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Class Action

When a class action threatens, it is time to move fast. Putting in place an early and aggressive strategy can mean the difference between an early dismissal and years of costly litigation that can diminish a business’s performance and reputation. With a powerful combination of trial and industry experience, extensive knowledge of the complexities of class action lawsuits, and vigorous, innovative advocacy, Jenner & Block is laser-focused on achieving the best business result for our clients. 

With a myriad of successful class action results under our belts, we have helped clients across a range of industries navigate their most challenging antitrust and unfair competition, consumer, employment, environment, insurance, and securities class actions, mass accident cases, and more.

Winning Strategies for Complex Class Actions 

Whether for defendants or plaintiffs, in federal or state courts, we draw upon the firm’s deep industry experience, as well as our unique knowledge of complex class action procedures and strategies. We have successfully represented clients nationwide in proceedings involving antitrust and unfair competition, consumer financial services, consumer fraud, employment, environment, insurance, mass torts, product liability, securities, among many others. 

A Collaborative Approach to Reducing Risk 

Our proactive team approach allows us to guide our clients through even the most multifaceted lawsuits. We pride ourselves on developing partnerships with corporate counsel, and we are skilled at helping them see over the horizon to anticipate issues that may arise and working collaboratively to develop risk effective management solutions.  

Thought Leaders Shaping the Field 

Passionate thought leaders who frequently speak and write on class action issues, our partners share their knowledge and experience to help shape the next generation of class action litigators. 

Our partners are the authors of the leading treatise on class actions, Moore’s Federal Practice  (5th Edition), as well as other works in the field, and are active leaders in the American Bar Association’s Litigation Section Class Actions Committee and the Chicago Bar Association’s Class Action Committee.

  • Represented a food company in successfully defeating class certification in a lawsuit challenging labeling as “suitable for people with diabetes.” The court found the sole remaining plaintiff, who is prediabetic, was not a typical or adequate class representative and could not show reliance on the challenged labeling. The judge also held that the proposed class was overbroad and required individualized inquiries into consumers’ circumstances and injuries, precluding certification.
  • Represented a defendant in a long-running antitrust class action concerning the distribution of certain medical devices. The Seventh Circuit affirmed the dismissal of the case for failure to plead a plausible antitrust violation.
  • Represented a ridesharing transportation company in a putative class action brought by drivers who alleged a sales tax and surcharge were improperly deducted from their earnings. The court granted our client’s motion to compel arbitration and denied the drivers’ motion for discovery.
  • Represented a major automobile manufacturer in a putative nationwide class action involving multiple claims brought by a consumer in the District of New Jersey. The firm succeeded in narrowing the case at the pleading stage, winning nearly all issues litigated in two motions to dismiss, jurisdictional briefing, and motions for reconsideration. Thereafter, plaintiff determined that he no longer wished to pursue the case and it was dismissed.
  • Represented a leading hospitality company in two putative class actions related to a data security incident. We successfully moved to dismiss both cases.
  • Defended a national trucking company over claims that it violated Title VII of the Civil Rights Act. The case was originally brought as a class action and, prior to our involvement, the class was certified. A US district judge granted our motion for decertification of the hostile work environment class and awarded the company summary judgement on the class retaliation claim, leaving only the class members’ individual claims. We secured summary judgement against all the former class representatives.
  • Represented of a global supplier, winning summary judgment and dismissal of putative class action alleging fiduciary breaches, interference with benefits, failure to fund a pension plan, and breach of contract, among other claims.
  • Secured dismissal of four proposed class actions in a series of cases against a multinational food manufacturing company alleging the company deceptively labeled its strawberry toaster pastries products.
  • Represented an aerospace and defense client in nine shareholder lawsuits that were filed in federal district courts in California, Delaware, New Jersey, New York, and Pennsylvania seeking to enjoin their announced acquisition by another large aerospace and defense company in an all-cash transaction with a total equity value of $5.0 billion. We successfully obtained the dismissal of all nine cases which allowed the transaction to close as scheduled.
  • Represented a California regional bank in five shareholder lawsuits filed in the Northern District of California seeking to enjoin our client’s acquisition of another regional bank. We obtained dismissals of each of the cases, which allowed the transaction to close as scheduled.
  • Obtained a complete victory for Canadian cannabis company after securing a dismissal of a securities fraud class action that raised novel issues concerning the regulation of cannabidiol (CBD) products. The lawsuit alleged that the company misled investors about the possibility of such regulation. The result is the first of its kind in a securities fraud class action against a consumer cannabis company.

