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How 3 companies came to dominate the PBM market

When you think of industries dominated by a few powerful players (*cough* tech *cough*), the pharmacy benefit manager (PBM) industry probably isn’t the first that comes to mind. But since the creation of PBMs in the 1960s, three companies have come to dominate almost 89% of the market, which is valued at $518.6 billion this year.


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