RANDAL KIRK

Shares of his biotech firm Intrexon, which lost $341 million in 2018, are down 58% in the past year. Moon shots are costly. Intrexon, which developed a way to keep apples from browning, is working to create similar technology for romaine lettuce. It is also creating a modified species of mosquito that could reduce the spread of malaria. RJ sold greeting cards door-to-door when he was 9 years old, the same age as in the above photo with his younger brother; he

claims he had an 85% close rate.