David Siegel
Hedge funds · Scarsdale, New York
Net worth
$9.3B
Today
−$110−0.00%Past month
+$472K+0.01%As of Nov 11, 2026, 1:50 PM EST
David Siegel is the cofounder of Two Sigma, a quantitative investing powerhouse that manages more than $75 billion. Two Sigma's largest business is a data-driven hedge fund that absorbs large amounts of information to predict the prices of securities. Siegel stepped away from day-to-day management of Two Sigma in September 2024, transitioning from co-CEO to co-chairman of the firm. Born in the Bronx, Siegel is a computer fanatic who got a computer science Ph.D. from MIT and worked at hedge funds D.E. Shaw and Tudor Investments. Siegel's charitable foundation, Siegel Family Endowment, is focused on technology and society and supports programs such as Scratch, which introduces children to coding.
Net worth over time
Principal holdings
1 positions| Company | Industry | Share | Value |
|---|---|---|---|
Private holdings | Finance & Investments | 100.0% | $9.3B |
Also known for
- Before he started Two Sigma with John Overdeck, Siegel founded his own Internet startup.
- Siegel is a big supporter of open source AI and has founded the non-profit Open Athena to build scientific models.