Overview
Our antitrust roots run deep. One of our name partners, Gordon Hampton, was a founder of the American Bar Association’s Antitrust Section in the 1950s and he helped forge a premier California antitrust practice that continues more than sixty years later. From there, we expanded our practice in parallel with the expansion of antitrust law itself—first into a national presence with the addition of our antitrust teams in Washington, D.C. and New York and then into a global force with established competition practices in Brussels, London and Seoul. The result is a practice that is international in every sense of the word, specifically designed to meet the realities of modern antitrust and competition enforcement, where a competition issue in one jurisdiction often cascades into other jurisdictions around the globe.
Today, our group is composed of lawyers who do nothing but practice antitrust and competition law. The team, part of the firm’s Governmental Practice, includes former high-ranking officials and trial lawyers from the U.S. Department of Justice, U.S. Federal Trade Commission, and the European Commission’s Directorate General for Competition. Together under one umbrella, we all work together seamlessly, handling matters on behalf of a diverse array of clients throughout the United States, Europe, and Asia.
Regardless of where we call home, we share a common ethic: we are practical lawyers who believe we should do the things that actually make a difference in achieving our client’s goals. That ethic, combined with the breadth and depth of our experience, has enabled us to successfully resolve extremely complicated antitrust matters with teams that are lean and efficient.
Some highlights of our antitrust and competition practice include:
We regularly litigate some of the largest and most complex antitrust cases in the U.S., from federal multi-district class actions to civil litigation between competitors, suppliers, and purchasers. Our attorneys have taken antitrust cases to trial and appeal. We have successfully resolved antitrust litigation matters for clients in a broad range of industries, including consumer electronics, software, cement and concrete, and grocery. We also have deep experience with litigation arising under state antitrust and competition laws, including below-cost pricing, consumer protection, and unfair competition statutes. In the EU, our lawyers have an impressive track record of pleading competition cases before EU courts and the national courts of the Member States, challenging decisions taken by the European Commission and national competition authorities. They also regularly appear before national courts when EU law issues are at stake (in competition matters and beyond) and before the Court of Justice of the European Union in procedures referred by national courts.
Our lawyers have experience with all phases of U.S. merger review, including HSR filings, pull-and-refiles, second requests, as well as litigation and trial. We also navigate the merger review and approval process in other countries around the globe, and our merger clearance team assists multinational clients in crafting strategies and coordinating merger proceedings across multiple jurisdictions. Our lawyers have successfully represented clients in numerous high-stakes mergers, including General Electric’s $10 billion acquisition of Alstom’s energy business in the EU and U.S. to VillageMD’s $8.9 billion acquisition of Summit Health-CityMD, among many others. In recent years, healthcare-related transactions have become a core component of our U.S. merger practice, and we routinely represent hospitals, doctors, insurance companies, and strategic venture capital and private equity buyers and sellers in such transactions.
Cartel defense work has been a pillar of our practice for decades. We were at the forefront of the explosion in international cartel cases beginning in the 1990s and have remained a leading cartel practice ever since. Today our group is at the forefront of new and emerging trends in criminal antitrust enforcement, including representation of clients in no-poach or wage-fixing matters. Our group includes some of the most experienced and accomplished cartel defense lawyers in the world, working in every phase of cartel defense, from government investigations, to criminal prosecutions and enforcement actions against businesses and individuals, through the resolution of civil class actions and other private litigation. In the U.S., we have successfully represented key defendants in government investigations, criminal prosecutions, and private class actions involving LCD panels, DRAM and SRAM memory chips, auto parts, cathode ray tubes, and Lithium ion batteries, among other products. In the EU, we have successfully represented clients in cartel investigations involving air cargo services, gas-insulated switchgear, power transformers, and many other areas. Compliance is also at the forefront of our client offerings.
We have an elite EU State aid practice, headed by lawyers with more than three decades of experience. We assist Member States, beneficiaries, and competitors with every type of State aid issue. We also tailor aid measures to ensure clearance from the European Commission and have authored innovative legal analyses that have led the European Commission to adjust its formal State aid enforcement policies. The Alstom restructuring case is one of our landmark cases before the European Commission. Our lawyers have also been involved in landmark State aid litigation, both before national and EU courts, that has helped shape the development of applicable EU law, including the Chronopost case on behalf of DHL and FedEx—the first action against a beneficiary of unlawful State aid—and the GB capacity mechanism case on behalf of Tempus Energy—the first annulment of an EU ’s approval of a capacity mechanism.
We have a renowned practice in the area of increasing overlap between antitrust and intellectual property laws, and our lawyers are on the cutting-edge of antitrust issues arising from the use and licensing of standard-essential patents (SEPs). We recently achieved a complete dismissal of all claims in an antitrust case challenging the legal viability of one of the world’s largest defensive patent aggregators and we recently represented Samsung Electronics in global patent and standards-related governmental and private antitrust actions involving Qualcomm, Apple, and Ericsson.
