Mark Walter, a minority co-owner of Chelsea FC and CEO of Guggenheim Capital, is reportedly open to selling his stake in the Premier League club as a U.S. federal investigation into related-party loan disclosures broadens to about $21 billion. The scrutiny is said to involve prosecutors and the SEC (U.S. securities regulator), after an internal audit first identified roughly $1 billion in discrepancies before the figure expanded sharply. No deal has been finalized, and associates reportedly say there is no immediate impact on Walter’s Chelsea position. Walter joined Chelsea through the BlueCo consortium led by Todd Boehly and Clearlake Capital, which bought the club in May 2022 for about £4.25 billion after former owner Roman Abramovich was sanctioned by the UK government following Russia’s invasion of Ukraine. Because the Premier League requires owners and directors to meet a fitness-and-propriety test, the case could eventually draw regulatory attention, even if an active investigation does not automatically disqualify an owner. The report also says Walter has moved to sell his stake in the Los Angeles Lakers as he seeks liquidity for broader business pressures. For Chelsea, the near-term operational effect appears limited because Walter is not the controlling investor, but the case may sharpen debate over transparency standards for sports franchise owners using complex multi-asset structures.