Leonard Schleifer vs Elon Musk
Real-time net worth, career, and company comparison — updated June 2026.
Wealth at a Glance
Net worth gap: $805.2B — equivalent to 100% of Elon's total wealth.
Tale of the Tape
Career Highlights
Leonard Schleifer
- 1988Founded Regeneron PharmaceuticalsCo-founded Regeneron Pharmaceuticals with George Yancopoulos, which has become a leading biotechnology company.
- 1991Regeneron went publicTook Regeneron public on the NASDAQ.
- 2011Eylea ApprovalOversaw the approval of Eylea, a successful treatment for age-related macular degeneration, which became a blockbuster drug.
- 2020COVID-19 ResponseLed the development of an antibody cocktail for the treatment and prevention of COVID-19.
- 2025Biotechnology Heritage AwardReceived the Biotechnology Heritage Award from the Science History Institute and Biotechnology Innovation Organization.
Elon Musk
- 1995Co-founded Zip2Co-founded Zip2, an online city guide for newspapers.
- 1999Co-founded X.comCo-founded X.com, which later became PayPal.
- 2002Founded SpaceXFounded Space Exploration Technologies Corp. (SpaceX).
- 2004Became Chairman of TeslaLed the first funding round for Tesla and became its Chairman.
- 2008Became CEO of TeslaBecame CEO of Tesla Motors.
Net Worth History
| Year | Leonard | Elon | Leader |
|---|---|---|---|
| 2020 | $2.5B | — | — |
| 2022 | — | $146B | — |
| 2023 | — | $235.5B | — |
| 2024 | $2.9B | $839.6B | Elon |
| 2025 | $2.8B | $839B | Elon |
| 2026 | $2.463B | $807.656B | Elon |
The Verdict: Elon Musk vs Leonard Schleifer
As of June 2026, Elon Musk leads this comparison with a net worth of $807.656B, placing at #1 in the global rankings. Leonard Schleifer follows at $2.463B — a gap of $805.2B.
The two leaders come from distinct industries — Healthcare for Leonard Schleifer and Technology for Elon Musk. Comparing them is therefore a comparison of different underlying asset types, growth rates, and risk profiles rather than a simple head-to-head within the same market.
Leonard Schleifer is 73 years old versus 54 for Elon Musk, a difference of 19 years. Age context matters in wealth comparisons: a younger billionaire at the same net worth has had less time to accumulate — and in many cases represents a higher compound annual growth rate on their wealth.
Net worth figures are estimates calculated from public shareholding disclosures, stock price data, and reported asset values. See our full methodology.
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Net worth estimates updated daily from public financial disclosures. Methodology · Report an error