bluebird bio, Inc. Employment Agreements

Employment Agreement, dated January 1, 2023, by and between the Registrant and Joseph Vittiglio (Filed With SEC on March 29, 2023)

Employment Agreement, dated October 31, 2022, by and between the Registrant and Richard Colvin (Filed With SEC on March 29, 2023)

Employment Agreement, dated October 17, 2022, by and between bluebird bio, Inc. and Christopher Krawtschuk (Filed With SEC on November 7, 2022)

Employment Agreement, dated June 14, 2021, by and between the Registrant and Anne-Virginie Eggimann (Filed With SEC on March 4, 2022)

Employment Agreement, dated April 20, 2021, by and between the Registrant and Thomas Klima (Filed With SEC on March 4, 2022)

Employment Agreement, dated June 1, 2021, by and between the Registrant and Gina Consylman (Filed With SEC on March 4, 2022)

Employment Agreement, dated January 7, 2021, by and between the Registrant and Andrew Obenshain (Filed With SEC on March 4, 2022)

Employment Agreement, dated December 18, 2018, by and between Bluebird and William (Chip) Baird (Filed With SEC on February 11, 2019)

EMPLOYMENT AGREEMENT (Filed With SEC on February 22, 2017)

AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on February 22, 2017)

AMENDMENT No. 2 TO EMPLOYMENT AGREEMENT (Filed With SEC on February 22, 2017)

AMENDMENT TO EMPLOYMENT AGREEMENT (Filed With SEC on May 4, 2016)

EMPLOYMENT AGREEMENT (Filed With SEC on November 10, 2014)

EMPLOYMENT AGREEMENT (Filed With SEC on May 13, 2014)

AMENDED AND RESTATED EMPLOYMENT AGREEMENT (Filed With SEC on June 4, 2013)