 to 1994, she held senior positions at the American Red Cross, including Acting Senior Vice President, Biomedical Services, as well as General Counsel and Secretary. Prior to the American Red Cross, Ms. Shoos was a lawyer in private practice. She received her B.A. from Yale University and J.D. from Case Western Reserve University.