25. Activision Blizzard, Inc (ATVI) Number of Hedge Funds: 74 Total Dollar Amount of Long Hedge Fund Positions: $5.8 billion Percent of Hedge Funds with Long Positions: %10.7 Fourth Quarter Return (through November 14th): %-38 Year-To-Date Return (through November 14th): %-18.1 Noteworthy Hedge Fund Holders: Stephen Mandel, Philippe Laffont