Weil, Gotshal & Manges LLP

Weil, Gotshal & Manges LLP

Client Satisfaction

Lawyers

Diane Sullivan

Position

Partner

Career

Diane Sullivan is a renowned trial attorney, specializing in “first-of-kind,” “bet-the-company,” or otherwise high-profile matters that have garnered extensive media coverage across a range of practice areas and industries. She is routinely retained as lead trial counsel in high-stakes litigations. Diane has successfully tried cases for Fortune 500 companies in complex commercial, mass tort, class action, antitrust, patent, and environmental litigations in jurisdictions around the U.S. She has represented some of the biggest, most recognizable companies across industries, including Johnson & Johnson, Altria, AstraZeneca, Baxter Healthcare Corporation, Campbell Soup Company, ESPN, ExxonMobil, Frontier Communications, General Electric, GlaxoSmithKline, Merck, Philip Morris USA, Procter & Gamble, Repsol, SAC Capital, Sanofi, Toyobo, and Walgreens.

Memberships

New Jersey Bar; New York Bar; DC Bar; admitted to practice before several federal courts.

Education

Fairfield University (BA, 1984); University of Pennsylvania Law School (JD, 1987).

Mentions

Dispute resolution • United States

General commercial disputes

Hall of fame
Dispute resolution • United States

Leading trial lawyers

Dispute resolution • United States

Product liability, mass tort and class action - defense: consumer products (including tobacco)

Leading partner
Dispute resolution • United States

Product liability, mass tort and class action - defense: pharmaceuticals and medical devices

Hall of fame
Dispute resolution • United States

Product liability, mass tort and class action - defense: toxic tort