Question: how did the richest person in the world make his money?
Answer: Bezos owns about 16.3% of the 24-year-old company, making it the biggest source of his wealth. A Securities and Exchange Commission (SEC) filing in November 2017 showed that the CEO sold 1 million shares of his company for $1.1 billion. The last filing, dated August 2018, shows Bezos owning 78.8 million shares.