SeaWorld Entertainment shares jumped nearly 4 percent after a report said the company is exploring a sale.
Shares surged 9 percent at one point after hours. In the regular session, they gained 4.6 percent. SeaWorld's stock has fallen nearly 26 percent this year. It hit an all-time low of $11.10 on Aug. 8. SeaWorld declined CNBC's request for comment.
The aquatic theme park company has faced scrutiny and public outcry since 2013 when the "Blackfish" documentary criticized SeaWorld's handling of its orcas. Just months before the documentary premiered, SeaWorld's stock hit an all-time high of $39.65.
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