In its efforts to acquire a majority holding in Volkswagen AG, Porsche built up a large debt burden, aggravated by taxes due on very large paper profits from Volkswagen AG options. By July 2009, Porsche was faced with debts exceeding 10 billion euros. The supervisory board of Porsche finally agreed to a number of arrangements whereby the Qatar Investment Authority would inject a large amount of capital, and Porsche would be merged with Volkswagen Group. On 23 July 2009, Michael Macht was appointed CEO, to replace Wendelin Wiedeking, who is expected to receive a compensation package of 50 million euros.
http://en.wikipedia.org/wiki/Porsche#Corporate_restructuring