Andy Sumner is a Chambers-ranked attorney who counsels and defends public and private companies, D&Os, and financial industry professionals in M&A litigation, securities class actions, shareholder derivative suits, internal investigations, corporate governance matters, regulatory enforcement actions, and other high-stakes disputes. He has represented clients in state and federal courts and in arbitration and mediation throughout the country.
Andy was recognized by Chambers USA as a 2025 “Up and Coming” Securities Litigator and by Super Lawyers as a 2022, 2023, 2024, and 2025 Securities Litigation “Rising Star.” Clients have described him as “terrific lawyer” who is “very client-focused” and “very strong on all fronts.” Andy regularly speaks and publishes on M&A, D&O, securities, and corporate governance matters. For the last 10 years, he has authored the “Shareholder Litigation” chapter of Georgia Business Litigation, the definitive treatise on Georgia business law.
Andy graduated, magna cum laude, from the University of Tennessee Winston College of Law, where he served as a senior editor on Transactions: The Tennessee Journal of Business Law and graduated with a concentration in business transactions. He received a bachelor’s degree from The University of North Carolina at Chapel Hill, majoring in political science and minoring in history and African American studies.