Mark Zuckerberg, co-founder of Facebook, has come very close to crossing the wealth of Warren Buffett who is the world’s third-richest person. Zuckerberg, 34, who is much younger than Berkshire Hathaway Chairman, has a net worth of $81.6 billion, which has jumped $8.8 billion this year, despite the fact that stock of the company slid by 18 per cent following issues relating to data-sharing privacy. Also Read - WhatsApp Fact Check: Beware! This Fake Message Is Getting Viral On Social Media

It touched the low of $152.22 on March 27 closing at $202 on Wednesday, inching towards closing the gap with Warren Buffett, according to the Bloomberg Billionaires Index. Also Read - Facebook Data Leak: CBI Files Case Against Cambridge Analytica

The Bloomberg index ranks the 500 richest people in the world and is revised every day after the close of each trading day in New York. Also Read - WhatsApp Policy Row: It's Voluntary, Use Some Other App if Not Acceptable, Says Delhi High Court

Zuckerberg has promised to give away 99 percent of his Facebook stock to charity. He had announced that some of his Facebook shares be given away to the philanthropic organization Chan Zuckerberg Initiative, which he founded with his wife in 2015. The organisation focuses on personalized learning, connecting people, curing disease and building strong communities.

On the back of the recovery in the stock of Facebook, other people associated with the company have gained, too, including Chief Operating Officer Sheryl Sandberg. She has now shares worth $1.8 billion, and Chief Technology Officer Michael Schroepfer worth is valued at $225 million.

Zuckerberg, 34, is behind the founder of Jeff Bezos, the world’s richest person. He has the net-worth of $144.8 billion. Microsoft Corp. co-founder Bill Gates has the worth of $92.8 billion.

Warren Buffett, 87, has come down in ranking owing to charitable activities. He has given away about 290 million Berkshire Hathaway Class B shares to charities. He has also donated to Gates’s foundation.