Jesse M. Weiss has a broad litigation practice, with a particular focus on antitrust, including antitrust litigation, regulatory work and antitrust counseling.
Lawdragon Honors
| Honor | Year | Practice |
|---|---|---|
| The 2026 Lawdragon 500 Leading Litigators in America | 2026 | Antitrust Litigation, Regulatory |
| The 2025 Lawdragon 500 Leading Litigators in America | 2025 | Antitrust Litigation, Regulatory |
| The 2025 Lawdragon 500 Leading Global Antitrust & Competition Lawyers | 2025 | Antitrust Litigation, Regulatory |
Weiss’s representative matters include:
Antitrust Litigation
- Representing Live Nation in antitrust litigation filed by the U.S. Department of Justice (DOJ), 39 states and the District of Columbia seeking to break up Live Nation/Ticketmaster.
- Representing Elsevier in putative class action antitrust litigation filed in New York federal court alleging collusion among Elsevier and the world’s other largest for‑profit publishers of peer‑reviewed scholarly journals in violation of Section 1 of the Sherman Act.
- Representing Corteva in antitrust litigation brought by the FTC and 12 state attorneys general challenging certain of its rebate pricing programs as anticompetitive, as well as more than two dozen related putative class actions, centralized in North Carolina federal court, filed in the wake of the FTC’s complaint.
- Representing Louis Dreyfus Company in multiple putative class action antitrust cases that have been coordinated as part of multidistrict litigation (MDL) in Minnesota concerning an alleged conspiracy related to the price of refined sugar in the U.S.
- Represented Illumina in an administrative challenge brought by the Federal Trade Commission (FTC) concerning Illumina’s $8 billion acquisition of GRAIL, a healthcare company developing a cancer screening test for 50 cancer types. The FTC’s Chief Administrative Law Judge ruled in favor of Illumina and rejected the FTC’s challenge to the merger.
- Represented Amgen in successfully defending against an FTC challenge to its $27.8 billion acquisition of Horizon Therapeutics, the largest in Amgen’s history. Amgen secured a consent order that ended all litigation and cleared the path for the deal to close. In connection with this victory, the Cravath team was recognized as The Am Law Litigation Daily’s “Litigators of the Week.”
- Represented Tesla in consolidated putative class action antitrust litigation alleging it has monopolized access to parts and services needed to repair its vehicles, resulting in significant delays and supracompetitive pricing for Tesla vehicle maintenance.
- Represented American Express (“Amex”) in several antitrust litigations in New York federal court. Mr. Weiss previously represented Amex in a civil action brought by the DOJ and 17 state attorneys general. The case culminated in a nearly two‑month bench trial, which was followed by successful appeals in favor of Amex in both the Second Circuit and the Supreme Court.
Regulatory Clearance
- Representing Illumina on antitrust issues in connection with its pending acquisition of SomaLogic, and previously represented Illumina on all antitrust issues in connection with its $8 billion acquisition of GRAIL.
- Represented PepsiCo on regulatory matters in connection with its $1.95 billion acquisition of poppi.
- Represented Star Bulk Carriers on antitrust issues in connection with its $2.1 billion combination with Eagle Bulk Shipping.
- Represented Cisco Systems on antitrust issues in connection with its $28 billion acquisition of Splunk.
- Represented CymaBay Therapeutics on antitrust issues in connection with its $4.3 billion acquisition by Gilead Sciences, Inc.
- Represented Altra Industrial Motion Corp. on antitrust issues in connection with its $5 billion acquisition by Regal Rexnord Corporation.
- Represented Atlas Air Worldwide Holdings on antitrust issues in connection with its $5.2 billion acquisition by an investor group led by funds managed by affiliates of Apollo Global Management.
- Represented Occidental Petroleum Corporation on antitrust issues in connection with its $57 billion acquisition of Anadarko Petroleum Corporation.
- Represented Barrick Gold Corporation in connection with the formation of a joint venture with Newmont Mining Corporation to combine their respective mining operations, assets, reserves and talent in Nevada.
- Represented Orbotech Ltd. in connection with its $3.4 billion acquisition by KLA-Tencor Corporation.
- Represented AveXis, Inc. in connection with its $8.7 billion acquisition by Novartis AG.
- Represented Alere Inc. in connection with its $8 billion sale to Abbott Laboratories.
- Represented Cameron International Corporation in connection with its $15 billion acquisition by Schlumberger Limited.
- Represented Delhaize Group in connection with its $29 billion merger with Royal Ahold N.V.
- Represented H.J. Heinz Company and 3G Capital in connection with Heinz’s $60 billion merger with Kraft Foods Group to form The Kraft Heinz Company.
- Represented RELX Group in connection with its acquisition of Aries Systems, its acquisition of Safe Banking Systems, its acquisition of ThreatMetrix, its acquisition of bepress and its acquisition of Appriss’s Crash and Project business group.
