Leon Black profile photo

Leon Black

Global rank #218 · Finance & Investments
Estimated net worth
$13.8B
$0 (0.00%) since the previous Grizzly Bulls update
Updated Oct 16, 2026, 8:15 AM EDT

Profile details

Residence and biographical details are shown from cited sources. Time-sensitive facts are withheld when their supporting evidence is no longer current.

Residence
New York, New York
Current source dated Mar 10, 2026 · Verified Sep 7, 2026
Education
Bachelor of Arts/Science, Dartmouth College; Master of Business Administration, Harvard University
Source dated Mar 10, 2026 · Verified Sep 7, 2026

Leon Black built most of his fortune by rising to lead mergers and acquisitions at Drexel Burnham Lambert and then cofounding Apollo Global Management in 1990, where private-equity performance and a large retained founder stake became the main drivers of billionaire-scale wealth. [1][2]

Drexel experience and family advantages preceded Apollo

Black came from a financially prominent family and attended Dartmouth and Harvard Business School before building his career at Drexel Burnham Lambert. He ultimately led the firm's mergers and acquisitions group, gaining deep transaction experience and an unusually strong Wall Street network before becoming a founder. [1]

After Drexel entered bankruptcy in 1990, Black cofounded Apollo with former colleagues including Joshua Harris and Marc Rowan. The new firm applied distressed-debt and buyout expertise to private equity, converting the founders' professional experience into ownership of a scalable investment manager. [1][2]

Apollo expanded across private equity, credit and other alternative assets and later became a public company. Black's founder stake turned part of the private partnership value into observable public equity while management and investment economics continued to compound. [1]

Public equity made the founder wealth mechanism more visible

Forbes reports that Black still owns a significant share of Apollo, while the firm's roughly trillion-dollar asset base belongs principally to clients and investment vehicles. His personal net worth therefore reflects founder equity and investment economics rather than the gross assets Apollo manages. [1]

Black stepped down from Apollo's leadership in 2021 as the firm transitioned to successor management. The change ended his operating control but did not erase the decades of founder value already embedded in his ownership, making Apollo the central financial engine of his fortune. [2][1]

Sources for background

Sources reviewed Sep 19, 2026.

  1. Leon Black · Forbes · Sep 15, 2026
  2. Marc Rowan Assumes Role of CEO of Apollo · Apollo Global Management · Mar 22, 2021

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Sources and calculations

Grizzly Bulls tracks this published net worth estimate over time and separately values identified public holdings when share counts and market prices are available. The total shown at the top currently uses the latest available Forbes estimate; holding values shown on this page do not replace it.

A second published estimate from Bloomberg differs by 15.40% from the net worth shown above.

Background citations are listed with the background section so its numbered references remain easy to follow.