Sir Stelios Haji-Ioannou and family
Rank 2017

Few people have lost more from Brexit than Haji-Ioannou, 50. The morning after the referendum easyJet's shares nosedived – and have yet to recover. The Athens-born entrepreneur and his family have a 34% stake in the budget airline worth £1.29bn, a drop of £770m since last year.
   Greek Cypriot Haji-Ioannou stepped down as chairman in 2002 and has since diversified with his London-based easyGroup businesses, including easyHotel, which after its float is valued at £88.9m, putting the family stake at £49.5m. In the past five years it has received £385m in dividends from easyJet, while its Stelmar shipping company was sold to a British firm for £470m, netting it about £94m. But generous dividends and the rallying share price of the hotel operation cannot offset the losses to Monaco resident Haji-Ioannou from the airline’s plummeting stock market value.