Experience

  • Represented a food company in successfully defeating class certification in a lawsuit challenging labeling as “suitable for people with diabetes.” The court found the sole remaining plaintiff, who is prediabetic, was not a typical or adequate class representative and could not show reliance on the challenged labeling. The judge also held that the proposed class was overbroad and required individualized inquiries into consumers’ circumstances and injuries, precluding certification.
  • Represented a defendant in a long-running antitrust class action concerning the distribution of certain medical devices. The Seventh Circuit affirmed the dismissal of the case for failure to plead a plausible antitrust violation.
  • Represented a ridesharing transportation company in a putative class action brought by drivers who alleged a sales tax and surcharge were improperly deducted from their earnings. The court granted our client’s motion to compel arbitration and denied the drivers’ motion for discovery.
  • Represented a major automobile manufacturer in a putative nationwide class action involving multiple claims brought by a consumer in the District of New Jersey. The firm succeeded in narrowing the case at the pleading stage, winning nearly all issues litigated in two motions to dismiss, jurisdictional briefing, and motions for reconsideration. Thereafter, plaintiff determined that he no longer wished to pursue the case and it was dismissed.
  • Represented a leading hospitality company in two putative class actions related to a data security incident. We successfully moved to dismiss both cases.
  • Defended a national trucking company over claims that it violated Title VII of the Civil Rights Act. The case was originally brought as a class action and, prior to our involvement, the class was certified. A US district judge granted our motion for decertification of the hostile work environment class and awarded the company summary judgement on the class retaliation claim, leaving only the class members’ individual claims. We secured summary judgement against all the former class representatives.
  • Represented of a global supplier, winning summary judgment and dismissal of putative class action alleging fiduciary breaches, interference with benefits, failure to fund a pension plan, and breach of contract, among other claims.
  • Secured dismissal of four proposed class actions in a series of cases against a multinational food manufacturing company alleging the company deceptively labeled its strawberry toaster pastries products.
  • Represented an aerospace and defense client in nine shareholder lawsuits that were filed in federal district courts in California, Delaware, New Jersey, New York, and Pennsylvania seeking to enjoin their announced acquisition by another large aerospace and defense company in an all-cash transaction with a total equity value of $5.0 billion. We successfully obtained the dismissal of all nine cases which allowed the transaction to close as scheduled.
  • Represented a California regional bank in five shareholder lawsuits filed in the Northern District of California seeking to enjoin our client’s acquisition of another regional bank. We obtained dismissals of each of the cases, which allowed the transaction to close as scheduled.
  • Obtained a complete victory for Canadian cannabis company after securing a dismissal of a securities fraud class action that raised novel issues concerning the regulation of cannabidiol (CBD) products. The lawsuit alleged that the company misled investors about the possibility of such regulation. The result is the first of its kind in a securities fraud class action against a consumer cannabis company.
Class Action

When a class action threatens, it is time to move fast. Putting in place an early and aggressive strategy can mean the difference between an early dismissal and years of costly litigation that can diminish a business’s performance and reputation. With a powerful combination of trial and industry experience, extensive knowledge of the complexities of class action lawsuits, and vigorous, innovative advocacy, Jenner & Block is laser-focused on achieving the best business result for our clients. 

With a myriad of successful class action results under our belts, we have helped clients across a range of industries navigate their most challenging antitrust and unfair competition, consumer, employment, environment, insurance, and securities class actions, mass accident cases, and more.

Winning Strategies for Complex Class Actions 

Whether for defendants or plaintiffs, in federal or state courts, we draw upon the firm’s deep industry experience, as well as our unique knowledge of complex class action procedures and strategies. We have successfully represented clients nationwide in proceedings involving antitrust and unfair competition, consumer financial services, consumer fraud, employment, environment, insurance, mass torts, product liability, securities, among many others. 

A Collaborative Approach to Reducing Risk 

Our proactive team approach allows us to guide our clients through even the most multifaceted lawsuits. We pride ourselves on developing partnerships with corporate counsel, and we are skilled at helping them see over the horizon to anticipate issues that may arise and working collaboratively to develop risk effective management solutions.  

Thought Leaders Shaping the Field 

Passionate thought leaders who frequently speak and write on class action issues, our partners share their knowledge and experience to help shape the next generation of class action litigators. 

Our partners are the authors of the leading treatise on class actions, Moore’s Federal Practice  (5th Edition), as well as other works in the field, and are active leaders in the American Bar Association’s Litigation Section Class Actions Committee and the Chicago Bar Association’s Class Action Committee.

