The Information does a good job of pointing out who the winners are today. Even Jeff Bezos will make $400m off a $3m early stage personal investment he made in Uber.
Uber is expected to go public next week at a valuation of more than $80 billion. The biggest winners include some investors well known to have scored big gains, such as Benchmark, which stands to make around $7.9 billion on a $30 million investment. Menlo Ventures invested around $67 million for a stake now worth around $3 billion, including an earlier sale of shares. Then there are early investors whose winnings aren’t as well known. They include Founder Collective, which turned its $100,000 investment in 2010 into $300 million, and First Round Capital, whose $1.5 million investment from 2010-11 became a stake worth $2.6 billion.
https://www.theinformation.com/articles/ubers-biggest-ipo-winners