July 10, 2026

BakerHostetler

Knowles

Sean Knowles has joined BakerHostetler's Seattle office as a partner in the firm's Litigation Practice Group and a member of the Securities and Governance Litigation team.

Knowles joins from an Am Law 100 firm, where he served as the firm-wide chair of the securities litigation practice. He has experience representing clients in securities class action litigation, shareholder derivative lawsuits, mergers and acquisitions litigation and U.S. Securities and Exchange Commission enforcement proceedings and investigations.

With a career spanning nearly 30 years, and nationally recognized by Chambers USA and Best Lawyers in America, Knowles is adept at defending securities class actions and shareholder derivative actions against public companies of all sizes in a wide range of industries.

Knowles helps public companies, officers and directors navigate high-stakes shareholder and regulatory matters. Clients turn to him to defend securities class actions, shareholder derivative litigation, merger and acquisition disputes, SEC enforcement actions and investigations and claims under the Washington State Securities Act, as well as to provide practical guidance on corporate governance issues.

Knowles began his career in New York. Since 2007, he has been based in Seattle. He received his A.B. from Brown University and his J.D. from Columbia Law School.

BakerHostetler has six core practice groups — Business, Digital Assets and Data Management, Intellectual Property, Labor and Employment, Litigation, and Tax — and more than 1,000 lawyers coast to coast.