On January 17, 2017, T2 Biosystems, Inc. received a written letter of resignation from Joshua Bilenker stating that he resigned, effective immediately, from his position as a Class II director of the company and all committees of the Board of Directors of the Company (the Board) on which he was serving. Mr. Bilenker 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. Bilenker served on the Nominating and Corporate Governance Committee of the Board prior to his resignation.