Alvin Jiang

Gary Keegan is Systematic Equities Derivatives Business Controls Manager at Citadel Securities, based in London, a role he has held since August 2021. In October 2025 he also took on the role of Head of European Systematic Crypto Controls at the firm.

Prior to joining Citadel Securities, Keegan spent approximately ten years at Morgan Stanley in London. He served as Vice President, Electronic Trading Risk Management from February 2017 to July 2021, with responsibility for managing limit and control infrastructure across principal order flow, hosting the Algorithmic Trading Governance Forum, and implementing e-trading policies and governance structures. Before that he held the position of Electronic Trading Risk Manager from April 2014 to February 2017, and Director, Tax Risk Advisory from August 2011 to April 2014, where he served as project manager for the implementation of the Italian Financial Transaction Tax on derivatives and as subject matter expert for its equity implementation. Earlier in his career he worked as an Associate in Tax Operations at Goldman Sachs from May 2010 to August 2011, and as an Associate at Macquarie Group from November 2007 to May 2010. Keegan attended University College Dublin from 2000 to 2004 and UCD Michael Smurfit Graduate Business School in 2004. He obtained the Irish Registered Representatives Programme certification in January 2006 from University College Dublin and the Level III Securities and Regulation certification in June 2021 from the Chartered Institute for Securities and Investment.