American Assets Trust, a self-administered REIT with an initial portfolio of 20 retail, office, mixed-use and multifamily properties, filed on Monday with the SEC to raise up to $500 million in an initial public offering. The San Diego, CA-based company was founded to succeed the business of American Assets, Inc., which was founded in 1967. The REIT booked $196 million in sales last year and plans to list on the NYSE under the symbol AAT. BofA Merrill Lynch, Wells Fargo Securities and Morgan Stanley are the lead underwriters on the deal. Pricing terms and timing were not disclosed.

