Professional Biography
Photo of Adam Mandelsberg
  • New York

    D +1.212.261.6867

    F +1.212.399.8067

    New York

    1155 Avenue of the Americas, 22nd Floor

    New York, NY 10036-2711

    +1.212.261.6867

    AMandelsberg@perkinscoie.com

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Overview

Adam Mandelsberg prosecutes and defends high-stakes litigation on behalf of public companies, financial institutions, sports leagues and player agents, and individuals in federal and state courts nationwide. His experience includes the successful defense of a wide range of product manufacturers accused of fraud and other business torts, including those in the food and beverage, dietary supplement, and pet product industries. Adam also litigates on behalf of the nation’s leading service providers, including pioneering technology platforms, colleges and universities, and testing companies.

Adam represents businesses in a wide range of commercial disputes, including breaches of supply and license agreements, disputes related to corporate mergers and acquisitions, and various business torts. He also advises directors and shareholders on cutting-edge issues of corporate law, including alleged breaches of fiduciary duty and petitions for director removal and corporate dissolution.

Illustrative of his creativity and commitment to resolving bet-the-company disputes efficiently and to his clients’ satisfaction, Adam successfully defended a global financial institution accused of fraud in connection with a rogue trader’s scheme to disguise hundreds of millions of dollars in losses. He also successfully represented a London-based interdealer broker in a lawsuit alleging racketeering and unfair competition against a competitor in connection with its worldwide raid of the firm’s profit centers. Adam also secured the dismissal of investors’ claims in a decade-long securities-related class action lawsuit on behalf of a leading pharmaceutical company and resolved a securities-related class action lawsuit on behalf of a former executive of a leading cannabis manufacturer.

In addition, Adam has represented a wide range of pro bono clients, including a New Yorker who claimed that law enforcement agents engaged in unlawful and excessive force in the course of his arrest at his own home, a Texas death row prisoner seeking to overturn his conviction and sentence in federal court, teenage children seeking review of a New York Family Court’s finding that their parent’s abuse of alcohol constituted neglect, public housing residents seeking much-needed repairs to their apartments, and Central American migrants challenging adverse credible fear determinations and seeking recompense for their unlawful separation from minor children by U.S. agents.

Adam clerked for the Hon. Jane R. Roth of the U.S. Court of Appeals for the Third Circuit. While in law school, Adam was an associate editor of the Journal of Transnational Law and interned for the Office of the U.S. Solicitor General (DOJ), where he helped prepare the solicitor general for appellate court arguments concerning the constitutionality of the Affordable Care Act (ACA). He also served as an extern to the Hon. Robert D. Sack of the U.S. Court of Appeals for the Second Circuit and as an intern to the Hon. J. Paul Oetken of the U.S. District Court for the Southern District of New York.

Professional Recognition

  • Recognized by Best Lawyers: Ones to Watch for Commercial Litigation, 2024
  • Recognized as a "New York Rising Star" by Super Lawyers, 2023
  • Recognized as a “40 Under 40” by Crain’s New York Business, 2021
  • American Bar Foundation, Fellow

Related Employment

  • Paul, Weiss, Rifkind, Wharton & Garrison LLP, New York, NY, Litigation Associate, 2015 – 2018
  • Schulte Roth & Zabel LLP, New York, NY, Litigation Associate, 2013 – 2014

Clerkships

  • Hon. Jane R. Roth, U.S. Court of Appeals for the Third Circuit, 2014 - 2015

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Bar and Court Admissions

  • New York
  • New Jersey
  • U.S. Court of Appeals for the Second Circuit
  • U.S. Court of Appeals for the Third Circuit
  • U.S. District Court for the Southern District of New York
  • U.S. District Court for the Eastern District of New York
  • U.S. District Court for the District of New Jersey

Education

  • Columbia Law School, J.D., James Kent Scholar, Harlan Fiske Stone Scholar, 2013, Assistant Executive Editor, Journal of Transnational Law
  • University of Pennsylvania, B.A., magna cum laude, 2010, Phi Beta Kappa

Languages

  • Spanish