Congress eyes PBM bills despite Express Scripts ending rebates Modern HealthcareCigna Stock Tumbles on Margin Warning for Pharmacy Benefit Services Barron’sCigna’s Express Scripts set to shift away from PBM rebates Fierce HealthcareCigna’s 2026 pharmacy profits could be dampened by transition to rebate-free model Yahoo FinanceCigna’s End to Drug Rebates Spurs Questions on Premiums, Impact Bloomberg Law News