A surfer without a degree is worth $16 billion after his biotech company's stock soared 1,100% in a year

• A surfer who never graduated from college has made billions in the biotech industry.
• Summit Therapeutics CEO Bob Duggan is worth about $16 billion after a 1,100% stock gain in 12 months.
• Duggan, 80, ranks 129th on the global rich list and is the 23rd biggest wealth gainer this year.

A surfer without a college degree has gone from baking cookies to building robots, minting billions in biotech, and ranking among the world's richest people.