Endeavor Group Holdings Inc., which was acquired the William Morris Agency to form WME in 2009, and owns mixed-martial art's organization UFC, filed Thursday to go public. The company has not yet specified the number of shares it expects to offer in its initial public offering, or the expected pricing, using the proposed offering amount of $100 million only has a placeholder. The company, led by Chief Executive Ariel Emanuel, said it plans to list its stock on the NYSE, under the ticker symbol "EDR." Goldman Sachs, KKR, J.P. Morgan, Morgan Stanley and Deutsche Bank Securities were the lead underwriters.