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Clients with major transactions routinely face shareholder and other litigation seeking to block or enforce a deal. As experienced and business-savvy litigators, we are able to fend off many such cases, often breaking new legal ground in the process.



Our M&A Litigation Group has been highly commended for its work.

  • The American Lawyer
    • Recognized by The American Lawyer's "Litigator of the Week" program several times for significant transaction-related disputes in the Delaware Court of Chancery, including:
      • Litigation partner Jaren Janghorbani recognized in a February 2022 “Litigation Daily” column for her victory on behalf of Nuance Communications in securing the dismissal of a shareholder lawsuit and related motion for attorney’s fees brought in connection with Microsoft’s acquisition of Nuance.
      • Litigation partners Andrew Gordon and Jaren Janghorbani named "Litigators of the Week" runners-up in August 2021 for a trail win for Inc. in its lawsuit against Ipreo Holdings and HIS Markit Ltd.
      • Litigation partners Andrew Gordon and Jaren Janghorbani named "Litigators of the Week" in December 2019 in recognition of a trial victory for Channel Medsystems in a high-stakes merger litigation. 
      • Litigation partner Lew Clayton named "Litigator of the Week" in December 2018 in recognition of a trial victory on behalf of Fresenius SE & CO. in a seminal merger litigation that marked the first time the Delaware Court of Chancery found a material adverse event occurred in connection with an acquisition.
  • Law360
    • 2022: Paul, Weiss was named a "Regional Powerhouse" in Delaware for its pivotal work handling some of the biggest, most high-profile matters in the state
  • Chambers USA 2023
    • Chancery (DE) – Leading Firm
      • "Paul, Weiss, Rifkind, Wharton & Garrison boasts a significant practice in the space. It has a deep bench of strong attorneys who are adept at handling disputes arising from M&A. The team also has notable experience of acting on behalf of clients in high-profile derivative actions. The group is also renowned for its ability to advise clients on complex corporate governance matters"
  • The Legal 500 US 2023
    • M&A Litigation: Defense – Tier 1
    • Four attorneys recognized in the "Leading Lawyers" group
      • "Paul, Weiss 'is a premier firm for M&A defense, highly respected and very professional' and clients praise the litigators for 'their vigor, their insight and their experience'.

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