Lloyd Winawer, a partner in Goodwin's Securities Litigation and White Collar Defense Groups, has been recognized as a Northern California “Super Lawyer” for his work on complex litigation and arbitration with a focus on securities and investment-related disputes. His work includes shareholder class actions, derivative lawsuits, M&A litigation, ERISA litigation, and SEC investigations and enforcement proceedings. He also represents clients in matters involving claims for breach of contract, misrepresentation, violation of consumer protection statutes, unfair competition and other business torts.

Mr. Winawer’s practice is national in scope. He has represented corporations and individual clients in more than 50 shareholder class action and derivative cases in federal and state courts throughout the country, including actions brought in Arizona, California, Colorado, Florida, Illinois, Massachusetts, Missouri, New York, Nevada, Texas and Utah. Mr. Winawer successfully obtained the dismissal with prejudice of the claims in several of these cases.





Mr. Winawer has represented clients in diverse industries, including apparel and clothing, financial services, film, life sciences, mining, mortgage lending, technology, transportation and venture capital. Representative clients include Countrywide Financial, Swift Transportation, America West Airlines, The North Face, Silicon Graphics, Sigma Designs, SMART, Modular and Applied Biosystems.

Representative Matters



  • Former chairman and CEO of multi-billion dollar government contractor in securities class action and derivative litigation arising out of municipal project billing scandal. All claims dismissed.
  • Successful defense of publicly traded airline and its directors and officers in federal securities class action arising out of the then largest FAA fine related to alleged aircraft maintenance practices. Obtained dismissal of plaintiff’s core claims at summary judgment following Ninth Circuit reversal in part of district court decision dismissing all claims with prejudice.
  • The nation’s largest trucking company and its founder in securities class action and separate breach of fiduciary duty litigation related to going private transaction. All claims dismissed.
  • The nation’s largest mortgage lender in numerous federal and state shareholder class and derivative actions.
  • An investment bank affiliate as plaintiff in multi-million dollar action involving termination of derivative transactions.
  • Shareholder representatives in post-closing disputes involving alleged breaches of representations and warranties in acquisition agreements.
  • Silicon Graphics and its directors and officers in leading case interpreting the Private Securities Litigation Reform Act of 1995 (In re Silicon Graphics Securities Litigation). Ninth Circuit affirmed dismissal of all claims.
Arbitration Awards
  • The successful defense of multi-million dollar indemnification claims arising out of merger transactions and recovery of attorney's fees.
  • The successful defense of a stock option dispute involving alleged damages in excess of $50 million.
  • An award requiring a medical device manufacturer to fully indemnify an asset seller against multiple customer claims for breach of contract and fraud following the closing of an asset purchase agreement.
Professional Activities

Mr. Winawer is a member of the American and San Francisco Bar Associations.

Professional Experience

Prior to joining Goodwin, Mr. Winawer was a partner for 10 years in the Palo Alto office of Wilson Sonsini Goodrich & Rosati.


Mr. Winawer has been selected as a Northern California “Super Lawyer” by Law & Politics magazine, and also was recognized by California Lawyer as one of California’s top 20 lawyers in 1999. While attending law school, he was the recipient of a Best Oral Advocate and Brief Writer Award in a national Moot Court competition.



Lettres de Créance



J.D., 1989
New York University School of Law
B.A., 1985
Brandeis University

(magna cum laude, Phi Beta Kappa)



New York


U.S. District Court for the Central District of California
U.S. District Court for the Northern District of California
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Our clients rely on us for world-class advisory services, counsel on complex transactional work and high-stakes litigation. Specializing in matters involving the financial, life sciences, private equity, real estate, and technology industries, we use a collaborative, cross-disciplinary approach to resolve our clients’ most challenging issues. To find out more, please contact us.
Unsere Kunden verlassen sich auf uns für erstklassige Beratungsdienste, beraten über komplexe Transaktionsarbeiten und High-Stakes-Prozesse. Spezialisiert auf Angelegenheiten der Finanz-, Life-Sciences-, Private-Equity-, Immobilien-und Technologie-Industrie, verwenden wir eine kooperative, interdisziplinäre Ansatz zur Lösung unserer Kunden am schwierigsten Fragen. Um mehr zu erfahren, kontaktieren Sie uns bitte.

Nos clients comptent sur nous pour des services de conseil de classe mondiale, des conseils sur le travail transactionnel complexe et des litiges à enjeux élevés. Spécialisés dans les domaines de la finance, des sciences de la vie, du capital-investissement, de l'immobilier et de la technologie, nous utilisons une approche collaborative et interdisciplinaire pour résoudre les problèmes les plus complexes de nos clients. Pour en savoir plus, contactez-nous.


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