Mark Walker is a seasoned finance professional currently serving as a Program Execution Director at Citi since July 2025. Prior experience includes various managerial roles at J.P. Morgan from October 2010 to December 2014, where responsibilities spanned from EMEA Stock Borrow Loan Middle Office Manager to International Equity Settlements Supervisor, and included positions in trade support, billing, collateral management, custody income analysis, program management for global equities, and dividends processing. Mark holds a Bachelor of Science degree in Psychology and Criminology from Middlesex University, earned between 1995 and 1998.
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