After Facebook's IPO, Zuck Is Richer Than The Google Guys and Amazon's Bezos

Friday’s Facebook IPO made a handful of Silicon Valley power players a whole lot richer, but none more so than the social network’s founder, Mark Zuckerberg.

At close of market, Zuckerberg’s shares in the company he created as a Harvard undergrad in 2004 were worth over $19 billion, making the 28-year-old the third richest person in American tech, behind onEven if Facebook’ share price remains steady at around $38 — its price when it started trading on NASDAQ at 11am, and at the market’s 4pm close — Zuck could leapfrog his fellow internet billionaires including Google founders Sergey Brin and Larry Page and Amazon CEO Jeff Bezos on the next Forbes 400.

When we published our World’s Billionaires list in March, the Facebook founder’s net worth was $17.5 billion. With his shares in Facebook worth over $19 billion as of today, Zuckerberg has an edge over Bezos ($18.4 billion in March) and beats out Brin and Page ($18.7 billion apiece at the Forbes Billionaires list).

In fact, while today’s been a huge one for Zuck, the three older tech titans have seen a dip in their fortunes. Forbes recently started tracking daily gains and losses in the major public holdings of a select group of billionaires. As the market closed on Friday, Sergey Brin and Larry Page had lost well over $1 billion between them due to a 3.71% dip in Google’s stock. Amazon’s Bezos fared only slightly better, losing $400 million off a 2% dip in the online retail giant’s stock.

Of course, these peaks and troughs in the fortunes of the world’s richest people are hardly uncommon, and these three are likely to see their net worths rebound in the coming days. We’ll have to keep an eye on the markets to see if the Google billionaires or Bezos outdo Zuck on the next Forbes 400 list.

Zuckerberg and his fellow Facebook billionaire Dustin Moskovitz will be on our Real-Time tracker as of Monday, so you’ll be able to follow the ups and downs of their fortunes minute by minute (well, every 5 minutes, if you’re counting) from next week onwards.ly Bill Gates and Larry Ellison.