Frank Langer, Macquarie's Frankfurt-based head of derivatives Europe, has left the bank, SRP has confirmed. His departure, which was due to personal reasons, has no impact on any of Macquarie's other German businesses, said a source close to the bank, adding that there are no plans to replace him. The management team of the Australian bank's German structured products business remains in place, reporting jointly to Todd Steinberg, global head of the structured products and equity derivatives b