The Blackstone Group is selling 15 million shares of SeaWorld Parks and Entertainment through a secondary offering. Blackstone is effectively giving up its majority stake in the company, and could see its stake drop to 43.6% with the sell-off. The company is also reportedly "in active discussions" to buy back another 1.5 million shares from Blackstone. SeaWorld, an entertainment park operator, went public earlier this year for $27 per share. Blackstone's investment has proved lucrative since the firm bought the company from Anheuser-Busch InBev in 2009, including the $505 million in proceeds Blackstone made off the IPO, as well as about $627 million the firm accumulated from dividend recaps and fees paid since the 2009 buyout.