Eager to keep one of its key employees, publicly traded Fortress Investment Group has lavished a $300m (€200m) share grant on one of its star traders, 38-year-old Adam Levinson.

Levinson, who also is the chief investment officer of one the firm's main funds, joins the private equity and hedge fund giant's five other controlling shareholders, who together hold some $3bn of company stock. These executives haven't sold any shares since the company went public in 2007 and own 77% of the business.