  • Represented a food company in successfully defeating class certification in a lawsuit challenging labeling as “suitable for people with diabetes.” The court found the sole remaining plaintiff, who is prediabetic, was not a typical or adequate class representative and could not show reliance on the challenged labeling. The judge also held that the proposed class was overbroad and required individualized inquiries into consumers’ circumstances and injuries, precluding certification.
  • Represented a defendant in a long-running antitrust class action concerning the distribution of certain medical devices. The Seventh Circuit affirmed the dismissal of the case for failure to plead a plausible antitrust violation.
  • Represented a ridesharing transportation company in a putative class action brought by drivers who alleged a sales tax and surcharge were improperly deducted from their earnings. The court granted our client’s motion to compel arbitration and denied the drivers’ motion for discovery.
  • Represented a major automobile manufacturer in a putative nationwide class action involving multiple claims brought by a consumer in the District of New Jersey. The firm succeeded in narrowing the case at the pleading stage, winning nearly all issues litigated in two motions to dismiss, jurisdictional briefing, and motions for reconsideration. Thereafter, plaintiff determined that he no longer wished to pursue the case and it was dismissed.
  • Represented a leading hospitality company in two putative class actions related to a data security incident. We successfully moved to dismiss both cases.
  • Defended a national trucking company over claims that it violated Title VII of the Civil Rights Act. The case was originally brought as a class action and, prior to our involvement, the class was certified. A US district judge granted our motion for decertification of the hostile work environment class and awarded the company summary judgement on the class retaliation claim, leaving only the class members’ individual claims. We secured summary judgement against all the former class representatives.
  • Represented of a global supplier, winning summary judgment and dismissal of putative class action alleging fiduciary breaches, interference with benefits, failure to fund a pension plan, and breach of contract, among other claims.
  • Secured dismissal of four proposed class actions in a series of cases against a multinational food manufacturing company alleging the company deceptively labeled its strawberry toaster pastries products.
  • Represented an aerospace and defense client in nine shareholder lawsuits that were filed in federal district courts in California, Delaware, New Jersey, New York, and Pennsylvania seeking to enjoin their announced acquisition by another large aerospace and defense company in an all-cash transaction with a total equity value of $5.0 billion. We successfully obtained the dismissal of all nine cases which allowed the transaction to close as scheduled.
  • Represented a California regional bank in five shareholder lawsuits filed in the Northern District of California seeking to enjoin our client’s acquisition of another regional bank. We obtained dismissals of each of the cases, which allowed the transaction to close as scheduled.
  • Obtained a complete victory for Canadian cannabis company after securing a dismissal of a securities fraud class action that raised novel issues concerning the regulation of cannabidiol (CBD) products. The lawsuit alleged that the company misled investors about the possibility of such regulation. The result is the first of its kind in a securities fraud class action against a consumer cannabis company.

Experience

  • Represented a food company in successfully defeating class certification in a lawsuit challenging labeling as “suitable for people with diabetes.” The court found the sole remaining plaintiff, who is prediabetic, was not a typical or adequate class representative and could not show reliance on the challenged labeling. The judge also held that the proposed class was overbroad and required individualized inquiries into consumers’ circumstances and injuries, precluding certification.
  • Represented a defendant in a long-running antitrust class action concerning the distribution of certain medical devices. The Seventh Circuit affirmed the dismissal of the case for failure to plead a plausible antitrust violation.
  • Represented a ridesharing transportation company in a putative class action brought by drivers who alleged a sales tax and surcharge were improperly deducted from their earnings. The court granted our client’s motion to compel arbitration and denied the drivers’ motion for discovery.
  • Represented a major automobile manufacturer in a putative nationwide class action involving multiple claims brought by a consumer in the District of New Jersey. The firm succeeded in narrowing the case at the pleading stage, winning nearly all issues litigated in two motions to dismiss, jurisdictional briefing, and motions for reconsideration. Thereafter, plaintiff determined that he no longer wished to pursue the case and it was dismissed.
  • Represented a leading hospitality company in two putative class actions related to a data security incident. We successfully moved to dismiss both cases.
  • Defended a national trucking company over claims that it violated Title VII of the Civil Rights Act. The case was originally brought as a class action and, prior to our involvement, the class was certified. A US district judge granted our motion for decertification of the hostile work environment class and awarded the company summary judgement on the class retaliation claim, leaving only the class members’ individual claims. We secured summary judgement against all the former class representatives.
  • Represented of a global supplier, winning summary judgment and dismissal of putative class action alleging fiduciary breaches, interference with benefits, failure to fund a pension plan, and breach of contract, among other claims.
  • Secured dismissal of four proposed class actions in a series of cases against a multinational food manufacturing company alleging the company deceptively labeled its strawberry toaster pastries products.
  • Represented an aerospace and defense client in nine shareholder lawsuits that were filed in federal district courts in California, Delaware, New Jersey, New York, and Pennsylvania seeking to enjoin their announced acquisition by another large aerospace and defense company in an all-cash transaction with a total equity value of $5.0 billion. We successfully obtained the dismissal of all nine cases which allowed the transaction to close as scheduled.
  • Represented a California regional bank in five shareholder lawsuits filed in the Northern District of California seeking to enjoin our client’s acquisition of another regional bank. We obtained dismissals of each of the cases, which allowed the transaction to close as scheduled.
  • Obtained a complete victory for Canadian cannabis company after securing a dismissal of a securities fraud class action that raised novel issues concerning the regulation of cannabidiol (CBD) products. The lawsuit alleged that the company misled investors about the possibility of such regulation. The result is the first of its kind in a securities fraud class action against a consumer cannabis company.