With ever-increasing focus on Big Tech by U.S. federal and state antitrust enforcement agencies, Sheppard Mullin’s antitrust team is well positioned to help our clients—whether as an interested third-party or an investigatory target—respond to inquiries from these agencies and, if necessary, manage involvement in related litigation. The rise and alleged dominance of Big Tech companies has led to unprecedented concerns about whether antitrust laws and enforcement policies address modern competitive issues, or whether significant changes are required. The DOJ, FTC, State AG’s and private enforcers have taken aim, pursuing novel and aggressive strategies against Big Tech companies. Because interacting with these tech giants is a practical and existential necessity for most companies, many may find themselves caught in the cross-fire. We can help companies navigate this new frontier of antitrust enforcement and scrutiny.
Our EU lawyers guide clients navigating EU legislation in a number of sectors, including energy, transportation (rail, aviation, road, maritime), telecommunications and satellite, food and beverage, postal services and logistics, life sciences and pharmaceuticals, electronic devices, medical devices, construction, tax, financial services, retail, and consumer products, among others. Our team also develops advocacy opinions on proposed EU legislation in many sectors before the European Parliament or other EU institutions, including the European Commission and the Council of Ministers.
Recognitions
- JD Supra, 03.03.2025
- Chambers Global, 02.13.2025
- Global Competition Review, 12.11.2024
- Asian Legal Business, 10.14.2024
- Lawdragon, 09.06.2024
- Best Lawyers, 08.16.2024
- Legal 500 US, 06.12.2024
- Chambers USA, 06.06.2024
- Super Lawyers, 04.22.2024
- Legal 500 Belgium, 03.27.2024
- Chambers Europe, 03.14.2024
- JD Supra, 03.04.2024
- Chambers Global, 02.15.2024
- Super Lawyers, 01.10.2024
- Global Competition Review, 12.15.2023
- JUVE, 10.27.2023
- Asian Legal Business, 10.04.2023
- Lawdragon, 09.08.2023
- U.S. News and Best Lawyers, 08.17.2023
- Super Lawyers, 06.30.2023
- Legal 500 US, 06.07.2023
- Chambers USA, 06.01.2023
- Legal 500 Belgium, 04.12.2023
Insights
Podcasts & Webinars
Webinars
Articles
- 02.10.2025
- The US State of New York Senate Proposes Amendments To the Donnelly Act To Expand Antitrust Enforcement And Introduce An Abuse of Dominance StandardConcurrences, 02.04.2025
- The American Lawyer, 01.31.2025
- Loss of Collaboration Guidelines Irks PractitionersGlobal Competition Review, 12.16.2024
- GCR, 11.15.2024
- Law360, 11.12.2024
- Law360, 10.22.2024
- PE Hub, 09.01.2024
- Litigator of the Week Runners-Up and Shout-OutsLitigation Daily, The American Lawyer, 08.23.2024
- MultiPlan Defense Amid Price-Fixing Scrutiny Gets Boost in CourtBloomberg Law, 08.23.2024
- GCR, 06.20.2024
- Chipping Away at Per Se: Is Brewbaker a Harbinger or Aberration?ABA Antitrust Law Section Committee Articles, 06.06.2024
- The American Lawyer, 05.21.2024
- Bloomberg Law, 05.13.2024
- Law360, 04.30.2024
- POLITICO Pulse, 04.22.2024
- Law360, 04.16.2024
- Law360, 04.09.2024
- Food Manufacturing, 03.05.2024
- 02.15.2024
- 02.01.2024
- Sports Litigation Alert, 01.26.2024
- Aerospace Company Settles No-Poach Suit for $7.4 Millions’Bloomberg Law News, 01.25.2024
- Reuters, 01.25.2024
- Law360, 01.24.2024
- Comment: No Poach, Wage-Fixing Prosecutions to Continue as US DOJ Regroups, Reviews Adverse Jury VerdictsmLex, 12.29.2023
- STAT News, 12.20.2023
- DOJ Announces Mergers & Acquisitions Safe Harbor PolicyConcurrences, 10.04.2023
- The US FTC secures an innovative structural relief to prohibit interlocking directorates and preserve competition in the natural gas market (Quantum Energy Partners / EQT Corporation)Concurrences, 09.01.2023
- The US FTC issues a Civil Investigation Demand to an artificial intelligence company following an investigation into the use of AI technology and its potential to promote unfair methods of competition (OpenAI Chat GPT)Concurrences, 09.01.2023
- GCR, 07.11.2023
- GCR, 06.30.2023
- GCR, 06.30.2023
- GCR, 06.30.2023
- Corporate Counsel, 06.29.2023
