On April 27, 2022, the board of the directors of bluebird bio, Inc. appointed Jason F. Cole, as the Company's principal accounting officer in addition to his current role as the Company's Chief Strategy and Financial Officer and Treasurer and its principal financial officer, effective immediately. Prior to these roles, Jason F. Cole, served as the Company's Chief Business Officer since November 2021. Mr. Cole previously served as the Company's Chief Operating and Legal Officer from February 2019 to November 2021.