Jessica Lewis is a Silicon Valley-based litigator specializing in high-stakes securities litigation, complex class actions and corporate governance disputes. Her strategic insight and trial-readiness make her a trusted advocate for organizations navigating significant legal challenges. Jessica’s career blends expertise, innovation and a results-driven approach to deliver exceptional outcomes for her clients. 

Securities Litigation Expertise 

Early in her career, Jessica played a leading role in defending the embattled blood-testing technology company, Theranos, in numerous investor class actions. Despite the odds, Jessica and her team successfully defeated numerous investors’ attempts to certify class actions against the company. Since then, she has leveraged her securities law and corporate governance expertise to handle disputes involving shareholder derivative claims, regulatory actions and governance challenges.

Jessica also has extensive experience with Delaware law, addressing mergers-related challenges and governance disputes in the country’s most prominent corporate law jurisdiction. She is skilled in unraveling regulatory matters and managing high-stakes securities fraud class actions. Known for her precision and strategic advocacy, Jessica delivers impactful results in even the most complex cases.

Complex Class Action Expertise and Trial Advocacy 

Jessica’s practice extends to managing complex class actions, including cases involving claims under RICO, California’s Unfair Competition Law (UCL), federal securities laws and state consumer protection statutes. She has successfully navigated class actions with overlapping state and federal claims, employing innovative strategies to address procedural challenges and resolve disputes effectively. Her ability to simplify complex legal frameworks and manage multi-jurisdictional disputes has been critical to achieving favorable outcomes.

Her trial-readiness is a cornerstone of her practice. Early in her career, Jessica served as a Special Assistant District Attorney, where she first-chaired 15 trials and over a dozen hearings, gaining invaluable courtroom experience. This foundation sharpened her advocacy skills and informed her approach to high-stakes trials, where her leadership has been instrumental in resolving lengthy regulatory disputes and bet-the-company litigation. Since then, Jessica has applied this experience to lead multi-month trials involving complex discovery processes, cross-examinations of key witnesses and high-pressure courtroom dynamics. Her ability to craft compelling narratives, manage intricate procedural hurdles and collaborate effectively with trial teams has consistently delivered favorable outcomes for her clients in class actions, securities disputes and regulatory enforcement matters.

Jessica’s ability to present persuasive arguments, maintain composure in high-pressure proceedings and develop winning trial strategies underscores her value as a litigator adept at delivering results both in and out of the courtroom.

Commitment to Pro Bono 

Jessica is deeply committed to using her legal expertise to drive systemic change and champion social justice. She has played a pivotal role in landmark initiatives, including an extraordinary writ petition challenging California’s death penalty under the state’s Equal Protection guarantees. Her contributions were instrumental in shaping the petition’s legal arguments and addressing systemic racial disparities in the justice system.

Jessica has also achieved meaningful outcomes in individual pro bono cases, including securing a rare jury verdict with punitive damages in a First Amendment retaliation case. Beyond her casework, she leads and mentors teams on pro bono projects, ensuring her dedication to justice inspires and empowers the next generation of attorneys.

Thought Leadership and Advocacy 

Jessica is a recognized thought leader and sought-after speaker on securities law and the legal profession. She publishes widely on key industry topics, including federal forum selection clauses, cryptocurrency litigation trends and emerging issues in securities law. Her writing consistently provides practical guidance and shapes conversations on significant legal developments.

In addition to her legal insights, Jessica actively advocates for workplace equity and gender inclusivity. She advises on firm policies to support working parents, champions mentorship programs for underrepresented attorneys and consults on initiatives aimed at fostering inclusion. Her leadership reflects her belief in creating a more inclusive and just legal community, which has earned her formal recognition, including the Mentor & Mentee Collaboration award from Corporate Counsel’s 2024 Women, Influence and Power in Law Awards.

Jessica’s dedication to bridging legal theory with practice is exemplified by her annual guest lectures at Harvard Law School, where she shares her insights on strategic discovery practices and complex litigation.

Recognition

  • Named to the Daily Journal’s 2024 Top 40 Under 40 list.
  • Recognized in the Mentor & Mentee Collaboration Category of Corporate Counsel’s 2024 Women, Influence and Power in Law Awards.
  • Selected for inclusion in Best Lawyers: Ones to Watch in the area of commercial litigation (20222024) and securities litigation in 2022.
  • Named a Northern California Super Lawyers "Rising Star" in 2023 in the area of securities litigation.

Insights & News

Credentials

  • Education

    • JD, Harvard Law School, 2012

      cum laude Advising Committee Chair, Board of Student Advisers, Line Editor, Harvard International Law Journal
    • BA, Public Policy and Hispanic Studies, Hamilton College, 2007

      summa cum laude Phi Beta Kappa
  • Admissions

    • Massachusetts

    • California

    • New York

  • Clerkships

    • The Hon. Patti B. Saris, US District Court for the District of Massachusetts, 2013 - 2014

Credentials

Notice

Unless you are an existing client, before communicating with WilmerHale by e-mail (or otherwise), please read the Disclaimer referenced by this link.(The Disclaimer is also accessible from the opening of this website). As noted therein, until you have received from us a written statement that we represent you in a particular manner (an "engagement letter") you should not send to us any confidential information about any such matter. After we have undertaken representation of you concerning a matter, you will be our client, and we may thereafter exchange confidential information freely.

Thank you for your interest in WilmerHale.