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Professionals 554 results
Capabilities 89 results
Practice Area
Bankruptcy Litigation & Investigations
Large corporate bankruptcies and companies in financial distress often spawn a complex web of claims by lenders, trustees, debtors, creditors, creditors’ committees, investors, shareholders, and other constituents. Attorneys in Winston & Strawn’s complex commercial litigation group and special situations and restructuring group serve as trusted advisors and resolute advocates to protect clients’ business interests and assets in multifaceted Chapter 11 cases and bankruptcy-related disputes.
Practice Area
Securities, M&A & Corporate Governance Litigation
In today’s market, litigators with experience in securities, corporate governance, and M&A-related (collectively, “securities litigation”) matters need to leverage their broad experience to serve as both advocate and as counsel and strategist, focused on helping clients to overcome not just a legal issue but a collective business problem. Given the frequent interplay between things such as corporate-control transactions, public offerings, activist shareholders, the use of complex derivatives and other financial instruments, bad news impacting stock performance, regulatory inquiries and investigations, and insurance coverage, strategic and tactical litigation decisions can have a wide-ranging impact on the success of a given transaction, as well as on companies, their boards, senior management, and advisors.
Practice Area
For decades, Winston has represented a broad array of clients in the insurance industry, including some of the world’s largest and best-known insurers. Our prowess in and understanding of the insurance industry encompasses not only its products, practices, and services, but also the increasing challenges posed by a world increasingly characterized by a fast-evolving technological landscape as well as financial, political, and environmental instability. Accordingly, Winston’s lawyers are among the most sought-after in the industry—not only by companies currently facing high-stakes litigations and investigations, but by those looking to take preventive action now in order to mitigate and manage their risk in the future.
Experience 58 results
Experience
|January 27, 2026
Winston & Strawn secured a decisive victory for PayPal in an intellectual property dispute brought by Irish non-practicing entity Internet Payment Patents LTD (IPPL). Magistrate Judge Susan van Keulen of the Northern District of California entered final judgment in PayPal’s favor, finding all asserted patent claims ineligible under 35 U.S.C. § 101 and granting PayPal’s motion to dismiss without leave to amend.
Experience
|December 11, 2025
Winston Takes the Checkered Flag After “Massive Win” Settlement
Winston squared off in the W.D.N.C. against lawyers for NASCAR in an antitrust lawsuit brought on behalf of racing teams Front Row Motorsports Inc. and 23X1 Racing LLC—the team co-owned by Michael Jordan and driver Denny Hamlin—alleging monopolization of the market for premier stock car racing teams. On December 11, 2025, nine days into trial and the morning after the plaintiffs rested their case, the parties jointly announced a settlement. Jeffrey Kessler, Jeanifer Parsigian, and Danielle Williams were recognized by American Lawyer with its top “Litigator of the Week” honors on December 19, 2025, for this historic settlement.
Experience
|September 8, 2025
Winston represents a class of professional swimmers alleging World Aquatics (WA) violated antitrust laws by blocking their participation in the competing International Swimming League. After WA won summary judgment, Winston successfully appealed, arguing the court applied improper antitrust standards and wrongly denied certification of a damages class. In September 2024, the Ninth Circuit reversed both rulings, reviving all claims and issuing a landmark ruling on the possible application of the per se rule or quick look review to sports-associations rules. Am Law awarded Winston “Litigator of the Week” Runner-Up recognition for the win. In November 2024, the Ninth Circuit denied rehearing. In April 2025, the district court certified a damages class.
Insights & News 3,770 results
Seminar/CLE
|March 25, 2026
Sanctions, Arbitration, and Cross-Border Enforcement: Complex Intersections in Practice
We are pleased to host an exclusive panel session during Paris Arbitration Week, exploring the complex intersections of sanctions regimes, international arbitration, and cross-border enforcement. This program combines real-world case insights with comparative perspectives to help practitioners navigate today’s challenging global legal landscape.
Investigations, Enforcement, & Compliance Alerts
|March 3, 2026
|5 Min Read
SEC Division of Enforcement Releases Revised Enforcement Manual
Marking the first comprehensive update in eight years, the SEC’s Division of Enforcement (the Division) released a revised edition of its Enforcement Manual (the 2026 Manual). SEC Chairman Paul Atkins called the update a “long-overdue step,” and Division Director Margaret Ryan said the changes are intended to “ensure greater uniformity” and “reflect the Division’s best practices.” Although the 2026 Manual has many changes from the previous version, some will have a greater impact. In this article, we highlight the most significant revisions and discuss their practical implications.
Press Release
|March 2, 2026
|2 Min Read
Winston & Strawn Adds Former DOJ Litigator Matthew Huppert to Antitrust Practice
Washington, D.C. – March 2, 2026 – Winston & Strawn LLP announced today that Matthew Huppert has joined the firm as a Partner in Washington, D.C as a member of the Litigation Department and the Antitrust & Competition Practice. He comes to the firm from the U.S. Department of Justice’s Antitrust Division, where he served as a trial attorney and counsel to the Assistant Attorney General.
Other Results 95 results
Law Glossary
What Is Advertising Litigation?
Advertising litigation is defined as the legal area that covers false or deceptive advertising cases. Lawsuits may be brought by government agencies or corporate competitors based on the Lanham Act—a law that specifically deals with false advertising. The Act outlines how an advertisement can be deemed false. The Federal Trade Commission (FTC) has the ability to file lawsuits to halt deceptive advertising claims. The U.S. Food and Drug Administration may also pursue advertising litigation against violators of government regulations. Companies may be called on to substantiate their advertising claims, whether these are made in print or online.
Law Glossary
What Are the Patent Litigation Differences Between the BPCIA and Hatch-Waxman Act?
There are fundamental differences between the abbreviated approval processes to obtain FDA approval for biosimilars and generic drugs as those processes relate to patent litigation.