GREENSBORO, N.C. — Tanger Factory Outlets Center Inc. (NYSE: SKT) has sold four non-core outlet malls for $130.5 million. The four centers are located in Nags Head, N.C.; Ocean City, Md.; Park City, Utah; and Williamsburg, Iowa. The four properties were 95.8 percent occupied at the time of the sale. Greensboro-based Tanger Outlets expects to use $128.7 million of the proceeds to pay off existing debt. Tanger operates 40 outlet malls across 20 states and Canada. The company is planning to build a mall in downtown Nashville. The buyer(s) was not disclosed. Tanger Outlets’ stock price opened at $20.64 per share Monday, down from $22.16 per share one year ago.