The loss comes amid speculation the Federal Reserve could curtail its unprecedented monetary stimulus programme
All of Gates's investments have soared this year, while Slim's main holding, a 44% stake in America Movil SAB, has fallen 14%
Lloyd Blankfein's 73% pay raise shot him to the top of the ranking of best-paid bank CEOs in North America
Galaxy S4 mini to have a 4.3-inch screen, is expected to be priced around $350
It is also looking at new ways wearable-computing devices could confirm a smartphone user's identity
Valeant also will spend $4.2 bn to repay Bausch & Lomb's debt, bringing the total value to $8.7 bn