United States and Ohio v. OhioHealth Corp.
Ohio and the United States Department of Justice filed a complaint against OhioHealth Corporation in February 2026. The complaint states that OhioHealth is the dominant hospital system in Columbus and alleges its market power comes from its size, the location of its facilities, and its control of rural hospitals that insurers need to include in…
Ohio v. Ascend Wellness Holdings, Inc., et al.
Ohio brought a lawsuit against nine multistate cannabis operators (“MSOs”) in February 2026. The complaint states that MSOs are often vertically-integrated companies across the cultivation, processing and dispensing supply chain to distribute their branded products within a state. The complaint alleges the defendants have conspired to form cartels which limit the availability of independent Ohio…
Texas v. Epic Systems Corp.
Texas brought a lawsuit against Epic Systems Corporation, which sells electronic health record (“EHR”) database software and related applications to health care providers, in December 2025. The complaint alleges that Epic Systems has engaged in monopolistic conduct by preventing challenges to its EHR business in violations of the Texas Free Enterprise and Antitrust Act. The…
Michigan v. BP P.L.C., et al.
Michigan brought a complaint against BP, Shell, Chevron, Exxon and the American Petroleum Institute in January 2026. The complaint alleges that the defendants conspired to stall competition to their fossil fuel business from renewable energy and maintain their dominance in the energy market. The complaint alleges that the defendants engaged in conduct including abandoning renewable…
Virginia et al v. Zillow Group Inc et al
Viriginia, Arizona, Connecticut, New York, and Washington state brough suit against Zillow and Redfin in the District Court for the Eastern District of Virginia in October 2025. The plaintiff states allege that the defendants executed an illegal agreement under which Redfin exited the internet listing services (“ILS”) market for buildings with more than 25 units…
Michigan v. Express Scripts, Inc. et al.
Michigan brought suit against two pharmacy benefit managers (“PBMs”), Express Scripts, Inc. (“ESI”) and Prime Therapeutics, alleging that the companies entered into an illegal horizontal price-fixing agreement. PBMs’ clients are third-party payors, such as private insurance companies and large employers, that offer pharmaceutical benefits to their members. As part of the services PBMs offer to…
Illinois v. Alternative Staffing Inc., et al.
Illinois brought a complaint against six temporary staffing agencies and a common client, Vee Pak, LLC, alleging that Vee Pak facilitated unlawful agreements among the temporary staffing agencies not to solicit or hire each other’s employees in violation of the Illinois Antitrust Act. The complaint alleges that the no-poach conspiracy among the defendants suppressed the…
United States and Plaintiff States v. UnitedHealth et al. (D. Md. 1:24-cv-03267-JKB)
Four states and the U.S. Department of Justice brought a lawsuit seeking to block the acquisition of Amedysis, Inc. by UnitedHealth Group, Inc. The plaintiff states and DOJ alleged that the defendants are two of the largest home health and hospice service providers in the country and that their merger would eliminate competition between the…
Nebraska v. Daimler Truck et al.
Nebraska, with Energy Marketers of America and Renewable Fuels Nebraska, brought an antitrust action against four manufacturers of medium and heavy-duty vehicles (“MHDVs”) – Daimler Truck North America; International Motors; Paccar; and Volvo Group North America – and the Truck & Engine Manufacturers Association. The lawsuit alleges that defendants agreed to reduce the manufacture of…
Texas et al. v. BlackRock et al.
Thirteen attorneys general brought an antitrust action against three institutional investors – BlackRock, State Street, and Vanguard Group. The lawsuit alleges that defendants used their acquisition of stock to reduce competition in coal markets in violation of Section 7 of the Clayton Act and state antitrust laws and that defendants agreed amongst themselves to reduce…
