Photos of Facebook founder and CEO Mark Zuckerberg through the years.
This photo provided by Facebook shows Facebook founder and chief executive Mark Zuckerberg and Priscilla Chan at their wedding ceremony in Palo Alto, Calif. (May 19, 2012)
Facebook's founder and billionaire Mark Zuckerberg, in sunglasses, and his girlfriend, Priscilla Chan, during their private trip to Ha Long Bay in the northeastern province of Quuang Ninh in Vietnam on Christmas Day. (Dec. 25, 2011)
With Facebook's stock trading at near $20, chief executive Mark Zuckerberg, 28, who controls a majority of the company's voting power, has now watched more than $9 billion evaporate from his net worth. (May 26, 2010)
Facebook chief executive Mark Zuckerberg smiles during a conference in San Francisco. (Sept. 22, 2011)
Facebook chief executive Mark Zuckerberg.