Client Alerts
As artificial intelligence (“AI”) transitions from a nascent technology into a central pillar of the global economy, public and private …
June 1, 2026
June 1, 2026 • 8-minute read
Overview
Greg represents companies in high-stakes private antitrust litigation and government investigations in the U.S. and around the world, with a particular focus on single-firm conduct issues. He also advises on cutting-edge state and federal antitrust and distribution and compliance issues, including licensing and use of intellectual property. He also has extensive experience opposing class certification in private antitrust and consumer protection class actions, including working extensively with economic and industry experts.
Represented U.S. technology company in competition investigations and litigation in the U.S., Europe, Russia, Korea, and Taiwan; team persuaded the Korean Fair Trade Commission and Taiwan Fair Trade Commission to dismiss complaints and close investigations
(N.D. Cal.) — Represented patent holder and chip manufacturer for advanced cellular technologies in competition investigations and litigation in the U.S., Japan, and Taiwan regarding FRAND licensing and related issues
(S.D.N.Y.) — Represented financial services firm in antitrust class action alleging manipulation of ISDAFIX financial benchmark
(D. Del. and California) — Represented microprocessor manufacturer in federal and state monopolization class actions, alleging exclusive dealing through loyalty discounts and other non-price conduct; team successfully opposed class certification in both federal and state court
(N.D. Cal) — Represented office equipment supplier in Kodak-type antitrust and RICO actions alleging monopolization of single-product aftermarket through fraudulent marketing practices
(D. Conn.) — Obtained voluntary dismissal of federal data privacy class action against office equipment supplier related to data retention practices for used equipment
(U.S. Court of Federal Claims) — Lead trial lawyer in government contracts and copyright litigation arising out of destruction of client’s property while part of a cultural exchange
Credentials
Education
- Georgetown University Law Center, cum laude, J.D., 2000
- University of California, Davis, B.A., with honors, 1997
Admissions
- California, District of Columbia, U.S. Court of Appeals for the Second Circuit, U.S. Court of Federal Claims, U.S. District Court for the Northern District of California
Recognitions
- Recognized, U.S. News & World Report and Best Lawyers 2017 Practice Group of the Year for Antitrust Law, Law360 2018 Practice Group of the Year for Antitrust
- Nominee: Concurrences’ Antitrust Writing Award (2015)
- Legal 500 U.S., Antitrust: Cartel, Civil Litigation/Class Action – Defense, and Merger Control, 2019
Insights
Articles
Litigating Tariff Refund Pass-On Class Actions: Lessons from Antitrust
Downstream purchasers—distributors, retailers, or end consumers—are now asking if they can claim a share of about $170 billion in potential …
March 25, 2026
March 25, 2026 • 1-minute read
Client Alerts
2025 Energy & Chemicals Antitrust Report
Vinson & Elkins’ 2025 Energy & Chemicals Antitrust Report details how antitrust enforcement under the second Trump administration has shifted …
January 13, 2026 •
January 13, 2026 • 1-minute read
Client Alerts
2024 Chemicals & Energy Antitrust Report
Vinson & Elkins’ 2024 Chemicals & Energy Antitrust Report details the antitrust approach expected under the upcoming Trump administration, with a focus on boosting oil and gas production.
January 16, 2025 • V&E Antitrust Update
January 16, 2025 • 1-minute read
Client Alerts
2023 Chemicals & Energy Antitrust Report
For companies in the energy and chemical sectors, the potential for antitrust scrutiny is an ever-present concern. The next round of enforcement inquiries is never further away than the next jump in commodity prices or the next consolidation wave. Especially under an enforcement-minded administration, companies should stay focused on timely transaction planning and routine compliance efforts to manage their antitrust-related risks.
January 11, 2024
January 11, 2024 • 1-minute read
