The Pharmacy Benefit Manager Transparency Act of 2025 is designed to enhance transparency and fairness in the management of prescription drug benefits, specifically targeting the practices of pharmacy benefit managers (PBMs). The legislation aims to prevent deceptive practices and misinformation that can lead to inflated drug costs for consumers and health plans. Key provisions include prohibiting PBMs from charging health plans more for a drug than what they reimburse pharmacies without full disclosure of any price differences.