Co-Chairs

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Related Capabilities

Antitrust and Competition Law
Appellate and Supreme Court
Business Litigation
Cannabis
Consumer Brands
Content, Media, and Entertainment
Data Privacy and Cybersecurity
ERISA
ESG: Environmental, Social, and Governance
Education
Energy
Food and Beverage
Global Hearing Preparation
Investor and Securities Litigation
Life Sciences
Markets and Trading
Real Estate and Hospitality
Technology

News and Insights

News

Karin Dryhurst, Commercial Litigator, Joins Jenner & Block’s Financial Litigation, Class Action and Payments Practices in Washington, DC

Jenner & Block is pleased to announce that Karin Dryhurst has joined the firm as a Partner in its Washington, DC office, where she will be a key member of the Financial Litigation, Class Action, and Payments Practices.

April 28, 2026

Event

Micro- and Nanoplastics: Essential Updates for Counsel and Compliance Teams

Tuesday, February 24, 2026

Publications

"2026 Federal Class Action Deskbook" LexisNexis

The 2026 edition of the Federal Class Action Deskbook, authored by Partner Howard Suskin, has been published by Matthew Bender, a division of LexisNexis. This comprehensive guide provides practitioners with in-depth insights into litigating class actions in federal courts.

January 7, 2026

Recognition

Partner Kate Spelman Named 2025 “Leaders of Influence: Thriving in Their 40s” by Los Angeles Business Journal

Partner Kate Spelman was named to the Los Angeles Business Journal's 2025 “Leaders of Influence: Thriving in Their 40s” list, which recognizes leading professionals who demonstrate exceptional achievement and impact on their profession and the Los Angeles community.

December 18, 2025

Publications

The Ninth Circuit Rejects Class Action Plaintiffs’ Tactic to Avoid Federal Court

Before the Class Action Fairness Act of 2005 (CAFA), many corporate defendants were forced to litigate class actions in state court because the claims of putative class members could not be aggregated to meet the threshold requirement for federal diversity jurisdiction. However, CAFA removed that obstacle by establishing federal jurisdiction for class actions with at least 100 class members, more than $5 million in controversy considering all class members’ combined claims, and minimal diversity

October 2025

News

Partner Miwa Shoda to Speak on Class Actions Panel for the 2025 Inter-Pacific Bar Association Annual Conference

On April 25, Partner Miwa Shoda will participate in a panel during the 2025 Inter-Pacific Bar Association Annual Conference. The event, titled “Transformation Everywhere All at Once: Business and Law in a Changing World” will take place at the Marriott Marquis in Chicago from April 23 to 26.

April 14, 2025

Publications

“Freezing Injunctions – Clearing Up the Confusion,” The Law Society Gazette

Special Counsel Clare Hennessey’s article was published in The Law Society Gazette, where she explores the meaning of a "good arguable case" in the context of freezing injunctions, an important clarification by the Court of Appeal in its judgment in Isabel Dos Santos v Unitel (2024).

February 12, 2025

Publications

"2025 Federal Class Action Deskbook" LexisNexis

The 2025 edition of the Federal Class Action Deskbook, authored by Partner Howard Suskin, has been published by Matthew Bender, a division of LexisNexis. This comprehensive guide provides practitioners with in-depth insights into litigating class actions in federal courts.

January 22, 2025

Publications

“Why Class Cert Is Unlikely in Cases Like Mattel ‘Wicked’ Suit,” Law360

In an article featured in Law360, Partner Alex Smith discusses the recently proposed class action, Holly Ricketson v. Mattel Inc. in the US District Court for the Central District of California and how it highlights the uphill battle plaintiffs face in certifying a class in such cases. The matter involves mislabeled children's dolls featuring characters from the movie Wicked.

