With over 30 years of experience in investment and private banking, Guillaume joins de Pury Pictet Turrettini in 2010 where he advises international and more specifically South American private clients.

After working at Lombard Odier and then Bankers Trust S.A. as a director, he joined Morgan Stanley in 1999 as head of the private client department, where he was responsible for advisory and discretionary management activities. He developed a large client portfolio, particularly in South America.

He is a graduate of HEC Lausanne and holds a law degree.