(ShareCast News) - Trading firm DRW signed a lease to move into the Leadenhall Building, its owner British Land said.The company added that the building known as the cheese grater is now 90% let or under offer.DRW's London operations will join Brit Insurance, Spanish banking group Banco Sabadell, Kames Capital, shipping broker Affinity and IT provider Ipsoft in the building, the real estate company announced.British Land head of offices Tim Roberts said there has been strong demand for upper floors of the building since completion."We look forward to welcoming DRW, and our other confirmed occupiers to the building over the coming months," he said in a statement.