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NEW YORK (Reuters) – A federal appeals court on Friday said Facebook Inc officials including Chief Executive Mark Zuckerberg cannot be sued by shareholders who said the social media company concealed threats to its growth prospects before its May 2012 initial public offering.

By Euan Rocha and Alastair Sharp TORONTO (Reuters) – BlackBerry Ltd posted a surprise quarterly profit on Friday and said it is pushing to end a slide in its revenue in this fiscal year, sending the stock up as much as 5.1 percent. We're now turning our attention to revenue stabilization,” BlackBerry Chief Executive John Chen said on a conference call. Chen plans to grow BlackBerry's small but high-margin software division by moving more customers onto its products, including a system that allows companies and government agencies to manage multiple employee devices. The stock rose as high as $9.77, before easing to $9.59, up 3.1 percent on the Nasdaq, despite a much bigger-than-expected decline in fiscal fourth quarter revenue.

Shares of online data storage provider Box Inc rose as much as 77 percent in their market debut as investors bet on the company's ability to turn profitable in a highly competitive market, boding well for another big year for IPOs. Box's shares, which priced at $14, hit a high of $24.72 in morning trading on the New York Stock Exchange on Friday, valuing the company at nearly $3 billion. The stock's enthusiastic reception also underscored healthy investor appetite for technology stocks after the blockbuster debut of Chinese e-commerce giant Alibaba Group Holding Ltd in September. Box was founded in 2005 by University of Southern California dropout Aaron Levie, the chief executive, and his friend Dylan Smith, the chief financial officer.