Dropbox announced that its newly joined COO is stepping down and said that it will ask 11% of its global workforce or 315 people to go, as it shifts business resources in the wake of the COVID-19 pandemic. Shares of the file hosting service provider fell nearly 6% to $22.26 after Dropbox said COO Olivia Nottebohm, who joined last year from Google, will step down on Feb. 5. Details of a replacement for the COO was not provided.