Carl Malmstrom

(312) 984-0000
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Carl Malmstrom is Of Counsel at Wolf Haldenstein’s Chicago office, and has headed the firm’s Chicago office since 2018. Mr. Malmstrom has experience in antitrust law and has litigated several federal class action antitrust actions on behalf of consumers. He is also a member of the Firm’s Business Practice and Consumer Practice litigation group with an emphasis on antitrust law, unfair and deceptive practices, and data privacy.  Additionally, he has served as local or liaison counsel in dozens of federal and state class actions throughout Illinois, especially in securities, derivative, and Illinois Biometric Information Privacy Act actions.

Mr. Malmstrom joined Wolf Haldenstein in 2008. Prior to joining Wolf Haldenstein, Mr. Malmstrom served as a law clerk in the City of Chicago Law Department Municipal Prosecutions Division.


  • Malmstrom is co-lead counsel for plaintiffs in In re: Herff Jones Data Breach Litigation, Case No. 1:21-cv-1329, S.D. Ind.
  • Malmstrom is liaison counsel for plaintiffs in In re: Seresto Flea & Tick Collar Products Liability Litigation, Case No. 1:21-cv-1447, N.D. Ill.
  • Represented consumers in several successful antitrust litigation matters, including In re: Keurig Green Mountain Single-Serve Coffee Antitrust Litgiation, Case No. 1:14-md-2542, S.D.N.Y.; In re: Packaged Seafood Products Antitrust Litigation, Case No. 3:15-md-2670, S.D. Cal.; In re: Broiler Chicken Antitrust Litigation, Case No. 1:16-cv-8637, N.D. Ill.; and In re: Pork Antitrust Litigation, Case No. 0:18-cv-1776, D. Minn.



Mr. Malmstrom was recognized as an Illinois Rising Star by Super Lawyers from 2016-2018. Mr. Malmstrom is also a member of the Chicago Bar Association.


Carl V. Malmstrom
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