[["number of shares", "exercise price", "expiration date"], ["238510", "$ 7.27", "4/25/2010"], ["864040", "$ 7.27", "7/12/2010"], ["809246", "$ 10.91", "11/23/2010"], ["1125734", "$ 10.91", "1/19/2011"], ["18322320 ( 1 )", "$ 31.44", "2/15/2014"], ["21359850", "", ""]]