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U.S. prescription market: market share of pharmacy benefit managers 2021

Market share of the top pharmacy benefit managers in the U.S. prescription market in 2021

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Release date

April 2022


United States

Survey time period


Supplementary notes

Market share based on total prescription claims. Missing percentage points to 100 percent are probably due to rounding.
* Includes Cigna claims which fully transitioned to Express Scripts by the end of 2020, and a portion of Prime Therapeutics network.
** Excludes estimates of 2021 claims for which Express Scripts handles pharmacy network contracting.
*** Figure includes some cash pay prescriptions that use a discount card processed by one of the 6 PBMs shown on the chart.

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Statistics on "U.S. pharmaceutical industry"

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