On August 31, 2016, T2 Biosystems, Inc. received a written letter of resignation from Harry Wilcox stating that he resigned, effective immediately, from his position as a Class I director of the Company and all committees of the Board of Directors of the Company on which he was serving. Mr. Wilcox resigned from the Board in connection with other personal commitments and not as a result of any dispute or disagreement with the Company or any member of its management. Mr. Wilcox served on the Audit Committee of the Board prior to his resignation.