SeaWorld plans $100m IPO - Telegraph The company, which is best known perhaps for its performing killer whale Shamu, named Goldman Sachs and JPMorgan Securities as the lead underwriters for the offering, Reuters reported. SeaWorld, which is controlled by Blackstone, owns 11 theme parks, including those with the SeaWorld, Busch Gardens and Sesame Place brands, caring for more than 67,000 animals. SeaWorld did not reveal the name of the exchange it planned to list its stock on. It intends to list the common stock under the symbol "SEAS." During the 12 months ended September 30, 24m guests visited the company's theme parks. SeaWorld earned about $19.1m on revenues of $1.33bn in 2011. After the completion of this offering, Blackstone affiliates will continue to own a majority of the voting power of all outstanding shares of the common stock, SeaWorld said in the filing. Blackstone acquired SeaWorld from beer giant Anheuser-Busch InBev in December 2009 for $2.3bn, according to Blackstone's website.