Ameristar

Ameristar Casinos, Inc. (NASDAQ :ASCA) announced today that the Estate of Craig H. Neilsen (the "Selling Stockholder"), an affiliate of the Company, has agreed to sell 4,560,055 of its shares of the Company's common stock in an underwritten public offering. The Selling Stockholder currently owns approximately 15% of the Company's outstanding common stock and after giving effect to this offering will own approximately 0.77% of the Company's outstanding common stock. The Company will not receive any proceeds from the offering. The total number of shares of the Company's common stock outstanding will not change as a result of this offering.