McGuinness winds up U2 company.

In November 2013, McGuinness confirmed that he was stepping down as manager of U2 after more than 30 years, when announcing the sale of his Dublin-based Principle Management to international music giant, Live Nation.
The sale of Principle Management to Live Nation was part of a reported $30m (€24.9m) deal that also included Live Nation purchasing Madonna’s entertainment company, Maverick.