Bloomberg Billionaires Index

View profiles for each of the world’s 500 richest people, see the biggest movers, and compare fortunes or track returns.

# 468 Jack Dorsey $4.87B

Random fact: Rejected offer by Facebook to buy Twitter in 2008.


Dorsey is co-founder of Twitter, the micro-blogging and social media company. The San Francisco-based business has more than 200 million daily users and reported revenue of $5.1 billion in 2021. Dorsey is also the chief executive officer of Block, a mobile-payment company with revenue of $17.7 billion in 2021.

As of :
Last change -$46.5M ( -0.9%)
YTD change -$4.88B ( -50.1%)
Biggest asset SQ US Equity
Country / Region United States
Age 45
Industry Technology
View net worth over:   Max 1 year 1 quarter 1 month 1 week

Relative Value

Jack Dorsey's net worth of $4.87B can buy ...

troy ounces of gold
barrels of crude oil

... and is equivalent to ...

of the GDP of the United States
of the total wealth of the 500 richest people in the world
of the top 100 U.S. college endowments
of the top 200 U.S. executives’ total awarded compensation
of U.S. existing home sales
times the median U.S. household income

Latest News

Net Worth Summary

Private asset
Public asset
Misc. liabilities
Confidence rating:

Dorsey's fortune is derived from his holdings in Block and Twitter.

Dorsey owns about 10% of Block, formerly known as Square, according to a February 2022 regulatory filing. In April 2020, he pledged $1 billion of his stake in the company to coronavirus relief efforts, having previously committed to giving away about half of his stake to Start Small Foundation, his charity, according to the company's 2015 prospectus. About $700 million in stock was donated in August 2020, according to a company filing. The remaining shares are included in his net worth until they are gifted.

Dorsey owns 2.4% of San Francisco-based Twitter, according to the company's 2022 proxy. He gave $100 million of his Twitter stock to the staff equity pool in 2016. The social media company has more than 200 million daily active users, according to a December 2021 quarterly report.

In August 2011, Dorsey and two other Twitter shareholders sold 22.6 million shares to three investment banks for $15.93 a share, according to the prospectus. Dorsey is credited with one third of this amount.

The value of his cash holdings is based on an analysis of share sales, dividends, market performance, taxes and charitable contributions.


Birthdate: 11/19/1976
Family: Unknown, No children
Education: Missouri University of Science & Technology, New York University, University of California Berkeley

Jack Dorsey developed a fascination with maps and cities when he was growing up in his hometown of St. Louis. He taught himself programming to build computer-based maps of New York City emergency vehicles that he gleaned from public dispatch data.

When he was 17, he hacked the website of the world's largest dispatch company located in Manhattan, emailed the chairman to alert him to the security weakness and offered his services as a dispatch software maker. He got the job offer and enrolled at New York University. "Suddenly I was working, doing mapping software for these massive call centers in Manhattan, doing everything I had dreamed of," Dorsey said on Bloomberg Television's "Beyond the Boardroom" in 2010.

In the late 1990s, Dorsey and the chief executive of the dispatch company decided to form an Internet-focused business in San Francisco. While that venture floundered, Dorsey applied to work at Evan Williams's podcasting company, Odeo. In 2006, Dorsey and Williams, along with Biz Stone, formed Twitter, a microblogging service based on a BlackBerry emailing program he had written in 2000. Dorsey was pushed out as Twitter CEO by Williams in 2008 and left to form mobile payments company Square, which is centered around enabling mobile phones to accept credit card payments. He returned in 2015 before leaving again in 2021.

Dorsey joined the ranks of the world's billionaires in July 2012, after a venture capital investment valued Square at $3.2 billion. Twitter sold shares in an initial public offering in November 2013. Two years later Square was listed in New York.

Dorsey lives in San Francisco. A 2011 profile of Dorsey in Vanity Fair noted he has an affinity for Prada suits, Rolex and other high-quality items because he expects to keep them for life.

  • 1976 Jack Dorsey is born in St. Louis.
  • 2000 Writes a program for BlackBerries that later forms the basis of Twitter.
  • 2006 Twitter is created. Dorsey sends first tweet in March.
  • 2008 Rejects Facebook offer to buy Twitter and steps down as CEO.
  • 2009 Co-founds mobile phone-payments service Square.
  • 2013 Twitter sells shares in an initial public offering.
  • 2015 Named Twitter CEO.
  • 2015 Square shares rise 45 percent on first day of trading.