John Macpherson , former European head of listed derivatives at Citigroup , is now CEO of UK fintech firm BMLL Technologies . BMLL uses a machine - learning platform to provide deep data analytics on historical limit value - book trading to individual traders on individual trading days . Macpherson joined Citigroup from Nomura in April 2015 , but left two months later and has been employed as non - executive director and consultant until taking up his current position at hp . Macpherson takes over the role of CEO from hp ##mura .
John Macpherson, former European head of listed derivatives at Citigroup, is now CEO of UK fintech firm BMLL Technologies. BMLL uses a machine-learning platform to provide deep data analytics on historical limit order-book data to individual securities on individual trading days. Macpherson joined Citigroup from Nomura in April 2015, but left two months later and has been working as non-executive director and consultant until taking up his current role at BMLL. Macpherson takes over the role of CEO from Johannes Sulzberger.