The FTC first sued Express Scripts, CVS Caremark, and Optum in 2024, claiming anticompetitive and unfair rebating practices surrounding insulin.
Under the Biden administration, Cigna’s Express Scripts was first sued by the Federal Trade Commission (FTC) in September 2024 amid accusations of inflated insulin prices, preventing patient access to the live-saving medication, and prioritizing profits over patient affordability.1 The suit followed the pharmacy benefits manager’s (PBM) own lawsuit regarding a July 2024 report in which the FTC accused it, and CVS Health’s Caremark and UnitedHealth’s Optum—along with their affiliated group purchasing organizations (GPOs)—of deceptive rebate practices for not only insulin but other medications.2,3 The 3 PBMs reportedly accounted for 80% of all prescriptions in the US, and the top 6 PBMs accounted for close to 95%.3,4
“Caremark, [Express Scripts], and Optum—as medication gatekeepers—have extracted millions of dollars off the backs of patients who need life-saving medications,” said Rahul Rao, deputy director of the FTC’s Bureau of Competition, at that time in a statement. “The FTC’s administrative action seeks to put an end to the Big Three PBMs’ exploitative conduct and marks an important step in fixing a broken system—a fix that could ripple beyond the insulin market and restore healthy competition to drive down drug prices for consumers.”1
On February 4, the FTC announced it had reached a settlement with Express Scripts focused on 4 pillars5:
Priot to the FTC lawsuit, the 3 PBMs reportedly accounted for 80% of all prescriptions in the US, and the top 6 PBMs, for close to 95%. | Image Credit: © ixel-Shot-stock.adobe.com

This financial relief to American patients and the community pharmacies that serve them will be complemented by a reshoring of Express Scripts’ GPO Ascent, which could result in a return of more than $750 billion in purchasing activity to the US. When the lawsuit was initially brought, Ascent’s location in Switzerland had been criticized over the lower tax rate for the company’s profits compared with the tax rate at the time in the US, as well as potentially contributing to a business model that clients, employers, and insurers found difficult to monitor.4
Considered a landmark settlement, Express Scripts will be required to implement fundamental changes to its rebate practices, all the while not having to pay a fine or admit to any wrongdoing. These changes target a system that favored the PBM through preferred formulary placement driven by rebates tied to list prices rather than net prices and therefore had an impact on patients’ copays and coinsurance.5
Express Scripts will now need to fulfill a 10-point proposed consent order that includes the following:
According to Express Scripts, its new pharmacy benefits model, first announced in October 2025, could lower brand name prescription drug costs by as much as 30% and make negotiated discounts available up front to Americans. In addition, employers and government programs should be able to save money.6
The FTC’s lawsuit against CVS Health’s Caremark and UnitedHealth’s Optum continues, as do the hundreds of lawsuits brought by states, cities, counties, unions, and other payers against not only these 3 big PBMs but also insulin makers.
There is now a 30-day period in which comments can be given on the proposed agreement between the FTC and Express Scripts; these will be posted on Regulations.gov after processing.
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