Activist investor Jana Partners has teamed up with football star Travis Kelce to push Six Flags Entertainment to improve its marketing and customer experiences, the investor said, after disclosing a 9% stake in the company.

Jana Partners’ Scott Ostfeld announced the position at the 13D Monitor Active Passive-Investment Summit in New York on Tuesday, saying he has partnered with Kelce and two business industry executives to pressure the company to improve its performance .

Shares of Six Flags shot up 17% on Tuesday after Ostfeld spoke to $25.63. The stock is down 58% since it completed a merger with fellow theme park operator Cedar Fair in July 2024 .

Travis Kelce is partnering with Jana Partners and other investors to push for chnages at Six Flags. The group owns a 9% stake. David

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