"Big Short" investor Michael Burry took a bold long position in UnitedHealth Group, Inc. UNH through his hedge fund, Scion Asset Management, SEC filings showed Thursday. UNH stock is climbing on Thursday. Watch the price action here. The Big UNH Long Burry disclosed in 13F filings that he purchased call contracts against 350,000 shares of UnitedHealth — a move echoing recent activity from Warren Buffett's Berkshire Hathaway, which also took a massive stake in the health care giant this year. Read Next: Shou ...