Regulators published their most detailed findings yet on how some of the nation’s largest companies profited from "excess" prescription price hikes of 1,000% or more.

The Federal Trade Commission voted unanimously to release additional findings from its yearslong probe into CVS Caremark, OptumRx and Express Scripts.

Pharmacy benefit managers, which serve as the middlemen between drug makers, insurers and pharmacies, reaped $7.3 billion in revenue from marking up the prices of dozens of specialty generic drugs between 2017 and 2022,

UnitedHealth Group's Optum, CVS Health's CVS Caremark and Cigna's Express Scripts -- marked up prices at their pharmacies by hundreds or thousands of percent, netting them $7.3 billion in revenue in excess of the acquisition costs of the drugs,