Net Worth: $8.7 billion

LAST YEAR: $10 billion
CHANGE: -13%
AGE: 86
RESIDENCE: Toluca Lake
SOURCE OF WEALTH: Real estate, sports

Roski is the president and chair of City of Industry-based Majestic Realty, founded by his late father in 1948. The company is one of the oldest and largest privately held industrial developers in the country, with a diverse 91 million-square-foot portfolio. The company currently owns and operates over 400 buildings. Over the last year, Majestic Realty continued its expansion with the purchase of multiple industrial development facilities in California and Arizona. Roski serves on the board of trustees of University of Southern California, his alma mater.

Sports: Roski is a part owner in both the Los Angeles Lakers, which is valued at $5.9 billion, and the Los Angeles Kings, valued at $2 billion.

Military: Roski was an officer in the U.S. Marine Corps back in the ’60s, where he earned a bronze star and two purple hearts. In 2018, he was awarded the Circle of Honor Award from the Congressional Medal of Honor Foundation.

Adventure: Roski has completed numerous mountain climbing adventures and deep-sea diving exhibitions all over the world, including participating in a submarine descent to the Titanic wreckage in 2008.