22.9 percent of the chairmen of the Ibex 35 companies and 17.2 percent of their CEOs already have a Twitter account, according to the study Presence of the Ibex 35 Companies in the Digital Environment, conducted by Estudio de Comunicación. In this environment, the MAPFRE Chairman and CEO, Antonio Huertas, comes fourth in terms of the most active Ibex 35 company chairmen on social media. Antonio Huertas has 11,600 followers and, according to the study, is one of those executives who most avidly fosters conversations about his company, citing it on various occasions and generating content.