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John Roberti


Washington, D.C.

Roberti John
John Roberti


Washington, D.C.

John is the partner in charge of Allen & Overy's Washington D.C. Antitrust practice and a member of the firm's Investigations and Litigation practice. John focuses his practice on civil antitrust litigation and investigations. He provides strategic guidance to clients on all issues that relate to antitrust, and represents companies in court and before the agencies in their most important matters.

John is an alumnus of the FTC which, along with the experience developed in private practice, gives him insight into the workings of the FTC and the U.S. Department of Justice's (DOJ) Antitrust Division. He represents clients in all aspects of government investigations and private antitrust litigation, and has guided clients through complex merger and civil investigations involving a wide range of complex issues. John also has handled high-profile trials and litigation in both private practice and during his tenure with the FTC, and represents clients in high stakes class action litigation. John has particular experience in defending civil cartel cases.

Both Chambers USA and Legal 500 have recognized John as a leading antitrust lawyer for many years. Chambers reports that John provides "incredibly intelligent and well-versed in all things antitrust" and "analyses issues quickly and is extremely flexible." John is also recognized as an Antitrust Litigation ‘Super Lawyer’ in the Washington D.C. area. John is the host of the American Bar Association Antitrust Law Section's weekly podcast, Our Curious Amalgam. He is also a Fellow of the American Bar Foundation and serves on two non-profit boards supporting children with special needs.


Washington, D.C.

Allen & Overy LLP
1101 New York Avenue, NW
Washington, D.C.

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Admitted: Bar of the District of Columbia

Admitted: Bar of the State of New York

Admitted: United States District Courts
Eastern District of New York
Southern District of New York
Western District of New York
District of Columbia

Admitted: United States Courts of Appeals
Second Circuit
Eleventh Circuit
District of Columbia Circuit

Admitted: United States Supreme Court


J.D., New York University School of Law, 1994 

B.A., Brown University, 1991

Experience highlights


Published work

  • "When Is the Social Good an Antitrust Bad?", (March 6, 2020), with Puja Patel.
  • "The Death of Antitrust Leniency?: Reviving a key self-reporting and prosecutorial mechanism" Washington Legal Foundation (2019), with Providence Napoleon, Eun Joo Hwang, and Shireen Meer.
  • INSIGHT: 1-800 Contacts FTC Ruling Offers Warnings for In-House Counsel on Online Advertising by John Roberti and Puja Patel (Published on March 6, 2019 to
  • "The Role and Relevance of Exemptions and Immunities in U.S. Antitrust Law," presented at the United States Department of Justice Roundtable on Exemptions and Immunities from Antitrust Law, (March 14, 2018), available at, with Kelse Moen and Jana Steenholdt.
  • "Third Circuit Should Reverse Ruling that Threatens Technology Industry’s Customer-Support Model," Legal Backgrounder, Washington Legal Foundation (2015), with David Ernst and Matthew Boucher.
  • “HSR Enforcement Action Highlights Narrow Scope of Passive Investor Exemption,” Allen & Overy eAlert (2015), with Elaine Johnston, David Ernst, and Desma Polydrou
  • “Overview of the Hart-Scott-Rodino Annual Report for Fiscal Year 2014,” Allen & Overy eAlert (2015), with Elaine Johnston, John Terzaken, David Ernst, and Desma Polydrou
  • “Avoiding Antitrust Exposure from Information Exchanges During Transactions,” BNA Antitrust & Trade Regulation Report (2014), with Scott Perlman
  • “The Year Ahead In Global Antitrust Enforcement,” Law360 (2014)
  • “Competition Law in Merger Transactions: Managing and Allocating Risk in the New Normal,” Competition Law International (2013), with Richard Steuer and Jodi Simala
  • “The Application of Antitrust to Public Companies’ Disclosures,” Administrative Law Review (2011), with Richard Steuer and Daniel Jones
  • “Avoiding antitrust risks in public statements and disclosures,” Securities Regulation Law Journal (2011), with Richard Steuner and Jodi Simala
  • “Preparing for and Responding to Government Antitrust Investigations,” Mergers & Acquisitions (2010), with Andrew Marovitz

News & insights

Overview of the Hart-Scott-Rodino Annual Report for Fiscal Year 2019

Publications: 21 JULY 2020

Overview of the Hart-Scott-Rodino Annual Report for Fiscal Year 2019

The U.S. Federal Trade Commission (“FTC”) and the U.S. Department of Justice Antitrust Division (“DOJ”) recently issued their Hart-Scott-Rodino Annual Report for Fiscal Year 2019 (the “Report”). This…

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Antitrust in focus

Publications: 31 JANUARY 2020

Antitrust in focus - January 2020

This newsletter is our take on the antitrust developments we think are most interesting to your business. John Roberti, partner based in Washington, D.C., is our editor this month. He has selected:

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an image of stone pillars

Publications: 31 JANUARY 2020

FTC announces increased HSR thresholds – size-of-transaction threshold to be USD94.0 million

The Federal Trade Commission (FTC) has announced increases to the notification thresholds under the Hart-Scott-Rodino (HSR) Antitrust Improvements Act, which requires pre-merger notification of…

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Publications: 24 OCTOBER 2019

An examination of global class action regimes after Godfrey

On September 20, 2019, the Supreme Court of Canada (“SCC”) issued a landmark antitrust class action decision in Pioneer Corp. v Godfrey which clarified several procedural questions relating to class…

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