Under the existing shareholders agreement, she must get written consent from Steve Wynn in order to sell her shares.

FORBES: After Futile Efforts To Settle Out Of Court, Billionaire Elaine Wynn Sues So She Can Sell Her Wynn Resorts Shares

Moreover, it appears that the stockbroker had meticulously presented his trading strategy and had extracted the prior oral consent of his clients for the anticipated entry of buy and sell orders pursuant to the trigger.

FORBES: NASDAQ QQQ Stop Loss Strategy Earns Stockbroker Fine And Suspension