1. JEFF BEZOS ($189.4 billion): Bezos is an internet entrepreneur, industrialist, media proprietor, and investor. Best known as the founder, CEO, and president of Amazon. For the first time in US history, the top 12 US billionaires clocked up a combined wealth of over $1 trillion. The moment came on August 13, when these 12 held a combined $1.015 trillion.
Reuters