When Facebook's stock closed on a record high, its second in command, Sheryl Sandberg, became a billionaire.
Sandberg's 12.3 million Facebook shares are worth close to $700 million, while she also has an additional $300 million in selling shares and another 4.7 million shares that are vesting -- all which likely moves her past the the $1 billion mark, according to Bloomberg News.
Sandberg, Facebook's chief operating officer, is 44 and is one of the youngest female billionaires in the world. “Did she do a billion dollars-worth of work? I don’t know,” David Kirkpatrick, author of “The Facebook Effect,” told Bloomberg News. “She had the good fortune to land in the right place where her talents could really be applauded.”
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Sandberg also sits on the boards of Starbucks and Walt Disney and recently wrote a book, "Lean In" about women in business. However, at $1 billion, Sandberg's wealth is significantly less than Facebook found Mark Zuckerberg's, according to CNN. Zuckerberg's wealth is estimated at $25 billion -- and he's still in his 20s.