Mark Zuckerberg Net Worth in 2011
In 2011, Mark Zuckerberg net worth was estimated at roughly $13 billion to $14 billion, based on the value of his Facebook shares and private valuations ahead of the company's planned IPO.
How the Fortune Was Calculated
His wealth came almost entirely from his roughly 28 percent stake in Facebook, which was valued during private secondary-market trades and early-stage funding rounds. Analysts used these private share prices and ownership data to derive the net worth figure for 2011.
Context and Early Comparisons
At that time, Zuckerberg was one of the youngest billionaires in the technology sector, with his net worth tied closely to Facebook's growth and user metrics. For background on Facebook's early financials, see the company's S-1 filing here.
