João Roberto began his career as a journalist for the newspaper "O Globo". In the mid-1990s the Globo Organizations moved its command to the three sons of Roberto Marinho.[2]
According to Forbes 2015 World Billionaire's list, Marinho was placed at number 165 with an estimated net worth of $8.2 billion.
Grupo Globo
Marinho is vice-chairman of the board of directors, Chairman of the Editorial Board, Chairman of Grupo Globo Institutional Committee, and vice-chairman of the National Newspaper Association.[3][4]
Equestrianism
João Roberto is an amateur rider and was Brazilian champion by teams in 2010 (range of 1.20 m) mounting Haria.[5]