On January 6th, Ameritrade Inc. signed a 7-year lease for all remaining space at 6940 Columbia Gateway Drive. The 42,603 square feet is comprised of most of the 2nd floor and the entire 3rd floor. The online-brokerage giant plans to move-in by late March. The class-A office property was built in 1999 and is apart of a 600-acre business park. The 108,000-square-foot building is located right near Route 175 and I-95 in the Columbia South submarket. Cathy Ward of Corporate Office Properties Trust represented the landlord in-house, as well as the tenant.