Facebook founder Mark Zuckerberg earned $3.3bn (£1.9bn) on the sale of share options in 2013, a new regulatory filing has revealed.
Mr Zuckerberg has now exhausted his supply of stock options as a result of Facebook's public offering.
He was given 60 million shares to help him with his tax bill.
His base salary for 2013 fell to $1, like other tech leaders such as Google's Larry Page and former Apple boss Steve Jobs.
However, his total compensation for the year was $653,165, down from $1.99m in 2012.
Facebook said the majority of that was to pay for flights on private jets, which are seen as necessary for security reasons.
Read more