FacultyFaculty/Author Profile

Jonathan Bach

Cooley LLP

New York, NY, USA

Jonathan Bach is Partner In Charge of the firm's New York office and serves as the firm's East Coast Litigation Practice Group Leader. He specializes in securities litigation, internal corporate investigations, white-collar criminal defense and complex commercial litigation.

Mr. Bach has successfully represented defendants in numerous federal and state criminal trials and has represented individuals and entities in a range of high profile criminal and regulatory investigations. 

In addition, he has handled a wide range of complex civil matters and arbitrations, for both domestic and foreign clients, in disputes concerning securities fraud, health care fraud, professional malpractice, antitrust claims, intellectual property rights and patents, business torts, and contract and licensing issues.

Mr. Bach is a fellow of the American College of Trial Lawyers. He has been recognized in Chambers USA, Euromoney's Guide to the World's Leading White Collar Crime Lawyers, Legal 500, Best Lawyers in America, Benchmark Litigation, and New York Super Lawyers.

Some recent representations include:

  • The representation of an NYSE specialist in a criminal securities fraud trial and related SEC and NYSE enforcement proceedings. Obtained acquittal on three of four counts after jury trial in the Southern District of New York, and Second Circuit reversal of conviction on one remaining count. 
  • The representation of a major private international bank in civil matter involving alleged violations of foreign banking laws. Obtained dismissal of the complaint. 
  • The representation of a major financial institution and its officers in DOJ and SEC investigations relating to the collapse of financial markets in mortgage-backed securities.
  • The representation of the audit committee of the board of directors of a technology company in conducting an internal investigation in connection of the company's restatement of its financials.
  • The representation of a former senior partner at an international law firm in high profile securities fraud trials in the Southern District of New York, SEC proceedings and related civil lawsuits. 
  • The representation of a senior officer of a major stock exchange in an SEC investigation of the exchange's compliance function.
  • The representation of the New York Council of Defense Lawyers before the Senate Judiciary Committee to address reform of the asset forfeiture laws.
  • The representation of public companies and their officers in securities class action litigation.
  • The representation of an investment banker in a high profile obstruction of justice case in the Southern District of New York and related NASD enforcement proceedings.
  • The representation of the former Vice President of Finance of Adelphia Communications Company in connection with a grand jury investigation of securities fraud and bank fraud, related SEC investigation and trial proceedings.
  • The representation of a leading provider of hedge fund consulting services in a dispute concerning alleged theft of trade secrets. 
  • The representation of a high-profile internet company in litigation seeking disclosure of the company's finances.
  • The representation of life science and medical device companies in licensing and contract disputes.
  • The representation of an overseas entity in the first prosecution of an internet gaming company in the United States.
  • The representation of a former CEO of a charitable organization charged with wire fraud and money laundering in the District of Minnesota.
  • The representation of an individual charged with violating the Foreign Corrupt Practices Act by allegedly siphoning $87 million in proceeds from sales of oil rights in the Republic of Kazakhstan.

In April 2015, Mr. Bach testified before the Senate Judiciary Committee to address aspects of the asset forfeiture laws and their effect on the criminal justice system.  Mr. Bach had previously submitted an amicus brief on similar issues, which was discussed by the United States Supreme Court in Kaley v. United States, 134 S. Ct. 1090 (2014).  

In his pro bono practice, Mr. Bach obtained the acquittal of defendant David Lemus in a high profile murder trial that has been the subject of extensive media coverage and two television documentaries following numerous law enforcement investigations. The New York Times called the case "one of the more notorious and vexing trials of the last 20 years in New York." As part of his defense, Mr. Bach succeeded not only in clearing his own client, but in identifying and obtaining a witness-stand confession from the actual murderer.

Mr. Bach has served on the Board of Directors of the New York Council of Defense Lawyers and on the adjunct faculty of Columbia Law School, where he has taught seminars on federal criminal practice. Earlier in his career, Mr. Bach served as a federal public defender in the Southern District of New York, where the majority of his trials resulted in verdicts of acquittal or hung juries.

Mr. Bach received a JD from Yale Law School in 1990, where he was a senior editor of the Yale Law Journal. He received a BA, summa cum laude, from Yale University in 1984, and was a member of Phi Beta Kappa. He clerked for the Honorable Louis H. Pollak, U.S. District Court for the Eastern District of Pennsylvania.

Mr. Bach is admitted to practice in New York and the District of Columbia.


  • Yale Law School
    JD, 1990
  • Yale University
    BA, 1984, summa cum laude, Phi Beta Kappa

Court Admissions

  • Supreme Court of the United States
  • U.S. Court of Appeals, Second Circuit
  • U.S. District Court, Eastern District of New York
  • U.S. District Court, Southern District of New York

Bar Admissions

  • District of Columbia
  • New York


  • American College of Trial Lawyers
  • New York Council of Defense Lawyers

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