I think that was the entire point the GP was trying to make. The founders were doctors that decided to start a side hustle, and then one day, boom, they got a huge payout and suddenly stopped "working" and became private investors. (And meanwhile, their employees didn't get all that much out of that "boom".)
Yeah, this. The doctors sold the company for an undisclosed amount and the employees were left to reapply for their new jobs at the new company while they quit and walked away with enough money to suddenly become private investors.
