Weil, Gotshal & Manges LLP

Litigation Department

New York
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What the team is known for Longstanding commercial litigation practice that is held in high regard for the breadth of its industry expertise. Acts for clients such as insurers, media and entertainment companies and financial institutions on trade secrets disputes, IP litigation, antitrust proceedings and wider class actions. Offers a dedicated securities group whose expertise includes class actions, as well as M&A litigation and corporate governance disputes. Draws on a wealth of experience practicing before the Delaware Court of Chancery.

Strengths Interviewees describe this as "a really good litigation group," adding: "Their results corroborate their preeminence in this field."

"They're very good in the courtroom, very prepared and they do what judges like you to do - they only bring what requires the court's attention," states a client. They go on to note that "the service is top-notch."

Another source states: "My experience with Weil was first-rate. Their work product was consistently outstanding, and they provided outstanding representation, advice and counsel."

Work highlights Defended Sanofi against federal class and individual securities actions brought by contingent value rights holders. Plaintiffs claimed they were harmed by misleading statements concerning the clinical trial and FDA approval prospects for a multiple sclerosis drug.

Brought a breach of contract suit against IBM on behalf of Nuance Communications. The client paid $25 million for a license to IBM’s Watson software plus all subsequent updates for ten years, but IBM did not deliver on the latter.

Notable practitioners


David Lender
is described by clients as "a powerhouse" and regularly handles large contract cases and bankruptcy litigation, as well as antitrust and consumer class actions. "He is fantastic in his work ethic and his mastery of the details is excellent," states one source, while another adds that "he can distill complex concepts in front of a jury and thinks three steps ahead - he's the best."


John Neuwirth
is described by sources as "a real superstar." He acts for clients in numerous securities class actions, M&A litigation and cases alleging breaches of fiduciary duty. A source comments: "He shows deep ownership of his matters and masters the details. His advice is deeply grounded, practical and credible." 

The "spectacular"
Jonathan Polkes
represents leading corporate issuers, banks and other investment funds in high-level securities litigation, as well as in regulatory and commercial disputes. A client describes him as "amazing in court and in mediations," while another says: "He is very creative and business-savvy, and has a great command of how cases ought to be run."


Joseph Allerhand
is regarded by commentators as an "absolutely top-shelf" litigator. He acts across an impressive breadth of securities disputes, including class actions, M&A cases and corporate governance litigation. A client describes him as "a master strategist who excels in oral and appellate arguments."


Yehudah Buchweitz
earns impressive reviews from clients for his work in major antitrust class actions, shareholder disputes and various other civil claims. "He's just phenomenal," states a source. "He's very pragmatic, realistic and gives a good risk assessment. He's also very impressive in the courtroom."