Marilyn Simons & family vs Elon Musk
Real-time net worth, career, and company comparison — updated June 2026.
Wealth at a Glance
Net worth gap: $775.1B — equivalent to 96% of Elon's total wealth.
Tale of the Tape
Career Highlights
Marilyn Simons & family
- 1994Co-founded the Simons FoundationEstablished the foundation with her husband, Jim Simons, to support research in mathematics and basic sciences.
- 2008Joined the Cold Spring Harbor Laboratory Board of TrusteesBecame a member of the board of trustees for the Cold Spring Harbor Laboratory.
- 2014Founded the Stony Brook Women's Leadership CouncilEstablished a mentoring program for undergraduate women at Stony Brook University.
- 2019Chair of the Board of Trustees of the Cold Spring Harbor LaboratoryAssumed the role of chair of the board.
- 2024WidowedHer husband, Jim Simons, passed away.
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 | Marilyn | Elon | Leader |
|---|---|---|---|
| 2022 | $32B | $146B | Elon |
| 2023 | $32.5B | $235.5B | Elon |
| 2024 | $32.5B | $839.6B | Elon |
| 2025 | $32.5B | $839B | Elon |
| 2026 | $32.549B | $807.656B | Elon |
The Verdict: Elon Musk vs Marilyn Simons & family
As of June 2026, Elon Musk leads this comparison with a net worth of $807.656B, placing at #1 in the global rankings. Marilyn Simons & family follows at $32.549B — a gap of $775.1B.
The two leaders come from distinct industries — Finance & Investments for Marilyn Simons & family 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.
Marilyn Simons & family is 75 years old versus 54 for Elon Musk, a difference of 21 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