Inland Western Retail Real Estate Trust, one of the largest shopping center REITs in the US with a portfolio of 272 properties, filed on Monday with the SEC to raise up to $350 million in an initial public offering. The Oak Brook, IL-based company, which was founded in 2003 and booked $655 million in sales for the 12 months ended September 30, 2010, plans to list on the NYSE under the symbol IWST. Citi, Deutsche Bank Securities, J.P. Morgan and KeyBanc Capital Markets are the lead underwriters on the deal, for which pricing terms and timing were not disclosed.