Pat Pascarella is an antitrust lawyer and strategist trusted by companies and government entities. Over the course of his career, Pat has played central roles in some of the most significant antitrust litigations and appellate victories of the modern era, including United States v. Microsoft and Supreme Court victories such as Bell Atlantic v. Twombly and Pacific Bell v. linkLine—cases that continue to shape how antitrust claims are framed, litigated, and resolved in the digital economy.
Pat brings a rare combination of government enforcement experience, in-house executive leadership, and private practice strategy. He served as Chief Antitrust Counsel at AT&T, led investigation and litigation teams at the U.S. Department of Justice Antitrust Division, and was a partner at major law firms, including chair of the antitrust practice at one leading firm. He is regularly entrusted with high stakes matters, including his recent retention by the California Attorney General’s Office as trial counsel in a significant price-fixing prosecution.
Pat represents companies facing government investigations, regulatory scrutiny, and civil and criminal enforcement by the DOJ, FTC, state attorneys general, and international competition authorities. His work has led to decisive outcomes, including the complete revocation of a billion-dollar abuse-of-dominance fine imposed by Mexico’s antitrust authority against América Móvil’s TelCel.
His experience spans industries where antitrust and regulatory exposure are most acute, including telecommunications, digital platforms, technology, AI and data infrastructure, cybersecurity, energy, pharmaceuticals, and manufacturing. His clients have included global market leaders such as AT&T, América Móvil, Ericsson, and News Corp, as well as sovereign entities and state governments.
He has written and counseled on the evolution of platform litigation and emerging antitrust theories targeting closed digital ecosystems, including analyses of how regulators and private plaintiffs are attempting to reshape competition in technology markets.
Known for combining litigation strength with strategic judgment, Pat advises clients not only on the law itself, but on how regulators, courts, and enforcement bodies make decisions in defining commercial, political, and reputational moments.