Logo better3

53 W. Jackson Blvd., Suite 1320
Chicago, IL 60604

Antitrust and Unfair Competition

The attorneys at Miller Law are dedicated to fighting for fair competition and protecting consumers and companies against anticompetitive behavior. Our experienced antitrust attorneys represent plaintiffs in antitrust lawsuits across the United States. We have decades of experience representing consumers and other purchasers in class actions, as well as large “opt-out” purchasers, in a wide range of industries. Our focus includes collusion, such as bid-rigging agreements, price-fixing, and reverse-payment or “pay-for-delay” arrangements, as well as horizontal market division. We also represent plaintiffs challenging illegal monopolies and other conduct that restrains trade and violates federal and state antitrust and fair competition laws. 

Current Antitrust Cases

On March 6, 2024, Miller Law and co-counsel filed a class action complaint against Boehringer Ingelheim Pharmaceuticals, Inc. and Boehringer Ingelheim International GMBH on behalf of a putative class of indirect purchasers.  Plaintiff alleges that Defendants hatched and executed a scheme to unlawfully thwart generic competition in multiple markets—including those for Combivent Respimat and generic equivalents, and Spiriva Respimat and its generic equivalents.


Miller Law is lead counsel for a certified class of purchasers who allegedly paid NorthShore University Health System inflated prices resulting from the merger of Evanston Northwestern and Highland Park hospitals in January 2000.  Additional information can be found here.

Miller Law serves on the executive committee of law firms representing putative classes of purchasers who allege damages, restitution, and injunctive relief against American Express Company and American Express Travel Related Services Company, Inc. (“Amex”). The putative class action seeks injunctive relief and damages for Amex’s alleged non-discrimination provisions that have resulted in inflated prices for goods and services sold by merchants across the country.

Miller Law serves as co-counsel for two large purchasers of broiler chickens, Supply Management Services, Inc., the exclusive supply chain management company for Popeyes Louisiana Chicken, and Quirch Food, LLC, a large purveyor of food products to the retail and foodservice trade. The plaintiffs in this action allege that certain major producers of broilers colluded to restrain production and manipulate the relevant market to illegally raise the price of broilers in the United States. The actions seek damages for defendants’ alleged collusive behavior that allegedly resulted in inflated prices.

Miller Law serves as co-lead counsel for a certified class of indirect purchasers who allege defendants’ unlawful exclusion of generic substitutes for the drug Suboxone® from the relevant market caused the class to suffer damages.  Additional information can be found at https://www.suboxantitrust.com.

Miller law serves as local counsel for a certified class of purchasers and sellers of certain wheat futures contracts traded on the Chicago Board of Trade. The lawsuit alleges that the defendant manipulated the price of these contracts by buying and maintaining a large contract position that did not reflect a legitimate need for the quantity of wheat purchased but was instead allegedly done to influence prices.  Additional information can be found at www.2011wheatfuturesclassaction.com