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Practice Area
Class Actions & Group Litigation
Winston has developed a consistent record of success handling class action cases in state and federal courts. The practice is anchored by seasoned class action lawyers, many of whom have been recognized by Chambers USA and other ranking organizations as being top practitioners in their field. Our clients rely on us to steer them through class action matters by drawing on the firm’s significant experience in resolving complex litigation using creative and aggressive arguments, across a broad range of class, collective, coordinated, and mass actions, as well multidistrict litigation. We also have succeeded at trial in several class actions—a rare occurrence.
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
Winston’s financial services litigators advise financial services companies of every size and scope on litigation, dispute resolution, and regulatory matters in local, state, and federal jurisdictions. While we are proud to have advised many clients as to how avoid formal legal proceedings, should litigation arise, we bring to bear the full strength of our nationally renowned litigation and trial practice when it does arise.
Experience 109 results
Experience
|October 1, 2025
AA Mission Acquisition Corp. II - Initial Public Offering
Winston & Strawn LLP represented AA Mission Acquisition Corp. II, a blank check company, in the recent closing of its $100 million Initial Public Offering (IPO). The offering consisted of 10,000,000 units priced at $10.00 per unit, before deducting underwriting discounts and estimated offering expenses. The units began trading on the New York Stock Exchange (NYSE) under the ticker symbol “YCY.U” on October 1, 2025.
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.
Experience
|July 30, 2025
Represent Norman W. Fries, Inc. d/b/a Claxton Poultry Farms in a series of 15+ antitrust class actions consolidated in the Northern District of Illinois and brought by plaintiffs who allege that Claxton and the nation’s other largest poultry producers conspired to fix the price of broiler chickens in a scheme from 2008 to 2016 that raised the price for broiler chickens by artificially reducing supply.
Insights & News 2,961 results
Article
|November 21, 2025
|3 Min Read
The Human Touch Lawyers Need to Succeed in an AI-Driven World
This article was originally published in Bloomberg Law. Reprinted with permission. Any opinions in this article are not those of Winston & Strawn or its clients. The opinions in this article are the authors’ opinions only. This article was co-authored with PrincetonComms founder Matt Eventoff.
Winston’s Environmental Law Update
|November 21, 2025
|4 Min Read
On November 18, 2025, the Ninth Circuit Court of Appeals ruled to temporarily stay implementation of California SB 261, the state’s corporate climate-related financial risk reporting law, while an appeal is pending related to an industry group-led challenge to the law. In the short ruling, the Ninth Circuit denied the motion to stay implementation of the companion bill, the Climate Corporate Data Accountability Act.
Benefits Blast
|November 20, 2025
|10+ Min Read
2026 Proxy Season: A Look Ahead to Executive Compensation Issues and Considerations
As the 2026 proxy season approaches, companies should be mindful of developments in required executive compensation disclosures and related issues that may arise as they prepare proxy statements. This alert surveys key developments and provides specific action items for companies to consider.
Other Results 72 results
Law Glossary
A class action is a procedural device that allows one or more persons, usually plaintiffs (though federal and state procedural rules also authorize defendant classes) to file suit on behalf of a group of similarly situated persons. Federal law defines a class action as “any civil action filed under Rule 23 of the Federal Rules of Civil Procedure or similar State statute or rule of judicial procedure authorizing an action to be brought by 1 or more representative persons as a class action.” 28 U.S.C. § 1332(d)(1)(B), (d)(8).
Law Glossary
Removal is a procedural mechanism through which a case filed in state court may be transferred to federal court upon the request of one or more parties. Actions filed in state court over which a federal court would have original jurisdiction may be transferred—or removed—to federal court under the removal statute, 28 U.S.C. § 1441. Generally speaking, removal is possible if (1) the plaintiff(s) and defendant(s) are citizens of different states and the case places more than $75,000 in controversy (so-called “diversity” jurisdiction), or (2) the case turns on issues of federal law (so-called “federal question” jurisdiction). In many cases, defendants prefer to be in federal court, and so defendants often analyze early in the case whether removal is possible.
Law Glossary
Dark patterns are deceptive or manipulative designs on digital platforms that trick users into making unintended choices. Dark patterns can appear as designs that create misleading impressions, hide or delay disclosure of material information, lead to unauthorized charges, or obscure privacy choices. Some examples include advertisements deceptively formatted to look like independent editorial content; non-descriptive dropdowns, arrows, or small icons to hide the full cost and other terms, free trials that automatically convert to recurring subscriptions; and prominent cookie-consent banners that hide cookie-rejection options.