December 17, 2024

Publications

“Life Sciences and Securities Litigation: Recurring Securities Fraud Risks in Garnering FDA Approval,” American Bar Association

In an article for the American Bar Association, Partner Jacob Alderdice and Associate Billy Goldstein provide insight on the recurring risk of class action lawsuits faced by companies in the life sciences and other fields arising from disclosures about their interactions with the US Food and Drug Administration.

November 11, 2024

Recognition

Partner Joanna Wright Named “Future Star,” by Benchmark Litigation 

Jenner & Block Partner Joanna Wright has been named a “Future Star,” by Benchmark Litigation in its 2025 rankings. Benchmark previously recognized Joanna as a 40 & Under honoree in 2023 and as a Future Star in 2022.   

October 4, 2024

Recognition

Jenner & Block Named to The American Lawyer’s A-List

Jenner & Block has been named to The American Lawyer’s 2024 A-List, an annual list highlighting the 20 most well-rounded firms according to both financial and cultural criteria.

August 7, 2024

News

2024 Chambers USA Recognizes 35 Practice Areas, 76 Lawyers from Jenner & Block

Jenner & Block has been recognized as a leading firm across 35 practice areas in the 2024 edition of Chambers USA. The recognition includes practice rankings in 13 national and 22 state categories.

June 6, 2024

Event

English-American Litigation Forum

Partners Christine Braamskamp and Andrew Lichtman were invited to participate in this year’s English-American Litigation Forum, an exclusive event that brings together 48 leading litigators from the United Kingdom and the United States. Participants are personally selected and invited based on their experience and knowledge of cross-border matters. Andrew led a discussion about developments in class action litigation, with a focus on securities class actions, and Christine attended.

June 2, 2024

News

Partner Precious Jacobs-Perry Admitted to the Supreme Court Bar along with Historic Group from the Black Women Lawyers Association of Greater Chicago

Partner Precious Jacobs-Perry was admitted to the US Supreme Court bar alongside 11 other lawyers from the Black Women Lawyers Association of Greater Chicago (BWLA), a professional bar association committed to supporting and empowering Black women in the legal profession. Cook County Judge Chloe Pedersen moved for their admission, marking the first time BWLA has been admitted as a group. Admission qualifies lawyers to argue before the highest court in the nation, which shapes US law and policy.

May 13, 2024

Event

"Maintaining Judicial Independence and Protecting the Rule of Law," Chicago Bar Association

Partner Howard Suskin will moderate a panel during the Chicago Bar Association’s International CLE Program in Mexico City on March 26.  The panel, titled “Maintaining Judicial Independence and Protecting the Rule of Law,” will feature judges and lawyers from Mexico and the United States who will address ways in which the judiciary and bar associations can support judges against threats to their judicial independence. 

March 26, 2024

Publications

"Class Action Notices Under Federal Rule of Civil Procedure 23," Class Actions, Illinois Institute for Continuing Legal Education

Partner Howard Suskin and Associate Reanne Zheng co-authored a chapter in the 2024 edition of Class Actions, newly published by the Illinois Institute for Continuing Legal Education. Their chapter analyzes class action notices under Federal Rule of Civil Procedure 23, including recent developments in this field.

March 2024

Publications

“Would You Like a Bit More? A Transatlantic View on Allegedly Misleading Food Presentations,” Transatlantic Law Journal

In their article for the Transatlantic Law Journal, Partners Debbie Berman and Kate Spelman, Associate Julia Hirata, and Benedikt Burger, counsel at the German law firm of Gleiss Lutz, compare US and German litigation of similar food products to illustrate different outcomes on strikingly similar issues. The authors delve into questions about how much protection consumers need when it comes to advertising food products and how much common sense should weigh in when consumers bring claims to cour

February 2024

Publications

“An ‘ambiguity’ defense in ‘clean beauty’ litigation,” Daily Journal

In an article for the Daily Journal, Partner Alexander Smith discussed “clean beauty” litigation and a recent Ninth Circuit decision, McGinity v. Procter & Gamble Co., 69 F.4th 1093 (9th Cir. 2023), which may provide additional ammunition to manufacturers who are facing “clean beauty” lawsuits.

January 12, 2024

Publications

Law of Class Action, Fifty-State Survey, American Bar Association

Partner Howard Suskin is a Coordinating Editor for the newly published Law of Class Action, Fifty-State Survey (ABA 2024). This treatise provides a comprehensive overview of class action litigation practice and developments in each state.

2024 Edition

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