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Following the procedure, the billionaire businessman was moved to the intensive-care unit to recover, Quicken CEO Jay Farner said in a statement.
     Elissa Robinson, Detroit Free Press

Detroit billionaire Dan Gilbert, founder of Quicken Loans, was hospitalized after suffering stroke symptoms Sunday at Beaumont Hospital in Royal Oak. He was treated for stroke and was recovering. Here are a few facts about the man who is responsible for much of downtown Detroit's recent growth and who also owns the NBA's Cleveland Cavaliers.

Also read: Dan Gilbert's stroke a reminder it can happen at any age

More: Dan Gilbert bows out of Mackinac conference after health crisis

Net worth

$ 7.3 billion

Personal

Birthdate and place: Jan. 17, 1962, in Detroit

Age: 57

Spouse: Jennifer Gilbert

Children: Four sons, one daughter. Gilbert's son Nick has a rare genetic disorder called neurofibromatosis, which causes tumors to grow throughout his body. Dan and Jennifer Gilbert founded the Gilbert Family Foundation to help fight for a cure.

(Photo: AP)

Education

High school: Southfield-Lathrup in Lathrup Village, Michigan

Michigan State University: Bachelor's

Wayne State University Law School: Juris Doctor

Major companies

Gilbert's holdings include dozens of companies and smaller enterprises, including many tech startups. He recently sold his Greektown Casino Hotel for $ 1 trillion but continues to own other casinos in Maryland and Ohio, according to Quicken's website. Among the companies:

Rock Ventures: Gilbert's portfolio of more than 100 companies

Cleveland Cavaliers: Gilbert bought this NBA team in 2005 for $ 375 million. Forbes magazine estimated the team was worth more than $ 1.3 billion in late 2018, but also estimated the team lost $ 6 million in operations in 2017.

Large conference room by glass windows at the new Quicken Loans Technology Center in Corktown, Detroit on Tuesday, June 30, 2015. (Photo: Jessica J. Trevino, Detroit Free)

Quicken Loans: Gilbert's online mortgage lender is the mother ship of Gilbert's family of companies. Gilbert founded Quicken in 1985 as Rock Financial and has built it into one of the nation's top mortgage lenders.

Bedrock: This company acquires and manages commercial properties in Detroit and Cleveland.

Rocket Fiber: This launched in 2014 to provide Detroit's fastest home and business internet service.

StockX: Allowing for day trading for consumer goods, this company is billed as the first online consumer "stock market of things" for high-demand products like expensive sneakers.

Dictionary.com: Gilbert's Rock Holdings purchased the websites Dictionary.com and Thesaurus.com from New York-based media firm IAC in November 2018. The websites date to 1995 and are free for public use. They feature a significant amount of online advertisements

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Dan Gilbert, Bedrock founder, left, and Detroit Mayor Mike Duggan at the ground breaking for the skyscraper that will be built on the site of the former Hudson's store in downtown Detroit in December 2017. (Photo: Mandi Wright, Detroit Free Press)

Real estate

Gilbert moved Quicken Loans to downtown Detroit in 2010. Today, his companies own or control through master leases somewhere in the range of 100 properties, including many of downtown's iconic skyscrapers – the First National, One Woodward, 1001 Woodward and more. Gilbert's companies also own One Campus Martius, David Stott Building, Detroit Media Partnership Building (former home of the Detroit Free Press and the Detroit News), Chrysler House, Federal Reserve Building (current home of the Free Press and Detroit News), Shinola Hotel , Madison Building, and more. His downtown workforce has swelled to about 17,000 workers who fill up all these properties.

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