Investing.com -- Shares of CVS Health Corp (NYSE:CVS), Cigna (NYSE:CI) Group ... said the "Big 3 PBMs" — CVS’s Caremark, Cigna’s Express Scripts, and UnitedHealth’s OptumRx — imposed ...
Witty's comments came during the company's first earnings call since the killing of Brian Thompson, the CEO of the company's insurance arm UnitedHealthcare.
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