New Haven sues Cigna, CVS Health, UnitedHealth over insulin pricing scheme

The case, docketed on January 8, 2026, as Case No. 2:26-cv-01542, pulls in three insulin manufacturers — Eli Lilly and Company, Novo Nordisk Inc., and Sanofi-Aventis U.S. LLC – alongside the pharmacy benefit management operations of Cigna Health and Life Insurance Company, Evernorth Health, Inc. (formerly Express Scripts Holding Company) and affiliates, CVS Health Corporation and its Caremark subsidiaries, and UnitedHealth Group, Inc. through Optum and OptumRx, among others. New Haven, which runs self-insured health plans for its employees and eligible retirees, says it has been paying artificially inflated prices for insulin and other diabetes drugs as a result.