TomoTherapy Prices High

TomoTherapy Inc., a Madison, Wis.-based developer of cancer treatment systems that use on-board CT imaging and conformal radiation therapy, priced around 11.7 million common shares at $19 per share, for an IPO take of $222.3 million. It had originally planned to offer around 10.94 million shares at between $15 and $17 per share. It will trade on the Nasdaq under ticker symbol TTPY, while Merrill Lynch served as lead underwriter. The company has raised around $79 million in VC funding since 1999, from shareholders like Venture Investors (17.3% pre-IPO stake), Avalon Technology (12.9%), The Endeavors Group (12.6%), Open Prairie Ventures (6.1%), Ascension Health Ventures (5.5%) and the Wisconsin Alumni Research Foundation (5.3%).