The airline was acquired by UAL Corporation, the parent company of United Airlines, in an all-stock transaction on October 1, 2010. Continental's shareholders received 1.05 per share in United stock for each Continental share they owned. Upon completion of the acquisition, UAL Corporation changed their name to United Continental Holdings. During the integration period, each airline ran a separate operation under the direction of a combined leadership team, based in Chicago. The integration was completed on March 3, 2012. Although the merged airline retained the United name, it uses Continental's operating certificate and livery. On June 27, 2019, United changed its parent company name from United Continental Holdings to United Airlines Holdings.