John Yonker

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John Yonker
Occupation Chief Executive Officer
Employer Simplitium
LinkedIn Profile

John Yonker is CEO of Simplitium, a Cinnober subsidiary specializing in transparency services to the finance industry. He was promoted to that role from COO in August of 2018, taking over from Per-Anders Häll-Bedman, who served as Interim CEO starting that May. [1]


Before joining Simplitium in 2016, Yonker worked in equities technology. He did a 9 year stint at Credit Suisse, where he progressed to regional management positions for European and Asia Equities IT trading and execution. He then spent four years at Macquarie in Hong Kong as regional Asia IT operations manager.


Yonker earned an MBA at HEC Paris in 2016. Upon graduation, he joined Simplitium to develop the company's insurance service and thereafter filled the role of COO.


  1. Cinnober Strengthens management team with three senior appointments.