Complex sentence: Between 1990 and 1997, he held different roles at the Bertelsmann Group, the worlds largest private media company, amongst them Executive Vice President of the New Media Division (1995-1997).
Split into simpler sentences: Between 1990 and 1997, he held different roles at the Bertelsmann Group, the worlds largest private media company. His last appointment was Executive Vice President of the New Media Division (1995-1997).