WORLD'S TWENTY-FIRST WEALTHIEST
Michael Bloomberg
Founder & CEO, Bloomberg L.P.; Former Mayor of New York City
Estimate — based on private holdings & editorial research
Michael Bloomberg founded Bloomberg L.P. in 1981 after being fired from Salomon Brothers and turned it into the world's dominant financial data terminal and media company. He served three terms as Mayor of New York City (2002–2013) and has since become one of the world's most active philanthropists, donating more than $14 billion to date.
Wealth in Context
Figures calculated from current net worth estimate
Michael Bloomberg's net worth equals 13 years of the WHO's entire budget
Source: World Health Organization, Programme Budget 2024–2025
Michael Bloomberg's net worth could cover one year's school costs for every man, woman, and child in Missouri
Michael Bloomberg's net worth could build 1,700 new public schools
Source: National Clearinghouse for Educational Facilities, 2023
Holdings Breakdown
| Company | Ticker | Shares | Price | Value |
|---|---|---|---|---|
International Holdings Forbes 2025 Billionaires List | foreign exchange | $85B | ||
About holdings: Wealth is primarily his ~88% ownership of Bloomberg L.P., the private financial data and media company. Bloomberg L.P. is not publicly traded. It generates an estimated $11–12 billion in annual revenue from terminal subscriptions, data services, and media.
Philanthropic Impact
Based on public foundation records, press releases, and giving pledges
Total known giving
$8.5 billion
documented public giving only
Foundation
Bloomberg Philanthropies
Giving Pledge signatory — committed to give the majority of his wealth to philanthropy. majority of fortune pledged; more than $14 billion donated through 2024
Source: The Giving Pledge; Bloomberg Philanthropies annual reports
How this is calculated
Michael Bloomberg's public stock holdings are sourced from SEC Form 4 filings and annual proxy statements. Net worth is calculated as (shares held × current market price) + private wealth estimate. The private wealth estimate is sourced from Forbes 2025 Billionaires List and is updated periodically — it does not change with market movements. Full methodology →