Park Sterling Bank, a recently formed commercial bank with three offices in Charlotte and Wilmington, NC, filed to raise up to $230 million in its upcoming initial public offering. The Charlotte, NC-based company, which commenced operations in 2006 and booked $4 million in sales last year, plans to list on the NASDAQ under the symbol PSTB. Keefe Bruyette Woods is the lead underwriter on the deal, which is expected to price during the week of August 9.