Mark Zuckerberg is 29th richest person

Mark Zuckerberg, who is now worth $19.1 billion, has now become the 29th richest in the world after Facebook Inc. sold $421.2 million shares valued for $38 each on Thursday.

Zuckerberg, who first showed up on Forbes' billionaires list in 2008 with an estimated net worth of $1.5 billion, is now richer than Google co-founders Sergey Brin and Larry Page, Bloomberg reports.

However, he's not quite as wealthy as Microsoft founder Bill Gates, who is worth $60.4 billion, or Oracle's Larry Ellison, who is worth $34.2 billion, according to Bloomberg's Billionaires Index, LA Times reported.

For that matter, Zuckerberg is also worth less than Michael Bloomberg himself, who Forbes estimates is worth $22 billion.

Of course, Zuckerberg isn't the only person seeing a huge windfall from Facebook's $104.2-billion valuation.

According to Bloomberg, Dustin Moskovitz, who roomed with Zuckerberg at Harvard and was the company's first chief technology officer, is now worth $5.1 billion.

Eduardo Saverin, who has created headlines this week when it was revealed that he renounced his US citizenship, is now worth an estimated $2.7 billion.

Christopher Hughes, who recently bought theWashington, D.C.-based magazine the New Republic, may now be worth 836 million dollars.

Additionally, Facebook's Chief Operating Officer Sheryl Sandberg, 42, who owns 27 million shares — including 25 million in restricted stock units —is now a billionaire.

With a market value at the IPO of $104 billion, Facebook is bigger than Amazon ($98 billion) and Cisco ($89 billion), and more than twice the value of Ford Motor Co. ($38 billion). But it remains behind Google ($203 billion) and Apple ($495 billion).