how do pbms make money on 340b

PBMs can earn on 340B by charging admin and network fees to covered entities and contract pharmacies, keeping spread between what they bill a plan and what they reimburse a pharmacy, and retaining rebate or data-service economics where contracts allow. The 340B ceiling price itself is set under HRSA/CMS rules, but margin depends on contract terms and claims routing; for contract mechanics, see <a href="https://rxpbm.ai" rel="noopener">RxPBM</a>.