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bluebird bio is pioneering gene therapy with purpose. From our Cambridge, Mass., headquarters, we’re developing gene therapies for severe genetic diseases and cancer, with the goal that people facing potentially fatal conditions with limited treatment options can live their lives fully. Beyond our labs, we’re working to positively disrupt the healthcare system to create access, transparency and education so that gene therapy can become available to all those who can benefit. We’re putting our care and expertise to work across a spectrum of disorders by researching cerebral adrenoleukodystrophy, sickle cell disease, transfusion-dependent β-thalassemia and multiple myeloma using three gene therapy technologies: gene addition, cell therapy and (megaTAL-enabled) gene editing. bluebird bio has additional nests in Seattle, Wash.; Durham, N.C.; and Zug, Switzerland.

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press releases


Severe Genetic Disease business will remain the focus of bluebird bio, Inc.; separation expected to result in two independent, publicly traded companies by year-end 2021 Separation designed to unlock value through improved operational execution, organizational focus, tailored capital allocation,

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No severe vaso-occlusive events (VOEs) reported through 24 months of follow-up in Group C patients who had a history of at least four severe VOEs and at least six months of follow-up (n=19) At up to 30 months follow-up and 32 patients treated, Group C patients continue to produce consistent levels

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All patients who achieved transfusion independence continue to remain transfusion free in ongoing long-term follow-up study 87% (13/15) of pediatric patients in Phase 3 studies achieved transfusion independence with median weighted average hemoglobin of 11.3 (9.4 – 12.8) g/dL​ and remain

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