This comprehensive Commentary examines the implications of the EU's Market Abuse Regulation, introduced following the 2008 financial crisis after gaps were identified in the existing regulatory framework. It explores whether and how the Regulation achieves its aims of preserving the integrity of financial markets by preventing insider dealing and market manipulation, providing a harmonised legal framework, and increasing legal certainty for all market participants. Key features include: in-depth contributions from leading scholars and practitioners in the field practical discussion of the interpretation and implementation of the Regulation, including pertinent national and European case law systematic article-by-article analysis of the Regulation, illuminating the purpose of each provision as well as providing relevant historical and legal context Scholars of EU financial and banking law, particularly those with an interest in market abuse and financial crime and corruption, will find this Commentary a valuable resource. It will also be of great practical benefit for practitioners and in-house counsel working for or with banks, investment firms and other financial institutions.