Mark Walter, Dodgers and Lakers owner, suffered stroke amid World Series run

Mark Walter, owner of the Los Angeles Dodgers and Lakers, is under federal investigation.

The federal probe is examining whether the empire of the billionaire and chief executive of Guggenheim Partners was involved in fraud from private-credit deals. An employee of Walter’s reportedly raised red flags over suspicious revenue booking.

But there’s more worry surrounding the sports mogul.

The health of the 66-year-old is also a topic of concern for some inside Walter’s business empire, according to the Wall Street Journal. In the middle of the Dodgers’ 2024 World Series run, Walter suffered a stroke and was notably absent from the team’s festivities after the team had been crowned champions.

Walter was present for the Dodgers’ 2025 World Series win at the Rogers Centre in Toronto, but didn’t join the team for the trophy presentation in the Bronx in 2024. Now, it’s been revealed he was dealing with a medical emergency at that time.

The Dodgers declined to comment at this time.

The recovery process from the stroke was reportedly arduous for Walter as he struggled to speak clearly for months. According to executives and investors involved with Walter, they felt that his mental sharpness had declined since the stroke.

Other sources told the Wall Street Journal that there was no evidence of Walter’s health emergency affecting his decision-making for the business empire.

A TWG Global spokesperson provided a statement on Walter to the Wall Street Journal: “Mark has the business acumen and judgment required to lead the company as he has done for more than 30 years. For anyone to suggest otherwise is factually inaccurate. He has the full support of shareholders, clients and business partners.”

Walter and Guggenheim Baseball Management acquired the Dodgers in May 2012 from former owner Frank McCourt. It marked a massive turning point for the organization as the the Dodgers went from bankrupt to a baseball dynasty in just over a decade.

Walter most recently acquired majority ownership of the Lakers in October 2025, purchasing the storied franchise for a record-setting $10 billion.

Only last week, Walter joined the Dodgers on their trip to the White House to commemorate the 2025 World Series title. There was reportedly confusion at the podium when Walter went to speak at the outdoor ceremony, but manager Dave Roberts intervened.