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Department profile

Securities: Litigation

USA Guide 2026 : USA - Nationwide

About

Provided by WilmerHale

For decades, market participants, corporate clients and individuals have turned to WilmerHale’s experienced lawyers to navigate the complex universe of securities laws and rules of corporate governance actively litigated by government agencies, regulatory bodies and private parties. We have vast experience defending federal and state securities claims alleging fraud, violations of prospectus and other disclosure obligations, breach of fiduciary duty, corporate misconduct, and insider trading, and have helped clients address challenges involving mutual fund trading and marketing, restatements, broker-dealer duties to clients and counter-parties, and regulatory obligations. We are recognized nationally for our defense of major class actions, having secured the early dismissal of countless cases and defeated class certification or obtained summary judgment in many others. Our proven track record includes notable successes in litigation arising from US Securities and Exchange Commission (SEC) enforcement matters and in the resolution of Financial Industry Regulatory Authority (FINRA) arbitration.

To learn more, visit: https://www.wilmerhale.com/en/solutions/securities-litigation

Chambers Review

Provided by Chambers

Securities: Litigation - USA - Nationwide

Band 2

What the Team is Known For

WilmerHale boasts a solid securities litigation practice covering all aspects of the practice area, including securities class action, derivative suits and M&A litigation. It draws upon its outstanding capability in regulatory and white-collar matters to hold an impressive record in cases involving allegations of insider trading, breaches of fiduciary duty and corporate misconduct. The firm frequently represents corporate issuers, with a notable focus on life sciences and technology companies.

Notable practitioners

New York- and Boston-based Michael Bongiorno and DC-based Matthew Martens are key contacts in the department.

View ranking table

Work Highlights

Provided by Chambers

WilmerHale represented Norfolk Southern and certain of its current and former officers and directors in a securities class action in which plaintiffs asserted claims under Sections 11 and 15 of the Securities Act of 1933.

Strengths

Provided by Chambers

The team provides amazing client service and guidance. It is on top of everything and achieves fantastic outcomes.
Securities: Litigation respondentUSA
The WilmerHale team is exceptional. It is efficient, straightforward and pragmatic, providing clear guidance to clients. Its depth of experience is a key strength, enabling it to provide concrete instructions on how to work through the matter and practical solutions. The firm's client service is also excellent; it is very attentive and efficient.
Securities: Litigation respondentUSA
WilmerHale is very knowledgeable and experienced. The team is calming, reasonable, practical and business-oriented. The firm provides excellent client service and is prepared to assist us in making decisions, going beyond just outlining our options. Every member of the team is excellent and very responsive, from senior partner to more junior partners and associates.
Securities: Litigation respondentUSA
WilmerHale has the scale and resources to tackle complex matters, coupled with the deep experience and litigation chops to actively defend corporate clients.
Securities: Litigation respondentUSA
WilmerHale's lawyers are experts and incredibly responsive. I have a lot of trust in the firm for our most complicated matters as well as trust in its advocacy.
Securities: Litigation respondentUSA

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