Rackspace Inc files for $400 million IPO

WASHINGTON, April 25 (Reuters) - Rackspace Inc, which delivers Web sites, Web-based IT systems, and computing as a service, on Friday filed to raise up to $400 million in an initial public offering of common stock.

Rackspace said in a filing with the U.S. Securities and Exchange Commission that Goldman Sachs, Credit Suisse, and Merrill Lynch were the lead underwriters for the IPO.

It did not reveal the expected terms of the offering but said it plans to list its stock on the New York Stock Exchange under the symbol "RAX". (Reporting by Karey Wutkowski)