He and his DoorDash cofounder Andy Fang rejoin the billionaire ranks in 2024 after a tough 2022, when the company’s big net losses sent its stock price tanking. DoorDash began 2023 with sizable layoffs, then managed to increase its revenue 31%, to $8.6 billion, and shrink its net loss by 59%, to $558 million, from 2022. It was enough to boost shareholders’ confidence: DoorDash stock is up 127% year over year. Tang heads the company’s robotics and automation arm, DoorDash Labs.