Matt Solomon joined the firm as a partner after serving for 15 years as a white-collar prosecutor and unit chief with the U.S. Department of Justice and as a senior enforcement official with the U.S. Securities and Exchange Commission—most recently as the SEC’s Chief Litigation Counsel.

At Cleary, Matt represents global financial institutions, public and private companies (foreign and domestic), private equity firms, asset managers, and individual corporate executives and employees on a broad range of issues and disputes spanning from regulatory compliance and remediation advice to advocacy and litigation against the government and private parties. Matt leverages his high-level government experience as both a former federal prosecutor and supervisor and SEC enforcement official to vigorously represent his clients’ interests before a broad range of criminal and regulatory authorities, including the SEC, DOJ, CFTC, FINRA, and State Attorneys General.

Matt has tried more than 20 cases to verdict, including as lead counsel in complex, white-collar jury trials in the District of Columbia, the Northern District of California, the Eastern District of Kentucky, and the District of Puerto Rico. He has also briefed and argued cases in the U.S. Court of Appeals for the D.C. Circuit, the First Circuit, and the Seventh Circuit.

Prior to joining Cleary, Matt served as the SEC’s Deputy Chief Litigation Counsel in 2012 before being promoted to Chief Litigation Counsel in 2013. As the agency’s top litigator, Matt led the SEC’s 150-attorney national trial unit and supervised the SEC’s litigated cases in federal court and administrative proceedings. Matt regularly interacted with the SEC enforcement staff nationwide in relation to complex issues arising in investigations and counseled the directors of the SEC’s Enforcement Division as well as its specialized divisions, including the Divisions of Corporation Finance and Trading and Markets, on issues relating to litigation strategy and risk.

Before joining the SEC, Matt served in prominent positions over nearly a decade with the DOJ, including as an Assistant U.S. Attorney, as the Chief of the Fraud Unit for the 350-lawyer U.S. Attorney’s Office for the District of Columbia, and as an Honors Program trial attorney in the Criminal Division’s Public Integrity Section. He also spent nearly two years (on detail from the DOJ) serving as Counsel to the Chairman of the U.S. Senate Judiciary Committee where he worked on criminal law and national securities issues.

Notable Experiences

Select Entity Investigations and Litigations

  • A cryptocurrency exchange platform in connection with multiple government investigations.

  • Nissan Motor Corp. in an SEC investigation and subsequent resolution in connection with former CEO Carlos Ghosn’s arrest and indictment in Japan

  • T-Mobile U.S. and Deutsche Telekom in a multi-week federal trial brought by a coalition of state attorneys general challenging the merger of T-Mobile and Sprint, which, after a favorable verdict clearing the merger, resulted in a combined company with an enterprise value of $146 billion.

  • A Fortune 100 company in connection with an SEC inquiry into cyber-related issues.

  • OPKO Health, Inc., a publicly-traded healthcare company, in an SEC investigation, federal court litigation and resolution, and in connection with related derivative and class action litigation.

  • Old Ironsides Energy, a private equity firm, in connection with an SEC investigation and resolution.

  • Medytox Inc., a global pharmaceutical company, in Indiana state court litigation in connection with misappropriation of trade secrets allegations. 

  • Virtu Financial, Inc., a financial services company, in connection with several regulatory matters before the SEC and various exchanges and in connection with several SEC resolutions.

  • Citibank, N.A., in connection with multiple regulatory investigations.

  • An international beauty company in connection with an SEC investigation into sales and accounting practices.

  • A regional U.S. bank in connection with a DOJ, SEC, and Federal Reserve Board investigation arising out of the reporting of potential related-party transactions.

  • A public company in connection with an SEC inquiry following an accounting restatement.

  • A public company in connection with an SEC investigation into potential proxy violations related to perquisites.

  • A ratings agency in connection with an SEC investigation and resolution.

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Select Individual Representations

  • The current CEO of Ripple Labs, Inc., in connection with an SEC investigation and on-going federal court litigation against the SEC in the Southern District of New York relating to cryptocurrency-related issues.

  • A Fortune 100 CEO in connection with corporate governance issues.

  • A hedge fund manager in connection with an SEC investigation and resolution related to short-selling allegations.

  • A former CFO of a multi-billion-dollar European hedge fund in connection with an SEC investigation.

  • A former CFO of a global shipping company in connection with a DOJ and SEC investigations into potential accounting and procurement fraud.

  • A former senior vice-president of a global engineering company in connection with DOJ and SEC investigations into potential accounting fraud.

  • A partner at a Big Four accounting firm in connection with a PCAOB auditor independence inquiry.

  • A U.S. congressman in connection with a federal public corruption investigation.

  • A procurement official of a global telecommunications company in connection with DOJ and SEC investigations into potential accounting fraud.

  • A former senior financial analyst at a Fortune 100 company in connection with an SEC investigation into potential accounting fraud.

  • The owner of a global hospitality company in connection with a federal public corruption trial in the District of New Jersey.

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Select Compliance/Advisory Matters

  • Retained as an expert witness in connection with a New York Supreme Court trial involving a dispute between hedge fund partners and their former fund.

