LONDON, Sept 15 (Reuters) - Kristine Braden, CEO of Citigroup's main operations in continental Europe, is leaving the firm after 25 years as part of a wider organisational change announced by the U.S. bank earlier this week, according to an internal memo seen by Reuters. Braden was CEO of Citibank Europe and previously held a number of senior roles, including leading the Citigroup Global Markets Europe AG unit. The Wall Street firm this week announced a broad reorganization including stripping out a layer of management and cutting jobs to give CEO Jane Fraser more direct control as she seeks to simplify the structure and give a boost to the stock. Following the announcement of the reorganization, Citi managers are already convening discussions with employees about potential layoffs, which will most likely affect support staff in compliance and risk management, a source familiar with the situation told Reuters on Thursday. Reporting by Anousha Sakoui and Andres Gonzalez Editing by Elisa Martinuzzi, Dhara Ranasinghe and Mark PotterOur Standards: The Thomson Reuters Trust Principles.

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Persons: Kristine Braden, Braden, Braden couldn't, Jane Fraser, Anousha Sakoui, Andres Gonzalez, Elisa Martinuzzi, Dhara Ranasinghe, Mark Potter Organizations: Reuters, Citibank Europe, Citigroup Global, Citi, Thomson Locations: Europe, U.S