Home > People > Renato Mariotti

Renato Mariotti


312 580 5056 direct

Renato is an accomplished trial attorney who focuses his practice on representing parties involved in commodity futures markets in CFTC and DOJ investigations and enforcement actions.

Renato defends trading firms and individuals in federal court, before the Commodity Futures Trading Commission, and before the CME Group Business Conduct Committee. In addition, he helps proprietary trading firms develop internal compliance programs that target disruptive trading practices.

Prior to joining Thompson Coburn, Renato was a federal prosecutor in the Securities and Commodities Fraud Section of the United States Attorney's Office. In that role, Renato was best known as the lead prosecutor in U.S. v. Coscia, the nation's first federal prosecution of a high-frequency trader for order entry and the first prosecution nationwide under the anti-spoofing provision of the Dodd-Frank Act. This landmark case captured national headlines and signaled a new era of enforcement in computer-aided trading. After securing a first-of-its-kind indictment, Renato successfully defended the constitutionality of the spoofing and commodity fraud statutes. After a lengthy trial, the jury returned a guilty verdict on all 12 counts after less than one hour of deliberation.

During his nine years at the U.S. Attorney's Office for the Northern District of Illinois, Renato tried more than a dozen criminal trials and prosecuted a wide array of white-collar crimes, including commodities and securities fraud, spoofing, cybercrime, bank fraud, investor fraud, health care fraud, mortgage fraud, tax evasion and Internet pharmaceutical sales. Renato has also briefed and argued numerous appeals before the United States Court of Appeals for the Second, Seventh, and Ninth Circuits.

Renato's national securities litigation practice extends beyond the commodity futures industry to cover a diverse group of clients facing many types of financial-related governmental inquiries, including accounting irregularities, directors and officer liability, whistleblower allegations, board governance and oversight and internal controls. Renato helps clients conduct internal investigations into allegations leveled by government agencies and whistleblowers. Finally, Renato helps firms develop and establish internal compliance programs.

Prior to becoming a federal prosecutor, Renato practiced antitrust and securities litigation at a large law firm. He was part of the trial team in the then-largest civil antitrust class action in U.S. history involving antitrust tying claims brought by a nationwide class of merchants seeking a purported $100 billion. That case settled for $3 billion in an agreement that was negotiated on the morning the litigation was to go to trial. He also represented a Fortune 500 company in a Ninth Circuit and U.S. Supreme Court proceeding which extended the objective Brooke Group predatory pricing standard to "buy-side" cases.


"Enforcement and Investigation: Tools and Resources"
International Organization of Securities Commissions AMCC Annual Seminar September 27, 2016

"Anatomy of a Criminal Spoofing Case: United States v. Coscia";
Internal Training, National Futures Association, July 18, 2016

Featured Speaker, Chicago Bar Association 2016 Futures & Derivatives Seminar;
June 10, 2016

Panelist, "Recent High Frequency Trading and Spoofing Enforcement Actions: Lessons Learned and Compliance";
American Bar Association Business Law Section, 2016 Annual Meeting, April 7, 2016

"Anatomy of a Criminal Spoofing Case: United States v. Coscia";
Internal Training, Commodity Futures Trading Commission, December 3, 2015

"Securing a Successful Prosecution—A Federal Prosecutor’s Perspective";
2015 Annual Training Conference, International Association of Financial Crimes Investigators, Illinois Chapter, International Association of Financial Crimes Investigators, October 21, 2015

"Securing a Successful Prosecution—A Federal Prosecutor’s Perspective";
2015 Annual Training Conference, National Chapter, International Association of Financial Crimes Investigators, September 1, 2015

"Investigation and Charging of Disruptive Trading Practices/Spoofing: Potential Legal Issues";
Securities and Commodities Fraud Working Group, June 18, 2015

"Long Term Investigations";
Internal Training, United States Attorney’s Office, Northern District of Illinois, April 24, 2015

"Litigating on the Cheap";
Chicago Bar Association, Intellectual Property Committee, October 20, 2012