DeMoulas Super Markets, Inc., under the trade name Market Basket, is a chain of 77 supermarkets in New Hampshire, Massachusetts, and Maine in the United States, with headquarters in Tewksbury, Massachusetts. From 1990 through late August 2014, the company was the center of a controversy over ownership and leadership, which culminated in protests receiving international media attention. On August 27, 2014, an agreement was reached between its feuding owners to sell the 50.5% stake of the company owned by the family of Arthur S. Demoulas to his cousin Arthur T. Demoulas for $1.5 billion.