BlackBerry CEO: John Chen Dec. 31, 2013: $7.44 Dec. 31, 2014: $10.98 Change: +47.58% As recently as 18 months ago BlackBerry appeared to be in free-fall and might not survive. While the mobile device company's survival is by no means assured, it's a testament to the efforts of Chen & Co. how much things there have turned around. The company has made some savvy moves this year, including leveraging key technology assets such as its BBM secure messaging service and BlackBerry Enterprise Server device management platform, forming strategic alliances with Foxconn and Samsung, investing in a medical IT cloud services provider, and launching the BlackBerry Passport and Classic smartphones. For the nine months ended Nov. 29, BlackBerry reported revenue of $2.68 billion, down 54 percent from the first three quarters of the previous fiscal year. But the company's net loss for that period narrowed to $332 million from nearly $5.5 billion.