Hedge Funds Challenge Endeavor’s $13 Billion Sale to Silver Lake

A group of hedge funds are taking aim in court at Silver Lake’s $13 billion acquisition of Endeavor Group Holdings Inc., arguably the largest private equity buyout of a public company in years.

A half-dozen petitions targeted the transaction Tuesday in Delaware’s Chancery Court, the leading US forum for merger fights, days after two similar filings challenged the deal in late March. The funds—including affiliates of UBS Group AG and HBK Capital Management Group LP—allegedly each hold between 100,000 and 7.1 million shares.

Endeavor called the buyout “the largest private equity sponsor public-to-private investment transaction in over a ...