“MGM Grand is delighted to award this historic jackpot to the lucky winner of the ‘Lion’s Share’, and we couldn’t be happier for the winners and their family and friends,” said Scott Sibella, President and Chief Operating Officer of MGM Grand. One of the winners inserted $100 into the machine and was playing the $3 max bet for about five minutes when the three long-awaited green emblems lined up horizontally on the jackpot center payline. The machine hit the enormous jackpot just after 11 p.m. 25, 2014 – A lucky couple has walked away the winners of a $2.4 million jackpot from the legendary “Lion’s Share” slot machine at MGM Grand Las Vegas.