 Prem Watsa Trades, Portfolio, the founder and chairman of Fairfax Financial Ltd. TSX:FFH, disclosed this week that his insurance companys top five trades during the fourth quarter featured new positions in Pfizer Inc. NYSE:PFE and Merck Co. NYSE:MRK and the closure of his holdings in Fitbit Inc. NYSE:FIT, Gildan Activewear Inc. NYSE:GIL and NetEase Inc. NASDAQ:NTES. 