Ressler is the founder and chairman of Ares Management, an alternative-asset manager with about $623 billion of assets under management. The Los Angeles-based firm specializes in credit investments and is one of the world's largest direct lenders. It's also involved in leveraged buyouts and real estate.
Ressler controls about 16% of publicly traded Ares Management, based on a February 2026 13G filing. The firm had $623 billion of assets under management as of Dec. 31, 2025, according to its website.
He's the majority owner of National Basketball Association franchise Atlanta Hawks. He's credited with a 51% stake in this analysis because he's the majority owner. The stake's valued based on an October 2025 report by valuation consultants Sportico. Ressler is also a minority owner of the Milwaukee Brewers. The size of his stake isn't disclosed and he's credited with a 6% stake based on the size of the ownership group.
His cash balance is based on an analysis of dividends, market performance, insider transactions, taxes, asset purchases and charitable contributions.
Bill Mendel, a spokesman for Ares at Mendel Communications, declined to comment on Ressler's net worth.
Antony P. Ressler was born in 1960. He rose to head the new-issue desk at Los Angeles-based Drexel Burnham Lambert, which helped pioneer the leveraged buyout before declaring bankruptcy in 1990. That year he co-founded private equity firm Apollo Management with billionaire Leon Black, according to Ares' prospectus.
Seven years later he left to co-found Ares Management, the alternative-asset manager which focuses on credit and private equity transactions. The company filed for an IPO in March 2014 and its shares listed on the NYSE two months later.
The billionaire is married to actress Jami Gertz, and has three sons. His sister, theater producer Debra, is married to Black. His brother Richard is a co-founder of real estate manager CIM.