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Juan A. Arteaga

Phone: +1 212.803.4053
590 Madison Avenue, 20th Floor
New York, NY 10022-2544

Juan A. Arteaga is an experienced antitrust and white collar attorney with significant litigation and trial experience. He is a former Deputy Assistant Attorney General for the U.S. Department of Justice’s Antitrust Division, where he led and oversaw various high-profile civil and criminal investigations and litigation. His practice focuses primarily on advising companies, boards of directors, special committees, and executives on a broad range of civil and criminal antitrust matters, including litigation, merger reviews, and government and internal investigations. Juan also represents clients in a wide range of high-profile and complex regulatory investigations and commercial litigation, including securities litigation, shareholder derivative actions, class actions, and international arbitrations.

Juan has been recognized as a leading lawyer by numerous professional publications and associations. He was named a “Diversity and Inclusion Champion” by the New York City Bar Association (2019), a “Rising Star” by the Minority Corporate Counsel Association (2018), a “Distinguished Leader” by the New York Law Journal (2018), a “CUP Catalyst” by the Council of Urban Professionals (2018), selected to the Ethisphere Institute’s “Attorneys Who Matter” list (2017), an “Antitrust Rising Star” by Law360 (2017), a “Rising Star” by the New York Law Journal (2016), and a “Top Lawyer Under 40” by the Hispanic National Bar Association (2012). He has also received numerous awards for his pro bono work and civic involvement from organizations such as the New York Legal Aid Society, Legal Outreach, Her Justice, Puerto Rican Bar Association, and LatinoJustice.

Juan is the Co-Chair of the firm’s Diversity Council and the hiring partner for the New York office. He also serves on the firm’s Recruiting and Professional Development Committees.

His representative antitrust and white collar experience includes:

  • Web browser company and mobile device manufacturer in ongoing state and federal investigations into whether certain “Big Tech” companies have engaged in anticompetitive conduct and/or business transactions
  • A Fortune 50 company in a DOJ grand jury investigation into whether the company entered into unlawful “no-poach” agreements
  • CSX Transportation in multidistrict litigation alleging a price-fixing conspiracy among certain providers of rail freight transportation services
  • AT&T in DOJ investigation and trial that resulted in district court rejecting DOJ’s challenge to AT&T’s $85 billion acquisition of Time Warner (the first litigated vertical merger challenge in nearly 50 years)
  • United Technologies in securing DOJ and foreign competition agencies' approval of the company's $30 billion acquisition of Rockwell Collins
  • Elite higher education institution in ongoing DOJ investigation related to the early decision admission practices and policies of various colleges and universities
  • Turner Construction in securing dismissal of Southern District of New York action alleging antitrust and RICO claims arising out of an alleged bid rigging and price fixing scheme
  • Major U.S. retailer in successfully resolving market monopolization inquiry conducted by California state agencies without any enforcement action
  • JPMorgan Chase in successfully resolving multiple multidistrict litigations involving the alleged manipulation of various benchmarks for financial instruments, including LIBOR, EURIBOR, and TIBOR
  • MasterCard in Southern District of New York trial and Second Circuit appellate proceedings that resulted in the successful enforcement of a DOJ antitrust consent decree against Visa
  • MasterCard in successfully resolving separate multi-billion dollar antitrust actions brought by American Express and Discover in the Southern District of New York
  • Global financial institution in parallel U.S. criminal and civil regulatory investigations conducted by the DOJ and CFTC concerning alleged market manipulation
  • Senior executive of mobile device manufacturer in DOJ price-fixing investigation
  • Multinational commercial bank and its affiliate investment bank in persuading securities enforcers to close anti-tying investigation without any enforcement action
  • Major private equity firm in successfully avoiding any civil or criminal charges in the New York Attorney General’s state pension fund “pay-to-play” investigation
  • Special committee of the board of a global investment bank in an internal investigation related to the multi-billion dollar write-down of certain subprime mortgage investments
  • Audit committee of the board of a global investment bank in an internal investigation related to the sale of auction rate securities
  • Various third parties in connection with DOJ and FTC civil merger and non-merger investigations

