Overview
An experienced commercial litigator, Amanda MacDonald serves as co-Chair of Williams & Connolly’s Securities Litigation and Enforcement practice groups, and is a leader in the firm’s investigations practice. Amanda has appeared in federal and state appellate and trial courts around the country, representing Fortune 100 issuers, underwriters, Big 4 accounting firms, board committees, special litigation committees, directors and corporate officers in securities litigation, class actions, derivative actions, and investigations and enforcement actions.
In addition to her securities work, Amanda has extensive experience in commercial litigation and government, internal, and compliance investigations. She has guided major corporations, boards, directors and executives through intense and highly sensitive matters, in and out of the courtroom. She has led many internal investigations concerning whistleblower allegations, accounting irregularities, and personnel issues for a range of clients, including accounting firms, public companies, and corporate boards. Her recent investigations experience includes an investigation for a board committee of a public technology company, a large investigation for a Big Four accounting firm concerning regulatory matters, and an investigation for a public company regarding allegations relating to the workplace environment.
Chambers USA has recognized Amanda as a Band 1 “Litigation: Securities” specialist in the District of Columbia, describing her as a “well-regarded securities litigator who excels in shareholder derivative actions and securities class actions.” Chambers notes that she is “an outstanding writer and strategist,” and is “strategic, thorough, responsive and gets excellent results.” Chambers further notes she is “extremely knowledgeable, effective and a subject matter expert for all things securities.” Benchmark Litigation has named Amanda a Litigation Star since 2025, and she has been named among the “500 Leading Litigators in America” by Lawdragon since 2023. Additionally, The National Law Journal named Amanda a Litigation “Trailblazer” in 2021 in connection with her defense of an issuer in multi-jurisdictional securities class actions.
Amanda has spent her entire career at Williams & Connolly. She co-chairs the Firm’s Women’s Initiative, a group she co-founded in 2015.

