LAWYER PROFILE
Sean Knowles

Sean Knowles

USA 2026

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Ranked in 1 practice area

About

Provided by Ashurst Perkins Coie – London, New York, Seattle, Sydney

Practice Areas

Securities Litigation

White Collar & Investigations

Class-Action Defense

Litigation

Regulated Gaming

Digital Media & Entertainment, Gaming & Sports

Interactive Entertainment

Career

NEW--Sean Knowles represents public companies and their officers and directors in shareholder class action litigation, merger and acquisition litigation, U.S. Securities and Exchange Commission (SEC) enforcement proceedings and investigations, and shareholder derivative lawsuits. He also has defended clients against claims under the Washington State Securities Act and has counseled companies and their officers and directors on corporate governance matters.

Sean's experience includes defending clients against shareholder class actions alleging securities fraud in federal courts. He litigated securities matters regarding the mortgage-related financial crisis, including the consolidated multidistrict litigation In re Washington Mutual, Inc. Securities, Derivative & ERISA Litigation in the U.S. District Court for the Western District of Washington.

Experienced in SEC and state attorneys general investigations, as well as shareholder books and records inspection demands, Sean also handles Financial Industry Regulatory Authority inquiries and substantiation of confidentiality requests under the Freedom of Information Act. He has advised clients on Foreign Corrupt Practices Act compliance and related corporate governance issues.

Ranked as a leading lawyer in Chambers USA, he won praise from clients for his "work ethic, attention to detail, responsiveness, and upbeat attitude."

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Litigation: General Commercial - Washington

Band 4
Band 4

Individual Editorial
Sean Knowles is adept in a wide array of securities actions and is regularly sought after by public companies, their officers and directors facing class actions and M&A litigation. He is chair of Perkins Coie's securities litigation practice.

Ranked Individuals at Ashurst Perkins Coie – London, New York, Seattle, Sydney (219)

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