March 24 (Bloomberg) -- IMS Health Holdings Inc., the health-care focused information-technology company taken private four years ago, seeks to raise as much as $1.37 billion in its initial public offering, valuing itself at almost $7 billion.

IMS and existing shareholders are offering 65 million shares for $18 to $21 each, according to a regulatory filing today. Including debt, the company would be valued at $10.6 billion based on the top of the marketed price range, more than double the $5.2 billion that sponsors TPG Capital, Canada Pension Plan Investment Board and Leonard Green & Partners LP spent to acquire the company in February 2010.

Based on the price range, IMS’s offering would be the second-largest this year in the U.S., after subprime auto lender Santander Consumer USA Holdings Inc., which raised $2.1 billion in January. IMS is going public as Castlight Health Inc., the health-care software startup, surged 149 percent in its debut this month, and Everyday Health Inc., a digital-health platform, is slated to price shares this week.