The City of Boston v. OptumRx, Inc.

United States Court of Appeals For the First Circuit

No. 25-1258 25-1265 THE CITY OF BOSTON; THE BOSTON PUBLIC HEALTH COMMISSION; THE BOSTON HOUSING AUTHORITY, Plaintiffs, Appellants/Cross-Appellees, v. OPTUMRX, INC., Defendant, Appellee/Cross-Appellant, EXPRESS SCRIPTS, INC.; EXPRESS SCRIPTS ADMINISTRATORS, LLC, d/b/a Express Scripts, f/k/a Medco Health, LLC; MEDCO HEALTH SOLUTIONS, INC., f/k/a Merck-Medco Managed Care LLC; EXPRESS SCRIPTS PHARMACY, INC.; ESI MAIL ORDER PROCESSING, INC.; ESI MAIL PHARMACY SERVICE, INC.; OPTUMINSIGHT, INC.; OPTUMINSIGHT LIFE SCIENCES, INC.; UNITEDHEALTH GROUP INCORPORATED, Defendants, Appellees.

ERRATA SHEET The majority opinion of Judge Lynch, issued on March 2, 2026, is amended as follows: On page 3, line 19, replace "PBM's" with "PBMs'".