Facebook Chief Operating Officer Sheryl Sandberg, who turned 47 on Sunday, was named by Forbes as the most powerful woman in technology for five consecutive years from 2012 to 2016. 
•    Sandberg was also one of the youngest female billionaires in the world in 2014, and currently has an estimated net worth of $1.42 billion.
•    Sheryl Kara Sandberg is an American technology executive, activist, and author. 
•    She is the Chief Operating Officer of Facebook and founder of Leanin.org. 
•    In June 2012, she was elected to the board of directors by the existing board members, becoming the first woman to serve on Facebook's board. 
•    Before she joined Facebook as its COO, Sandberg was Vice President of Global Online Sales and Operations at Google and was involved in launching Google's philanthropic arm Google.org. 
•    Before Google, Sandberg served as chief of staff for United States Secretary of the Treasury Lawrence Summers.
 

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