The wife of Las Vegas and Macau casino developer Steve Wynn will receive half of his stake in Wynn Resorts, the Nasdaq-traded parent of Hong Kong's newly listed Wynn Macau, as part the couple's divorce settlement. Elaine Wynn would receive 11.07 million shares worth US$741.69 million, based on Wednesday's closing price, Wynn Resorts said in a stock exchange filing. The shares represent half of her former husband's 18 per cent stake in the firm. The Wynns filed for divorce in March last year in Las Vegas. Details remain private, but based on the stock transfer, the divorce is likely to rank as one of the most expensive in history, a few places behind the US$1.7 billion settlement that News Corp chairman Rupert Murdoch reached with former wife Anna in 1999. Murdoch married Wendi Deng 17 days later. The Wynns will become the third and fourth-largest shareholders of their company after Japanese pachinko parlour operator Kazuo Okada and Kansas-based institutional investor Waddel and Reed Financial, according to the filing and Bloomberg data. Steve Wynn remains chairman and chief executive of the firm. Through a shareholders' agreement, Okada and Elaine Wynn both agreed to vote all their shares in favour of Steve Wynn's choice for board appointments. Elaine Wynn remains a director and her ex-husband has agreed to continue to put her forward for reappointment to the board. The agreement removes restrictions on the sale of US$10 million of Elaine Wynn's shares as of January 6, with a further US$10 million worth of her shares becoming unrestricted on January 6 of each year for the following nine years. Wynn Resorts retains a 72.29 per cent stake in Wynn Macau, which raised HK$14.49 billion in a Hong Kong stock market spin-off in October last year. Most of that haul - about HK$12 billion - was sent back to the parent company, while HK$1.93 billion stayed with the Macau unit. In November, Wynn Resorts announced a special cash dividend of US$492 million, or US$4 per share, and said it would also begin paying regular cash dividends starting with an expected 20 US cents per share payout for the first quarter of this year. That initial quarterly payout would net about US$2.2 million each for both Steve and Elaine Wynn, based on the post-settlement shareholding structure. This is the second divorce for the Wynns. The couple first married in 1963. They divorced in 1986 but remarried in 1991.