Zuckerberg loses US$3 billion BLOOMBERGMark Zuckerberg lost US$3 billion on Thursday, more than anyone else on Earth, after executives suggested Facebook Inc probably won’t be able to keep up with its explosive pace of growth much longer. The sobering comments came on a Wednesday evening earnings call even as the Menlo Park, California-based company reported third-quarter sales increased 56% to $7.01 billion. Zuckerberg is the world’s fifth richest person with a $52 billion fortune, according to the Bloomberg Billionaires Index.