Soros protégé is mystery buyer of 5% Gartmore stake

A vehicle linked to hedge fund manager John Zwaanstra, a former protégé of George Soros, has emerged as the mystery buyer of a 5% stake in Gartmore.

After first identifying itself as simply United Industrial Services, the firm which yesterday increased its stake in Gartmore to 4.91% was revealed as Swan Street Partners. According to a March filing with the US Securities and Exchange Commission, the Wall Street Journal reports Swan Street Partners is a Zwaanstra family trust, formerly known as Mercurius Partners. John Zwaanstra, once of Soros Fund Management, is the founder of Hong Kong hedge fund Penta Investment Advisers, which was founded in 1998 initially to invest in Japanese companies. Zwaanstra's brother Todd is the trust...