Photo of Brette Tannenbaum

Brette Tannenbaum

Partner, Paul Weiss

+1-212-373-3852btannenbaum@paulweiss.com

1285 Avenue of the Americas
New York, NY 10019-6064

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A partner in the Litigation Department at Paul, Weiss, Tannenbaum serves as Co-Chair of the Investment Funds Litigation Practice Group and Deputy Co-Chair of the Antitrust Practice Group. She represents clients in a broad range of complex commercial disputes, with particular focus on antitrust and unfair competition litigation, as well as litigation involving investment advisors and their portfolio companies.

Lawdragon Honors

Honor Year Practice
The 2026 Lawdragon 500 Leading Global Entertainment, Sports & Media Lawyers 2026 Litigation - Sports, Antitrust, Entertainment, Media
The 2026 Lawdragon 500 Leading Global Antitrust & Competition Lawyers 2026 Antitrust Litigation
The 2026 Lawdragon 500 Leading Litigators in America 2026 Antitrust Litigation
The 2025 Lawdragon 500 X – The Next Generation 2025 Litigation, Antitrust, Financial
The 2025 Lawdragon 500 Leading Global Entertainment, Sports & Media Lawyers 2025 Litigation - Sports, Antitrust, Entertainment, Media
The 2025 Lawdragon 500 Leading Global Antitrust & Competition Lawyers 2025 Antitrust Litigation
The 2025 Lawdragon 500 Leading Litigators in America 2025 Antitrust Litigation
The 2024 Lawdragon 500 X – The Next Generation 2024 Commercial Litigation, esp. Antitrust
The 2024 Lawdragon 500 Leading Litigators in America 2024 Antitrust Litigation
Lawdragon 500 X – The Next Generation 2023 Commercial Litigation, esp. Antitrust
Lawdragon 500 Leading Litigators in America 2022 Antitrust Litigation

Brette’s significant representations include:

  • Blackstone and its hedge fund division in multiple state and federal court actions arising out of the Kentucky state pension system’s decision to invest in funds of hedge funds, including the successful dismissal of a $50 billion derivative claim on appeal to the Kentucky Supreme Court;
  • The Boston Bruins in an independent review of its player vetting process;
  • Coupang, Inc., an e-commerce firm known as “Korea’s Amazon,” and certain directors and officers in winning the dismissal, with prejudice, of a securities class action alleging material misrepresentations and omissions in the registration statement issued in connection with Coupang’s 2021 IPO;
  • General Electric in a billion dollar trade secrets misappropriation lawsuit against a direct competitor in the gas turbine industry;
  • International Swimming League (ISL) in an antitrust action asserting price-fixing and group boycott claims against competitor World Aquatics for threatening to sanction swimmers who participated in ISL events, including winning a reversal of the trial court’s award of summary judgment for World Aquatics;
  • The Kraft Group and its subsidiaries in several complex commercial disputes;
  • Major League Baseball in a putative antitrust class action involving the sale of MLB licensed products in third-party online marketplaces;
  • Mastercard in several of the largest antitrust class action litigations nationally arising out of the fees and rules governing merchants’ acceptance of payment cards;
  • The National Football League in various matters, including a putative class action alleging racial discrimination in the hiring and retention of head coaches and senior executives;
  • News Corporation and certain subsidiaries in the favorable resolution of multiple antitrust litigations, including class action and competitor lawsuits involving claims of exclusive dealing and monopolization, as well as the dismissal of unlawful bundling and tying claims following an evidentiary hearing before a panel of antitrust expert special masters;
  • Northwestern University in an independent review of the processes to detect and respond to potential misconduct in its Athletic Department, following allegations of hazing and bullying in certain of its athletic programs;
  • The Philadelphia 76ers in an internal investigation relating to the use of certain anonymous Twitter accounts to post information concerning the club, its personnel and related topics;
  • The Ultimate Fighting Championship (UFC) in high-profile antitrust class actions involving monopsony and exclusive dealing claims brought by a class of 1,200 former mixed martial artists;
  • Wafra Inc. in a variety of matters, including the favorable resolution of multiple employment discrimination actions brought by former employees;
  • Chip Wilson, the founder and former CEO of lululemon athletica, in the dismissal of securities fraud class action and derivative litigation concerning disclosures of product recalls;
  • World Wrestling Entertainment (WWE) in the favorable resolution of an antitrust action brought by competitor Major League Wrestling involving the sale and licensing of media rights for professional wrestling programming.

Brette also maintains an active pro bono practice focused on post-conviction appeals in capital cases. She recently first chaired an evidentiary hearing on behalf of a death row inmate in Alabama.