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Kenneth Breen

Partner, Litigation Department
Paul Hastings

Kenneth Breen

Ken Breen is a partner in the Litigation Department of Paul Hastings and co-coordinator of the firm's Securities Regulatory Enforcement and White Collar Criminal Defense practice.  Mr. Breen represents corporations and individuals in high-stakes regulatory enforcement and white collar criminal investigations and related proceedings. Mr. Breen also conducts internal investigations for companies and their boards and committees, and he handles civil litigation matters related to government and internal investigations.
Mr. Breen was cited in 2010, 2011 and 2012 as a leading white collar and government investigations lawyer in New York by Chambers USA, a guide to the leading lawyers in the United States. Chambers notes that Mr. Breen impresses clients as "a dedicated, tireless and efficient counselor who can quickly and effectively understand legal issues and the business needs of his clients." 

He has handled a wide array of regulatory enforcement and white collar criminal matters, including those involving allegations of insider trading, corporate and accounting fraud, securities fraud, health care fraud, antitrust violations, tax fraud, Foreign Corrupt Practices Act violations and public corruption.

He regularly represents clients in court and before the United States Department of Justice ("DOJ"), the Securities and Exchange Commission ("SEC"), the Commodity Futures Trading Commission ("CFTC"), the New York State Attorney General's Office ("NYAG"), FINRA and other self-regulatory organizations and federal and state agencies.
Prior to private practice, Mr. Breen served as a federal prosecutor in the U.S. Attorney's Office for the Eastern District of New York, where he was Deputy Chief of the Business and Securities Fraud Section, and prior to that, in the U.S. Department of Justice Tax Division.

As a defense attorney and federal prosecutor, Mr. Breen has tried more than 40 cases to verdict, and he has argued on multiple occasions in the U.S. Court of Appeals for the Second Circuit.