; or (B) the median price charged to the group health plan or health insurance issuer when the same drug is dispensed to enrollees in the plan or coverage by other similarly situated pharmacies not wholly or partially owned by the health insurance issuer or entity providing pharmacy benefits management services, as described in paragraph (1). (3) Supplementary reporting for intra-company prescription drug transactions A health insurance issuer of group health insurance coverage or an entity providing pharmacy benefits management services under a group health plan or group health insurance coverage that conducts transactions with a wholly or partially owned pharmacy, as described in paragraph (2), shall submit, together with the report under subsection (b), a supplementary report every 6 months to the plan sponsor that includes— (A) an explanation of any benefit design parameters that encourage enrollees in the plan or coverage to fill prescriptions at mail order, specialty, or retail pharmacies that are wholly or partially owned by that issuer or entity; (B) the percentage of total prescriptions charged to the plan, coverage, or enrollees in the plan or coverage, that were dispensed by mail order, specialty, or retail pharmacies that are wholly or partially owned by the issuer or entity providing pharmacy benefits management services; and (C) a list of all drugs dispensed by such wholly or partially-owned pharmacy and charged to the plan or coverage, or enrollees of the plan or coverage, during the applicable quarter, and, with respect to each drug— (i) the amount charged per course of treatment or 30-day supply with respect to enrollees in the plan or coverage, including amounts charged to the plan or coverage and amounts charged to the enrollee