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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.
Experience 57 results
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.
Experience
|June 8, 2025
Secured, with co-counsel, final approval of an historic settlement of over US$2.75B in back-damages for current and former college-athletes and a new revenue-sharing model allowing schools to share future earnings with athletes. This decade-long effort across four different lawsuits redefines the economics of college sports, affirming athlete rights and fair compensation. Following a 9-0 Supreme Court victory in Alston v. NCAA, the team filed three antitrust class actions, resulting in a groundbreaking settlement that creates a revenue-sharing system projected to generate at least US$20B in new, previously prohibited payments and benefits to Division I college athletes over the next decade. The settlement was recognized in Am Law‘s Litigator of the Week column.
Insights & News 4,234 results
Recognitions
|December 19, 2025
|1 Min Read
Winston Team Named The American Lawyer’s Litigator of the Week
Winston & Strawn partners Jeffrey Kessler, Jeanifer Parsigian, and Danielle Williams were named as Litigators of the Week by The American Lawyer in their December 19, 2025, column.
In the Media
|December 19, 2025
|1 Min Read
Damien Diggs Discusses Use of Generative AI Chats as Digital Evidence with Cybersecurity Law Report
Winston & Strawn partner and former U.S. Attorney for the Eastern District of Texas Damien Diggs was quoted in the first article of a two-part series by Cybersecurity Law Report examining developments around the use of generative AI chat logs as digital evidence in criminal investigations and prosecutions.
Capital Markets & Securities Law Watch
|December 18, 2025
|5 Min Read
Two recent developments signal where the Securities and Exchange Commission (the SEC) is headed in 2026. First, SEC Chairman Paul Atkins’ address at the New York Stock Exchange (NYSE) on December 2, 2025 set forth guiding principles for reform with the goal to, in Chairman Atkins’ words, “make IPOs great again.”
Other Results 104 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.
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