GO
Loading...

Facebook CEO Mark Zuckerberg turns 30

Mark Zuckerberg, one of the richest college dropouts, turns 30 years old Wednesday, hitting a milestone in a not-so-spotless timeline.

The Facebook CEO dropped out of Harvard as a sophomore and started up the social network exclusively for college students in 2004.

And just a few years after the site was opened up to the general public in 2006, the 24-year-old CEO landed on the Forbes 400 list of the richest people in America. He ranked No. 321 in 2008, with an estimated net worth of $1.5 billion. At that time, Facebook had about 100 million active users.

Facebook CEO Mark Zuckerberg delivers the opening kenote at the Facebook f8 conference on April 30, 2014 in San Francisco, Calif.
Getty Images
Facebook CEO Mark Zuckerberg delivers the opening kenote at the Facebook f8 conference on April 30, 2014 in San Francisco, Calif.

Read More Facebook unveils new features with mobile focus

Within another year, the number of Facebook users tripled, and Zuckerberg's net worth hit $2 billion.

By 2010, after an investment by private equity firm Elevation Partners valued Facebook at $23 billion, Zuckerberg jumped to No. 35 on the Forbes 400 list, with a net worth of $6.9 billion.

Read More Mark Zuckerberg's Facebook leads social revolution

In 2011, Zuckerberg was worth an estimated $17.5 billion, but his fortunes took a turn for the worse in 2012, the same year Facebook went public.

Days after Facebook's IPO on May 18, 2012, shares tumbled on fears that the firm's shares had too lofty a valuation, shrinking Zuckerberg's net worth to just $9.4 billion.

Read More Facebook launches mobile ad network to vie with Google, Twitter

But by last year, as the number of Facebook mobile users and mobile ad revenue continued to grow, Zuckerberg's net worth grew more than it lost the year before.

He was worth $19 billion, according to the latest Forbes 400 list published last fall. And his fortune continues to grow. Zuckerberg's net worth is currently estimated at around $26.6 billion.

—By CNBC's Althea Chang.

Symbol
Price
 
Change
%Change
FB
---

Squawk Alley