ExcelleRx signed a lease for an additional 15,250 square feet in the Horizon Center Business Park Building at 2525 Horizon Lake Blvd. in Memphis. ExcelleRx already occupied 40,737 square feet of space in suite 101 in the Horizon Center Business Park Building. The new lease for 15,250 square feet, which allows ExcelleRx to now occupy suite 115, will take effect on October 1.