Billionaires with PhDs
https://www.forbes.com/sites/chasewithorn/2023/04/29/these-are-the-richest-americans-with-a-phd/
FORBES:
Here are the most common Ph.D.s held by American billionaires:
1. Engineering
9 billionaires | Notable student: Romesh T. Wadhwani ($5.1 billion), founder of software firm Symphony Technology Group. Electrical engineering, Carnegie Mellon ‘72.
2 (tie). Computer science
6 billionaires | Notable student: Benoit Dageville ($1 billion), cofounder of cloud-based database company Snowflake. Computer science, Paris IV - Jussieu ‘95.
2 (tie). Biology
6 billionaires | Notable student: Patrick Hanrahan ($1.5 billion), Stanford professor and cofounder of software firm Tableau. Biophysics, University of Wisconsin-Madison ‘85.
4. Chemistry
5 billionaires | Notable student: Frank Laukien ($2.7 billion), CEO of scientific instruments maker Bruker Corp. Chemical physics, Harvard ‘88.
5. Physics