Mergers and Acquisitions

Yahoo CEO Marissa Mayer is facing her biggest business decision since she left Google two-and-a-half years ago to lead its struggling rival: how to manage Yahoo's most valuable asset, a 15 percent stake in Chinese Internet star Alibaba Group worth nearly $37 billion.

Nokia is back in the fray.

Yahoo is buying digital video advertising service BrightRoll for $640 million in an effort to boost its revenue after years of little or no growth.

Hewlett-Packard Co. is splitting itself into two companies, one focused on its personal computer and printing business and another on technology services, such as data storage, servers and software, as it aims to drive stronger profitability.

The chairman of Lenovo Group says the company has received U.S. government approval to complete its acquisition of IBM Corp.'s low-end server business and plans to use it to grow faster outside its personal computer business.

An activist investor is urging Yahoo to buy rival AOL to help the long-struggling Internet companies to become more competitive in a digital advertising market currently dominated by Google and Facebook.

RF Micro Devices revealed an agreement to acquire rival chip maker TriQuint  for $1.6 billion in an all-stock transaction. 

Shares of Juniper Networks enjoyed a 3% bounce following a report indicating Nokia is considering making a play for the U.S. networking-gear maker.

Facebook inked a deal late Wednesday to buy mobile messaging company WhatsApp for about $19 billion in cash and stock.

Adding to recent acquisitions of companies that manufacture scary-looking robots and automate homes, Google has agreed to buy artificial intelligence company DeepMind.

Lenovo said it would buy IBM's low-end server business for $2.3 billion in the biggest-ever IT acquisition by a China-based firm. Stocks Sink on Gloomy Data | Herbalife Plummets as Senator Calls for Probe

IBM is thinking of selling off its low-end server business, and Dell may be among potential bidders, the WSJ reports.

Oracle announced a $1.5 billion acquisition of cloud-based marketing software maker Responsys. 

The $1.65 billion acquisition of Digital Insight by NCR highlights the growing importance of online and mobile banking applications. 

China's largest technology outsourcing firm Pactera Technology agreed to be taken private by a consortium led by Blackstone Group for $7.30 a share in cash.

Everyone from Google and Cisco to Intel is reportedly talking to slumping BlackBerry about a possible deal.

The combined company will have a new name, dual headquarters, and a shared leadership team.

Dell shareholders approved a take-private deal by founder Michael Dell and Silver Lake Partners, ending a months long battle over the company's fate. Wall Street Yawns | CPU Snafu Drives Initial Claims to '06 Low | Hilton to IPO

The cash-and-stock deal gives Synnex control of IBM's business process outsourcing services division.

The billionaire investor said he will no longer pursue a plan to halt a takeover of Dell launched by founder Michael Dell.