Ryerson Holding Corp., a Chicago-based metals processor, has filed for a $350 million IPO. It plans to trade on the NYSE under ticker symbol RYI. Platinum Equity took Ryerson private in October 2007 for approximately $2 billion.
In its S-1 filing, Ryerson says its has reduced its annual costs by around $280 million since the buyout, of which it believes $180 million in permanent. www.ryerson.com