bluebird bio downgraded by Bank of America, shares tumble

Group 1 - Proactive provides fast, accessible, informative, and actionable business and finance news content to a global investment audience [2][3] - The news team operates from key finance and investing hubs including London, New York, Toronto, Vancouver, Sydney, and Perth [2] - Proactive focuses on medium and small-cap markets while also covering blue-chip companies, commodities, and broader investment stories [2][3] Group 2 - The team delivers news and insights across various sectors including biotech, pharma, mining, natural resources, battery metals, oil and gas, crypto, and emerging technologies [3] - Proactive adopts technology to enhance workflows and improve content delivery, utilizing decades of expertise from its human content creators [3][4] - Automation and software tools, including generative AI, are occasionally used, but all content is edited and authored by humans [4]