Jason J. Mendro is a litigation partner in the Washington, D.C. office of Gibson, Dunn & Crutcher. Mr. Mendro has extensive experience defending class and derivative action lawsuits at the trial and appellate level. He is ranked as a leading (Band 1) lawyer in Securities Litigation by Chambers USA: America’s Leading Lawyers for Business 2022, and has earned national recognition, being named “Litigator of the Week” by The American Lawyer and a “Rising Star” by Law360 and Super Lawyers. Mr. Mendro defends a broad spectrum of commercial litigation. He represents companies and their directors and officers in wide-ranging shareholder disputes, including securities class actions, challenges to mergers and acquisitions, and derivative lawsuits. He advises boards of directors and special litigation committees in conducting internal investigations and addressing shareholder litigation demands. He also defends challenges to investment services and products, data breach litigation, and claims under the Racketeer Influenced and Corrupt Organizations Act, the False Claims Act, the Employee Retirement Income Security Act, and the Fair Labor Standards Act. Mr. Mendro authors chapters of two leading litigation treatises, and he is a member of the Steering Committee of Gibson Dunn’s Securities Litigation Practice Group, which is consistently ranked as one of the top securities litigation practices in the country.