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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.
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
Brands across key sectors turn to Winston litigators to defend their reputations in advertising class actions, competitor disputes, and investigations. With litigators based in the U.S.’s busiest jurisdictions—including courts in California, Florida, Illinois, New York, and Texas—we have deep experience and prowess in handling some of the most high-profile and business-essential advertising cases in recent history. These disputes have involved false advertising; unfair competition, unfair business practices, and unjust enrichment; copyright, trade name, and service mark infringement; consumer-protection claims; and violations of the Lanham Act.
Experience 438 results
Experience
|September 23, 2025
Denali Capital Acquisition Corp Closes Business Combination with Semnur Pharmaceuticals
Winston & Strawn LLP represented Denali Capital Acquisition Corp. (OTCQB: DNQAF), a special purpose acquisition company, in the closing of its previously announced business combination with Semnur Pharmaceuticals, Inc., a clinical late-stage specialty pharmaceutical company focused on the development and commercialization of novel non-opioid pain therapies and a majority-owned subsidiary of Scilex Holding Company (Nasdaq: SCLX).
Experience
|September 11, 2025
$1.5 Billion Raymond James Financial, Inc. Public Offering of Senior Notes
We served as underwriters' counsel to BofA Securities, Citigroup, J.P. Morgan and Raymond James, as joint book-running managers, in connection with the registered public offering of $1.5 billion of Senior Notes by Raymond James Financial, Inc. comprised of $650 million of its 4.900% Senior Notes due 2035, and $850 million of its 5.650% Senior Notes due 2055.
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 8,157 results
Sponsorship
|November 20, 2025
Winston & Strawn Sponsors 2025 Smart Business Dealmakers South Florida M&A Conference
Winston & Strawn is proud to sponsor the upcoming Smart Business Dealmakers South Florida M&A Conference. The conference brings together hundreds of local dealmakers, including middle-market CEOs, top investors and lenders, and leading M&A advisers.
Seminar/CLE
|November 13, 2025
AI in Action: Legal Strategies for Healthcare Innovation
We are bringing together stakeholders across the healthcare ecosystem—from front-line providers to financial backers—for a panel discussion on AI in healthcare.
Sponsorship
|November 12, 2025
Winston & Strawn Sponsors 2025 Smart Business Dealmakers Houston M&A Conference
Winston & Strawn is proud to sponsor the upcoming Smart Business Dealmakers Houston M&A Conference. The conference will discuss topics ranging from raising capital to alternative asset investing, covering the breadth of the M&A landscape.
Other Results 141 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.