Antitrust 2026 and Beyond: A Global Outlook on Competition Enforcement

Join members of Arnold & Porter’s Antitrust/Competition practice for a four-part webinar series exploring the shifting competition enforcement landscape in the United States and around the world. We will examine the most significant antitrust developments of 2025, assess how the new U.S. administration has reshaped enforcement priorities, and analyze how international antitrust authorities are expanding their reach. For businesses operating globally, these converging forces are creating a regulatory environment that is more complex, more fragmented, and demands closer attention than ever.

Featuring partners and counsel from our U.S., London, and Brussels offices, this series will provide a forward-looking assessment of where antitrust enforcement is headed across key areas, including mergers, cartel and criminal enforcement, and litigation. Our lawyers will offer practical insights to help businesses understand recent developments, anticipate risks, align strategy, and navigate competition issues in 2026 and beyond.

Part I: Competition Policy Under the Trump Administration: What Has Changed — and What Hasn’t

This session will examine the Trump administration’s approach to antitrust enforcement and its implications for businesses today. Our panel will discuss which Biden-era mergers and conduct policies have been retained or abandoned, as well as how the administration’s enforcement priorities align with or diverge from those of global competition authorities. The discussion will conclude with a look at where antitrust policy in the U.S. is headed in the coming years.

Upcoming Webinars

Part II: Mergers & Acquisitions — Navigating Deal Risk in a Shifting Global Enforcement Environment
Thursday, February 19 | 11 a.m.-noon ET

This program will examine recent U.S. and global antitrust developments affecting M&A activity, with a focus on what dealmakers should expect going forward. Drawing on recent challenges and regulatory actions, our panel will discuss evolving enforcement trends, procedural and substantive risk, and the practical impact of the administration change on transaction strategy. We will also offer perspectives from both the EU and UK on cross-border transactions and coordination among competition authorities, helping companies better assess and manage global deal risk.

Jonathan Gleklen | Partner
William Efron | Partner
Yasmine Harik | Partner
Zeno Frediani | Counsel

Part III: Cartel and Criminal Enforcement — Emerging Risks and Global Coordination
Wednesday, February 25 | 11 a.m.-noon ET

Our speakers will provide an overview of the current landscape of antitrust cartel enforcement, highlighting recent investigations, policy developments, and enforcement trends in the U.S. and in Europe. The discussion will focus on current enforcement trends, changes in agency leadership and priorities, managing differences across global jurisdictions, and steps companies can take to proactively identify and mitigate emerging risks.

Part IV: Antitrust Litigation — Preparing for the Next Wave of Disputes
Tuesday, March 10 | 11 a.m.-noon ET

In the final session, Arnold & Porter’s antitrust litigators will analyze key litigation trends shaping the antitrust landscape. The panel will discuss recent case law, evolving theories of harm, and the potential impact of regulatory and enforcement shifts on private and government litigation. With insights from both U.S. and European perspectives, this program will help businesses prepare for future disputes and navigate increasingly complex antitrust litigation risks.