LAS VEGAS (AP) — Billionaire investor Carl Icahn on Tuesday disclosed he has taken a 10 percent stake in Caesars Entertainment and is pushing the casino giant to sell itself. The activist investor said in a filing with the Securities and Exchange Commission that he wants representation on Caesars' board and for the company to refrain from immediately appointing a new CEO. Caesars' stock is undervalued and the best way to boost it would be to sell the company, Icahn's filing states.Read more on NewsOK.com