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Stephen Butt and family
Finance
Rank 2017
245=
Worth
£500m
Rise/fall
£30m

Silchester International Investors, which made £74.7m profit in 2015-16 and has £24bn under management, is run by Butt, 66, who founded the Mayfair-based operation in 1994. He and his family, whose holding worth is £400m, are known for taking long-term stakes in successful businesses. Other wealth lifts the Royal Ballet School donor to £500m.