The proposed transaction, which is expected to close around mid-year, has an enterprise value of $808 million. U.S. Xpress investors would receive $6.15 per share in cash, which is more than four times the price at which the Chattanooga-based company's shares closed on March 20. U.S. Xpress has struggled in recent quarters with a combination of leverage, high insurance claims, and lagging volumes. Last fall, the carrier launched a restructuring plan aimed at cutting $25 million in costs per year.