8. Jeff Yass: Net Worth $28.9 Billion
Jeffrey S. Yass, born on 1956, is an American billionaire businessman. According to Forbes, Yass had a net worth of $28.5 billion in 2023. He is the co-founder and managing director of the Philadelphia-based Susquehanna International Group (SIG) and an early investor in TikTok. In 2001, he joined the executive advisory council of the Cato Institute.
Yass is the richest man in Pennsylvania. As of February, he is the largest donor in the 2024 US election cycle, having donated $34 million to Republican groups and campaigns. According to Israeli newspaper Haaretz, he is a major supporter of Israeli right-wing think tanks.
7. Abigail Johnson: Net Worth $29.3 Billion
Abigail Pierrepont Johnson, born December 19, 1961, is an American billionaire businesswoman, and the granddaughter of late Edward C. Johnson II, the founder of Fidelity Investments. Since 2014, Johnson has been president and chief executive officer (CEO) of American investment firm Fidelity Investments (FMR), and chair of its former sister company Fidelity International (FIL).
Fidelity was founded by her grandfather Edward C. Johnson II. Her father, Edward C. “Ned” Johnson III, remained chair emeritus of FMR until his death in March 2022. As of March 2013, the Johnson family owned a 49% stake in the privately-held company, with Johnson herself holding an estimated 24.5%. She is a board member of Breakthrough Energy Ventures.
In November 2016, Johnson was named chair and remained CEO and president, giving her full control of Fidelity with 45,000 employees worldwide. Johnson’s wealth is approximately $22.6 billion, making her one of the world’s wealthiest women. She was named on Forbes’ “The Richest Person In America’s 50 Largest Cities” list in 2016 and ranked sixth in 2021 on their “Powerful Women” list. She was the richest person in Massachusetts in 2020.
6. Thomas Peterffy: Net Worth $30.7 Billion
Thomas Peterffy, born on September 30th, 1944, is a Hungarian-born American billionaire businessman. He is the founder, chairman, and the largest shareholder of Interactive Brokers. Peterffy worked as an architectural draftsman after emigrating to the United States, and later became a computer programmer.
In 1977, he purchased a seat on the American Stock Exchange and played a role in developing the first electronic trading platform for securities. Forbes‘s 2023 list of The World’s Billionaires estimated his net worth at US$25.3 billion, making him the 57th richest man in the world.
5. Jim Simons: Net Worth $30.7 Billion
James Harris Simons born on 25th April 1938, is an American hedge fund manager, investor, mathematician, and philanthropist. He is the founder of Renaissance Technologies, a quantitative hedge fund based in East Setauket, New York. He and his fund are known to be quantitative investors, using mathematical models and algorithms to make investment gains from market inefficiencies.
Due to the long-term aggregate investment returns of Renaissance and its Medallion Fund, Simons is described as the “greatest investor on Wall Street”, and more specifically “the most successful hedge fund manager of all time”. As reported by Bloomberg Billionaires Index in 2023, Simons’s net worth is estimated to be $29.4 billion, making him the 52nd-richest person in the world.