Aaron R. Wegrzyn



Aaron R. Wegrzyn (pronounced “Way Grin”) is a litigator in Foley & Lardner LLP's Consumer Law, Finance & Class Action Practice Group. He assists clients with a range of complex commercial litigation matters including cases before federal courts across the country and Wisconsin's state courts.

Aaron regularly defends clients facing class action litigation including financial institutions, professional service providers, manufacturers, and health care organizations. His experience includes lawsuits alleging consumer protection violations, antitrust price fixing and market allocation conspiracies, state-law fraud and intentional misrepresentation claims, and breaches of fiduciary duty. As part of his class action practice, Aaron has handled lawsuits arising under the Telephone Consumer Protection Act (TCPA), the Fair Debt Collection Practices Act (FDCPA), the Fair Credit Reporting Act (FCRA), the Racketeer Influenced and Corrupt Organizations Act (RICO), and the Employee Retirement Income Security Act (ERISA). In doing so, Aaron has helped clients successfully move to dismiss class allegations, defeat class certification, exclude opponents’ expert witness testimony under the federal Daubert standard, and win summary judgment. 

To keep on top of the latest developments in consumer protection law, Aaron serves as an editor of Foley’s Consumer Class Defense Counsel blog, and he regularly writes on topics related to class action practice and procedure. Executing Foley’s commitment to pro bono service, Aaron has represented disadvantaged children and low-income individuals before the U.S. Court of Appeals for the Seventh Circuit, the U.S. District Court for the Eastern District of Wisconsin, and the Wisconsin Court of Appeals.



  • University of Chicago Law School (J.D., with honors, 2013) 
    • Book Review and Essay Editor, University of Chicago Law Review (Volume 80)
    • Ruth Wyatt Rosenson Scholar
  • Marquette University (B.A., magna cum laude, 2010)
    •  Economics Faculty Award for Best Research Paper (2010)

Clerkship And Government Service

Before joining the firm, Aaron served as a law clerk to the Honorable Michael B. Brennan of the U.S. Court of Appeals for the Seventh Circuit. While in law school, he interned with the Milwaukee County District Attorney's Office assisting with prosecutions of homicides and sex offenses.


  • Co-author, “Seventh Circuit Nixes Sherman Act Claims Based on the Noerr-Pennington Doctrine and implied Antitrust Immunity,” National Law Review (March 31, 2020)
  • Author, “D.C. Circuit Sidesteps Bristol-Myers Personal Jurisdiction Defense in Class Action, but Seventh Circuit Rejects It,” National Law Review (March 12, 2020)
  • Author, “Seventh Circuit Weighs in on Vicarious Liability under TCPA,” National Law Review (March 7, 2020)
  • Author, “Parties: Joinder of Parties and Claims, Third-Party Practice, and Class Action Procedure,” Wisconsin Civil Procedure Before Trial (6th ed. 2018), State Bar of Wisconsin
  • Co-author, “A Primer: Wisconsin’s New Class Action Statute,” 91 Wisconsin Lawyer 4 (April 1, 2018)
  • Co-author, “Jurisdiction Issues Dog Multistate Class Actions,” Law360 Expert Analysis (March 2, 2018)
  • Co-author, “4 Tips For Applying Arbitration Agreements To TCPA Claims,” Law360 Expert Analysis (Feb. 15, 2018)
  • Co-author, “The Ninth Circuit’s Decision in In re Hyundai Underscores the Challenges of Certifying Nationwide Classes,” National Law Review (Feb. 1, 2018)
  • Co-author, “Wisconsin Supreme Court Aligns State Class Action Statute with Fed. R. Civ. P. 23,” National Law Review (Dec. 26, 2017)
  • Contributing Author, “2017 Annual Review of Antitrust Law Developments – Chapter IX: Private Antitrust Suits,” Antitrust Law Developments (7th ed.), American Bar Association Section of Antitrust Law
  • Author, “Third Circuit Eyes Up Consumers’ Standing, Splits with Seventh Circuit,” National Law Review (Nov. 21, 2017)
  • Author, “Waiting for Gorsuch: SCOTUS Kicks Important Class Action Waiver Case to Next Term,” National Law Review (Feb. 13, 2017)
  • Author, “Wisconsin Supreme Court Addresses Expert Testimony Under Daubert,” National Law Review (Feb. 9, 2017)


  • Wisconsin
  • U.S. Court of Appeals for the Seventh Circuit
  • U.S. District Courts for the Eastern and Western Districts of Wisconsin
  • U.S. District Court for the Northern District of Illinois
  • U.S. District Court for the District of Colorado
  • U.S. District Court for the Eastern District of Michigan