In July, Arnault overtook Bill Gates to become the second-richest person in the world, Business Insider reported.
Arnault is now one of only six people to ever hold one of the top two spots on Forbes' billionaires list, according to the magazine. The others are Bezos, Gates, Buffett, Zara cofounder Amancio Ortega, and Mexican telecom magnate Carlos Slim Helu.