Ortho Clinical Diagnostics has revealed plans to sell 70 million shares for between $20 and $23 apiece in its upcoming IPO on the Nasdaq, with a midpoint pricing set to raise about $1.5 billion for the New Jersey-based company. Ortho Clinical is an in vitro diagnostics company that makes products and equipment for medical testing. The Carlyle Group acquired the company from Johnson & Johnson in 2014.