- Law360, 05.18.2023
- Law360, 05.12.2023
- Global Competition Review , 05.09.2023
- Law360, 05.09.2023
- Global Competition Review, 03.24.2023
- PE Hub, 03.24.2023
- Competition Policy International, 02.2023
- Global Competition Review, 10.31.2022
- Publico Pro, 10.06.2022
- Money.it, 10.06.2022
- Global Competition Review, 06.24.2022
- Competition Policy International, 02.28.2022
- S&P Global, 01.18.2022
- Daily Journal, 10.13.2021
- Law360, 09.17.2021
- Global Competition Review, July 2021
- Icarus – ABA Section of Antitrust Law, Winter 2021
- AHLA's Speaking of Health Law Podcast, 02.01.2021
- Global Competition Review, 07.2020
- The Legal 500 Country Comparative Guides Hot Topic, 04.2020
- American Bar Association, Antitrust Section, 04.01.2020
- PaRR, 03.26.2020
- Law360, 01.27.2020
- GCR's Insight Private Litigation Guide, 01.2020
- Tax Notes International, 10.07.2019
- Los Angeles & San Francisco Daily Journal, 04.15.2019
- The Legal 500 - Cartels Country Comparative Guide, 04.03.2019
- Big Law Business, 03.19.2019
- Global Competition Review, 09.13.2018
- Global Competition Review, 04.05.2018
- Sheppard Mullin EU Competition Alert, 01.24.2018
- Practical Law, 03.23.2017
- Egypt Charges Ex-Football President with Criminal Abuse of DominanceGlobal Competition Review, 03.17.2017
- Sheppard Mullin EU Competition Alert, 01.18.2017
- Entrepreneur, 12.06.2016
- Competition (Calif. State Bar Antitrust Section publication), Fall 2016
- Law360, 10.27.2016
- Bloomberg Businessweek, 10.19.2016
- WhiteWave/Danone: Delay in EC filing not expected to postpone dealPaRR, 10.18.2016
- National Law Review, 10.11.2016
- Business Post, 09.30.2016
- Whitewave/Danone: EC review could hinge on approach to dairy vs. plant-based substitutesPaRR, 09.23.2016
- Competition Law Insight, 06.07.2016
- DG Comp Imposes Extensive AB InBev/SABMiller DivestmentsGlobal Competition Review, 05.25.2016
- Chambers Europe 2016, 05.24.2016
- Law360, 07.17.2015
- Law360, 06.16.2015
- Bloomberg BNA, 12.05.2014
- Daily Journal, 10.22.2014
- Law360, 06.03.2014
- Law360, 05.08.2014
- Law360, 04.11.2014
- Law360, 12.09.2013
- Daily Journal, 10.23.2013
- Media Watch 100 Online (Japan), 09.13.2013
- Law360, 09.03.2013
- Law360, 03.14.2013
- Law360, 09.27.2012
- The Recorder, 11.10.2011
- Law360, 09.07.2011
- New York Law Journal, 07.18.2011
- Sports Litigation Alert, 06.03.2011
- The Recorder, 04.18.2011
- CPI Antitrust Journal, 10.2010
- New York Times, 05.25.2010
- Law360, 04.01.2010
- Law360, 02.04.2010
- The Antitrust Source, 10.01.2009
- Law360, 09.21.2009
- New York Law Journal, 07.20.2009
- Los Angeles Daily Journal, 06.12.2009
- Competition, Vol 17, No. 2, Fall 2008
- Competition, Vol 17, No. 2, Fall 2008
- Los Angeles Daily Journal, 08.21.2008
- The Transportation Antitrust Update, 12.06.2007
- 06.13.2006
- 08.09.2005
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- 10.07.2003
- 10.01.2003
- 09.15.2003
- 09.08.2003
- 09.01.2003
- 08.06.2003
- 05.28.2003
- 08.01.2001
- 06.10.2000
Books
- 03.21.2023
- 08.2022
- 07.09.2020
Events
Events
- Marriott Marquis Hotel, Washington, DC, 04.03.2025
- 03.13.2025
- Hyatt Regency Miami, March 4-7, 2025
- 11.21.2024
- Webinar, November 7-8, 2024
- Webinar, 11.06.2024
- Washington, D.C., 10.28.2024
- Webinar, 10.22.2024
- Sofitel Philadelphia at Rittenhouse Square, 09.26.2024
- The Ritz-Carlton, Pentagon City, 06.05.2024
- WilmerHale, Washington, D.C., 05.15.2024
- Webinar, 05.07.2024
- Nashville, TN, April 15-17, 2024
- Sheraton Grand Seattle, Seattle, WA, 03.22.2024
- 03.19.2024
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News
- 03.03.2025JD Supra
- 02.18.2025
- 02.13.2025Chambers Global
- 01.13.2025
- 12.11.2024Global Competition Review
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- 09.17.2024
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- 08.16.2024Best Lawyers
- 06.12.2024Legal 500 US
- 06.06.2024Chambers USA
- 05.21.2024
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- 04.22.2024Super Lawyers
- 03.27.2024Legal 500 Belgium
- 03.14.2024Chambers Europe
- 03.04.2024JD Supra
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