  • Retained to train securities traders nationwide at a multi-billion-dollar hedge fund on civil and criminal insider trading laws.

  • Advised numerous U.S. issuers in relation to an SEC cyber sweep.

  • Advised a Fortune 100 company in connection with redesigning its global compliance and investigative policies and procedures in multiple jurisdictions.

  • Advised a global financial institution on the efficacy of its information walls to guard against the improper use of material non-public information.

  • Conducted a privileged analysis of a multi-billion-dollar private equity fund’s fee and expense allocations between funds.

  • Advised a global hospitality company on its anti-corruption policies and procedures.

  • Advised multiple global financial institutions and investment advisers in connection with revisions to whistleblower and anti-retaliation policies and procedures.

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Selected Activities

  • Steering Committee Member, 2021 Forum on SEC Enforcement, Cambridge Forums
  • Barrister, Edward Bennett Williams Inn of Court


2021 Developments in Securities and M&A Litigation,” (co-authored with Joon H. Kim, Victor L. Hou, Roger A. Cooper, Lisa Vicens, Jared Gerber, Rishi N. Zutshi, Nowell D. Bamberger, Abena Mainoo, Rahul Mukhi, Lina Bensman, Mark E. McDonald, Alexander Janghorbani, Anthony M. Shults, Avion A. Tai and Chelsea Hanlock), Cleary Gottlieb Alert Memorandum, January 18, 2022.

SEC Charges Eight Companies and Signals Need for Better Disclosures About Delayed Filings,” (co-authored with Nicolas Grabar, David Lopez, Alexander Janghorbani and Fernando A. Martinez), Cleary Gottlieb Alert Memorandum, May 6, 2021.

The SEC’s Whistleblower Program: What Every Company Needs to Know,” (co-authored with Sean X. McKessy), New York Law Journal, January 15, 2021

Priorities, Trends and Developments in Enforcement and Compliance,” (co-authored with Joon H. Kim, Robin M. Bergen, Lisa Vicens and Samuel Levander) Selected Issues for Boards of Directors in 2021, January 11, 2021. 

SEC Brings Enforcement Action Against Global Brokerage Company, Finding False and Misleading Statements In Connection With Non-GAAP Financial Measures,” (co-author with Nick Grabar, Lisa Vicens, and Robin M. Bergen) Cleary Enforcement Watch blog post, November 9, 2020.

What to Expect From the Biden Administration,” (co-author with Giovanni P. Prezioso, Francesca L. Odell, James E. Langston, Helena K. Grannis, Joon H. Kim, Victor L. Hou, D. Bruce Hoffman, Leah Brannon, Jeremy J. Calsyn, Kyle A. Harris, Paul Marquardt, Chase D. Kaniecki, Michael J. Albano, Mary E. Alcock, Diana L. Wollman, Jason R. Factor, and Corey M. Goodman), Cleary Gottlieb Alert Memorandum, November 9, 2020; republished by by Harvard Law School Forum on Corporate Governance and Financial Regulation, November 11, 2020 

SEC Internal Controls Case Demonstrates Agency’s Focus On MNPI Issues In The Stock Buyback Context,” (co-author with Matthew P. Salerno, James E. Langston, Jeffrey D. Karpf, Nicolas Grabar and Francesca L. Odell), Cleary Gottlieb Alert Memorandum, October 19, 2020; featured in the Society for Corporate Governance Weekly Newsletter October 21, 2020 

SEC Issues Enforcement Action Against Unikrn, Inc. for its ICO, Prompting Rare Public Dissent from Commissioner Hester Peirce,” (co-author with Alexis Collins, Colin D. Lloyd, Zachary L. Baum and Jim Wintering), Cleary Enforcement Watch blog, September 24, 2020

Supreme Court Upholds, with Limits, the SEC’s Authority to Seek Disgorgement,” (co-author with Breon S. Peace, Alexander Janghorbani and Robin M. Bergen), Cleary Gottlieb Alert Memorandum, June 25, 2020

Supreme Court Puts the Brakes on the “Bridgegate” Scandal and Affirms That Property Must Be the Object of Federal Fraud Schemes,” (co-author with David Brodsky, Rahul Mukhi, and Victoriya Levina), Cleary Gottlieb Alert Memorandum, May 11, 2020; republished by Law360, May 12, 2020

SEC Chief Accountant Weighs in on Accounting Issues During the COVID-19 Outbreak,” (co-author with Sandra L. Flow, Nicolas Grabar and Abena Mainoo), Cleary Enforcement Watch blog, April 9, 2020

Second Circuit: Criminal Fraud Statutes Do Not Require Prosecutors to Show that Tippers in Insider-Trading Cases Received a ‘Personal Benefit,’” (co-authored with David E. Brodsky, Lev L. Dassin, Victor L. Hou, Robin M. Bergen, and Jonathan S. Kolodner) Cleary Gottlieb Alert Memorandum, January 13, 2020

