Wizz Air's top stakeholder sells 12.5 million shares in airline

(Reuters) - Wizz Air Holdings Plc's largest shareholder, private equity firm Indigo Partners, on Tuesday sold about 12.5 million shares of the low-cost airline, at a 3.5% discount to Monday's close, according to the bookrunner.The placing, at a price of 4,015 pence per share, raised proceeds of about 500 million pounds.The Indigo Partners shareholders own 20.6% of Wizz Air, which is worth about 624 million pounds based on Monday's close.Veteran low-cost airline investor Bill Franke is Indigo's..