His representative commercial litigation and arbitration experience includes:

  • Macquarie Capital and various subsidiaries in successfully obtaining the dismissal of various fraud claims in a New York state court action
  • AT&T in successfully resolving a Southern District of New York action brought by Sprint which alleged false advertising and unfair business practices claims related to AT&T’s “5GE” advertisements
  • KKR and various KKR officers in successfully resolving multiple federal and state court securities fraud actions arising out of the acquisition and subsequent bankruptcy of Bruno’s Inc.
  • Morgan Stanley board members in obtaining the dismissal of multiple shareholder derivative actions brought in the Southern District of New York which alleged breach of fiduciary duty and securities fraud claims
  • RBS, Deutsche Bank, and UBS in residential mortgage-backed securities litigation brought in multiple federal courts, including actions brought by the Federal Housing Finance Authority
  • Telefónica Móviles and certain affiliates in bankruptcy proceedings and a related breach of contract action in New York state court and Delaware bankruptcy court
  • MatlinPatterson in successfully opposing the U.S. enforcement of a $55 million Brazilian arbitral award during trial court and appellate proceedings before the Southern District of New York and Second Circuit
  • New Brunswick Power in obtaining a $300 million settlement against two Venezuelan state-owned entities during an ICDR arbitration and parallel Southern District of New York action
  • Government of the Dominican Republic in successfully resolving two international investment treaty arbitrations and a companion ICC case stemming from the privatization of the country’s electricity sector

Between 2013 and 2017, Juan was a senior official in the Antitrust Division of the U.S. Department of Justice. During this period, Juan served as the Deputy Assistant Attorney General for Civil Enforcement, where he led and oversaw numerous high-profile and complex investigations and litigation related to various industries, including financial services, aviation, food and beverage, health care, technology, cable, manufactured products, transportation, and telecommunications. Juan also served as Chief of Staff and Senior Counsel to the Assistant Attorney General for the Antitrust Division. In this role, Juan helped oversee all aspects of the Antitrust Division’s operations and enforcement programs, including merger reviews and enforcement actions, non-merger civil investigations and litigation, and criminal cartel investigations and prosecutions. He also helped advise White House officials on competition policy issues and oversee the Antitrust Division’s coordination with various federal regulatory agencies, State Attorneys General, and foreign competition enforcement agencies.

While at the Antitrust Division, Juan worked on numerous merger and non-merger litigations, including:

  • U.S. v. Aetna and Humana (successful challenge, after three week trial, to Aetna’s proposed $37 billion acquisition of Humana)
  • U.S. v. Halliburton and Baker Hughes (Halliburton abandoned proposed $34 billion acquisition of Baker Hughes after one month of litigation)
  • U.S. v. Electrolux and General Electric (Electrolux abandoned proposed $3.3 billion acquisition of General Electric’s cooking appliances business after four weeks of trial)
  • U.S. v. Energy Solutions and Waste Control Specialists (successful challenge, after three week trial, to Energy Solutions’ proposed $367 million acquisition of Waste Control Specialists)
  • U.S. v. National CineMedia and Screenvision (NCM abandoned proposed $375 million acquisition of Screenvision on the eve of trial)
  • U.S. v. United Airlines and Delta Airlines (United abandoned proposed acquisition of additional take-off/landing slots from Delta at Newark Liberty Airport after several months of litigation)
  • U.S. v. US Airways and American Airlines (US Airways agreed to divest 138 landing slots and 10 gates at key U.S. airports to settle challenge to $11 billion acquisition of American Airlines)
  • U.S. v. ValueAct (activist investment manager agreed to pay record $11 million fine and refrain from certain conduct for failing to comply with premerger notification requirements)
  • U.S. v. Anheuser-Busch Inbev/SABMiller (ABI agreed to divest MillerCoors and refrain from certain beer distribution practices in order to proceed with $107 billion acquisition of SABMiller)
  • U.S. v. Alaska Airlines/Virgin America (Alaska agreed to scale back codeshare agreement with American Airlines in order to proceed with $4 billion acquisition of Virgin)
  • U.S. v. Carolinas HealthCare System (successful challenge to CHS’ anti-steering contractual provisions)

