Jaap Rademaker, v.p. in the structured transactions group at JPMorgan in London, has left the firm. Rademaker reported to Bertrand Des Pallieres, head of rates marketing and structuring at JPMorgan in London. Rademaker joined the firm a year ago in August (DW, 8/15) from Deutsche Bank in London, where he had a similar position. It could not be determined whether Rademaker had gone to a competitor. Des Pallieres referred calls to Eileen Darko, spokeswoman in London, who had no comment. Rademaker could not be reached.