Headwinds and Shifting Priorities: Beyond the Numbers in the SEC Enforcement Division’s 2019 Annual Report,” (co-authored with Robin Bergen, Alexander Janghorbani, Jenny Paul, and Samuel H. Chang), November 11, 2019, republished by the NYU Compliance & Enforcement blog, November 12, 2019

Supreme Court to Consider Whether the SEC Has Authority to Seek Disgorgement in Federal Court Actions: Will the Court Further Prune the SEC’s Enforcement Powers?,” (co-authored with Robin Bergen, Jennifer Kennedy Park, Alexis Collins, and Alex Janghorbani, November 4, 2019, republished by Law360, November 6, 2019

SEC Brings Settled Action Against Mylan N.V. for Alleged Failure to Disclose Government Investigation,” (co-authored with Robin Bergen, Adam Fleisher, Rahul Mukhi and Alexander Janghorbani), October 8, 2019, republished by the Columbia Law School Blue Sky Blog, October 15, 2019 and Law360, October 17, 2019

Proposed Bad Actor Disqualification Act of 2019 Would Severely Limit the Availability of Waivers for Institutions Entering into Settlements with the SEC and DOJ,” (co-authored with Robin Bergen, Alexander Janghorbani, and Joon Kim), July 9, 2019; republished by Harvard Law School Forum on Corporate Governance and Financial Regulation, July 20, 2019

SEC’s Gladius Enforcement Shows That Cooperation Pays,” (co-authored with Pamela Marcogliese, Alex Janghorbani, and Jim Wintering) Law360 , March 12, 2019; republished by Harvard Law School Forum on Corporate Governance and Financial Regulation, March 14, 2019

Retail, Remedies, Resources and Results: Observations From the SEC Enforcement Division 2018 Annual Report,” (co-authored with Robin Bergen, Alexis Collins, Anne Hilby, and Adam Motiwala), Cleary Enforcement Watch blog, November 6, 2018; republished by the Harvard Law School Forum on Corporate Governance and Financial Regulation, November 24, 2018

The Tesla Settlement – What It Means for Other Companies,” (co-authored with Nicolas Graber and David Lopez) Harvard Law School Forum on Corporate Governance and Financial Regulation, November 14, 2018

Lorenzo v. SEC: Will the Supreme Court Further Curtail Rule 10b-5?” (co-authored with Roger Cooper and Les Silverman) Harvard Law School Forum Corporate Governance and Financial Regulation, July 30, 2018

Supreme Court Ruling on SEC-Appointed Judges,” (co-author with Alex Janghorbani), Harvard Law School Forum on Corporate Governance and Financial Regulation, July 16, 2018

Cleary Gottlieb Discusses SEC’s Latest Take on Digital Assets as Securities,” (co-author with Mike Krimminger, Pam Marcogliese and Zachary Baum), Columbia Law School Blue Sky Blog, June 21, 2018

Kokesh and Its Impact on SEC Enforcement, a Year Later,” (co-author with Alexander Janghorbani and Michael Heckmann), Law360, June 4, 2018

Failure to Disclose a Cybersecurity Breach” (co-author with Pam Marcogliese, Rahul Mukhi, and Kal Blassberger), Harvard Law School Forum on Corporate Governance and Financial Regulation, May 17, 2018 

The SEC Cyber Unit’s First 6 Months, and What’s Ahead,” (co-author with Jonathan Kolodner, Rahul Mukhi, and Anne Titus Hilby), Law360, April 2, 2018

Pitfalls of Voluntary Remediation by Investment Firms,” (co-author with Robin Bergen, Adrian Rae Leipsic, and Alexis Collins), Law360, February 8, 2018

Supreme Court Grants Certiorari on the Constitutionality of SEC ALJ Appointments–What This Means for the Securities Industry,” (co-author with Alex Janghorbani and Richard R. Cipolla), Compliance & Enforcement blog from the Program on Corporate Compliance and Enforcement and New York University School of Law, January 24, 2018

Analysis of SEC Enforcement Division Annual Report,” (co-author with Robin Bergen and Alexis Collins), Harvard Law School Forum on Corporate Governance and Financial Regulation, December 6, 2017

Cleary Gottlieb Discusses Federal Spoofing Conviction,” (co-author with Lewis Liman and Jonathan Kolodner), The Columbia Law School Blue Sky Blog, August 16, 2017

Supreme Court Applies Five-Year Statute of Limitations to SEC Disgorgement Claims,” (co-author with Lewis Liman and Alexander Janghorbani), Harvard Law School Forum on Corporate Governance and Financial Regulation, June 7, 2017

Fate of the SEC In-House Court: Careful What You Wish For,” (co-author with Alexander Janghorbani and Richard Cipolla), Law360, May 23, 2017 

“Acting SEC Chair’s Steps to Centralize the Process of Issuing Formal Orders—Are Commentators Drawing the Right Lessons?” (co-author with Lisa Vicens), Harvard Law School Forum on Corporate Governance and Financial Regulation, March 13, 2017

“GC Whistleblowing And Other Implications From Bio-Rad,” Law360, February 28, 2017