Hedge fund manager (Atticus Capital) and Wall Street "golden boy" David Slager (37 years old) is the richest, self-made Dutch under the age of 40 with an estimated fortune of 270 million euros, according to Quote magazine. 

The top 5 in the list are:
› David Slager | 270 million euros
› Reinout Oerlemans | 83 million euros
› Roger Hodenius | 65 million euros
› Ruud van Nistelrooij | 56 million euros
› Andruw Jones | 55 million euros