Jordan Katzman and Alex Fenkell are now two of the youngest billionaires in the country.
Shares of the direct-to-consumer dental product they cofounded, SmileDirectClub, began trading on Nasdaq September 12. SmileDirectClub closed down 28% after its first day of trading, but its market cap of $6.4 billion made Katzman and Fenkell — who each own close to a quarter of the company's class B shares — billionaires.
SmileDirectClub sells invisible teeth aligners for $1,850, a fraction of the cost of traditional braces from an orthodontist, Business Insider previously reported.
A representative of SmileDirectClub did not immediately return Business Insider's request for comment on Katzman and Fenkell's personal relationship, current involvement in the business, and personal fortunes.
Keep reading to learn more about Jordan Katzman and Alex Fenkell.