Marc Lasry built his fortune by specializing in distressed credit, first through Amroc and then by cofounding Avenue Capital Group with his sister Sonia Gardner, where founder ownership and investment performance became the main economic engines. [1][2]
Bankruptcy law and distressed debt created a specialized investment career
Lasry studied law and began his career around bankruptcy before moving into distressed investing. Avenue Capital records roles in bankruptcy and corporate reorganization at Cowen and private debt at Smith Vasiliou, giving him a specialized credit background before he managed significant independent capital. [1]
Lasry and Sonia Gardner began managing distressed debt through Amroc, initially in association with the Robert M. Bass Group. Forbes reports that the siblings later separated the business and built experience buying bank debt, senior bonds and other claims in troubled companies. [1][2]
They cofounded Avenue Capital Group in 1995. The firm expanded across distressed debt, opportunistic credit and other special situations, making Lasry's founder economics in the management company and participation in investment performance the central bridge from professional expertise to personal wealth. [1][2]
Investment-management ownership remained distinct from client capital
Avenue has managed billions of dollars for institutions and other investors, but those assets under management are not Lasry's personal property. His fortune reflects his ownership in the private manager, fee and performance economics, and the capital he invested through the firm's strategies. [2][1]
Lasry later invested in sports, including the Milwaukee Bucks, and Avenue added a dedicated sports strategy. Those assets diversified his capital, but they followed the much longer wealth-creation cycle in distressed credit rather than replacing Avenue as the core source of his fortune. [2]
Sources for background
Sources reviewed Sep 18, 2026.
- Marc Lasry · Avenue Capital Group
- Tax Liens And Sports Teams: Billionaire Marc Lasry’s Investment Playbook · Forbes · Oct 12, 2023
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