With Facebook's huge run-up Thursday, Zuckerberg's wealth has shot up by more than $3 billion to $29.7 billion, according to Wealth-X. That's up from a net worth of $20 billion that he hit at Facebook's IPO in 2012. And his net worth has nearly tripled since those dark days of Facebook's post-IPO depression, when Zuckerberg was down to his last $10 billion.
Sure there are plenty of people who are richer than Zuckerberg, including the Google guys who are both worth more than $30 billion. And Bill Gates and Larry Ellison are still the overlords of tech wealth, with $75 billion and $42 billion respectively, according to Bloomberg's Billionaires Index.