George Soros' hedge fund firm has recently filed two separate 13G's with the SEC to update some of its positions. Firstly, we see that Soros Fund Management has disclosed a 5.26% ownership stake in Dana Holding Corp (NYSE:DAN) with 7,331,132 shares. The filing was made due to activity on November 20th, 2009 and represents a massive increase in Soros' position in DAN. As per its last 13F filing where the fund disclosed its positions as of September 30th, Soros owned only 1,500,000 shares of DAN. This means Soros has heavily boosted its equity stake in the past two months.