Juan devotes significant time to pro bono and community work. He has represented immigrants in deportation proceedings, battered women and their children in family court and immigration proceedings, and indigent criminal defendants in post-conviction habeas proceedings and appeals. Juan serves on the boards of various non-profit organizations, including Legal Outreach, Northern Manhattan Improvement Corp., and Free the Slaves. He also serves on the New York City Bar Association’s Judiciary Committee and the Fourth Circuit’s Criminal Justice Act Panel. He has previously served as a fellow in the White House Presidential Leadership Program, the American Bar Association’s Litigation Section Leadership Program, and the Leadership Council on Legal Diversity.

Juan received his J.D. from Columbia Law School, where he served as a managing editor of the Law Review and was a Harlan Fiske Stone Scholar. He received his B.A., magna cum laude, from Boston College, where he was elected to Phi Beta Kappa and received the Archbishop Oscar Romero Scholarship. After law school, Juan served as a judicial law clerk for Judge Roger L. Gregory of the U.S. Court of Appeals for the Fourth Circuit.


  • Boston College, B.A. (1999) magna cum laude and Phi Beta Kappa
  • Columbia Law School, J.D. (2002) Managing Editor, Columbia Law Review and Harlan Stone Fiske Scholar


Admitted to practice: New York, Connecticut

Professional Activities and Memberships

  • Member, New York City Bar Association, Judiciary Committee
  • Member, American Bar Association, Antitrust Section
  • Member, Hispanic National Bar Association
  • Member, Puerto Rican Bar Association 

View More

Diversity At Law Firms: A Renewed Focus Columbia Law School (October 12, 2020)
Media Mentions
"House Antitrust Digital Markets Report Proposes Vast Overhaul of Antitrust Law and Enforcement," Antitrust Law Alert (October 9, 2020). Contacts: Jeane A. Thomas, CIPP/E, Alexis J. Gilman, Juan A. Arteaga, Angel Prado, Eric Fanchiang
Client Alert / Newsletter
"DOJ Antitrust Division Announces Organizational Changes Focused On Increasing Prosecution of Consent Decree Violations and Civil Conduct Offenses," Antitrust Law Alert (August 25, 2020). Contacts: Juan A. Arteaga, Alexis J. Gilman, Wm. Randolph Smith, Rosa M. Morales
Client Alert / Newsletter
"DOJ Sues to Block Geisinger Health’s Minority Investment in Evangelical Community Hospital," (August 7, 2020). Contacts: Alexis J. Gilman, Shawn R. Johnson, Juan A. Arteaga, Richard Stella
Client Alert / Newsletter
"Antitrust Agencies Launch Vertical Merger Guidelines, Still Fall Flat with Two FTC Commissioners," Regulatory Alert (July 1, 2020). Contacts: Alexis J. Gilman, Britton D. Davis, Olivier N. Antoine, Juan A. Arteaga, Shawn R. Johnson, Jeane A. Thomas, CIPP/E, Ryan C. Tisch
Client Alert / Newsletter
"Minimizing Damages In Gov't Procurement Antitrust Cases," Law360 (May 13, 2020). Author: Juan A. Arteaga.
"DOJ Continues Expedited Approval of COVID-19 Related Competitor Collaborations," Antitrust Law Alert (April 24, 2020). Contacts: Juan A. Arteaga, Alexis J. Gilman, Ryan C. Tisch
Client Alert / Newsletter
"DOJ and FTC Warn Companies to Avoid Anticompetitive Employment Practices During COVID-19 Pandemic," Antitrust Law Alert (April 16, 2020). Contacts: Juan A. Arteaga, Alexis J. Gilman
Client Alert / Newsletter
"Big Tech Antitrust," Georgetown Corporate Counsel Institute, Washington, D.C. (March 11, 2020). Panelist: Juan A. Arteaga.
"Collaborative Crisis Response: Antitrust Compliance & the Coronavirus Outbreak," Antitrust Law Alert (March 10, 2020). Contacts: Ryan C. Tisch, Juan A. Arteaga, Alexis J. Gilman
Client Alert / Newsletter

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