Prime Therapeutics Hires Don Amorosi, Chief Operating

Contact: Sheila ThelemannPrime TherapeuticsDirector, PR and MarketingCommunications612.777.5508sthelemann@primetherapeutics.comPrime Therapeutics Hires Don Amorosi, Chief Operating Officer, andDuane Barnes, Senior Vice President of Consumer DeliveryST. PAUL, MINN., September 23, 2010– Prime Therapeutics (Prime) announces that it has hiredDon Amorosi as Chief Operating Officer and Duane Barnes as Senior Vice President, ConsumerDelivery.Amorosi will oversee marketing, government programs, claims and benefit operations, qualityassurance teams, pharmacy network management and health care reform implementationefforts. Prior to joining Prime, Amorosi served as an officer and Vice President of Trade Relationsat Omnicare, Inc. He has also held management positions at several other industryorganizations, including the head of Pharmacy Contracting at Aetna, Assistant Vice President ofPBM Operations at CIGNA, Vice President of Pharmacy Benefit Management at Rite AidCorporation and a group manager at Argus Health Systems, Inc. He received his bachelor‟sdegree in finance from Oklahoma State University.“Don brings an extensive track record of pharmacy benefit management operations and contractadministration expertise,” said Eric Elliott, President and CEO, Prime. “Efficiency andeffectiveness of operations are key priorities and I am confident that Don will be critical to oursuccess in these areas.”In his role, Barnes will oversee the contact center, PrimeMail ® (mail-service pharmacy), andPrime‟s specialty pharmacy program, Triessent ® . Additionally, Barnes will assume the primaryrole in driving the necessary consumer-focused orientation across all aspects of the enterprise.He will lead Prime‟s efforts to provide support for members in helping them more easily accessmedications and information, lead efforts to expand Prime‟s consumer delivery capabilities, andwill accelerate strategies to ensure Prime‟s competitive position in the increasingly „consumerengaged‟pharmacy benefit management space.Barnes comes to Prime from Aetna Rx Home Delivery, where he served as Senior Vice Presidentof Home Delivery and Specialty Pharmacy. He also served as the National Director of Logisticsand Transportation at Quest Diagnostics, and Vice President and General Manager of MedcoHealth Solutions, Inc. He received his bachelor‟s degree from West Virginia University andmaster‟s degrees in Strategic Management and Global Supply Chain Management from IndianaUniversity, Kelley School of Business.“Ensuring our members have the highest level of service is a top priority. As health care reformmeasures are implemented and as the ways members access their medications and health careinformation changes, it‟s also important that we stay ahead of these changes and continueproviding industry-leading services to our members,” said Elliott. “Duane‟s experience andleadership will be valuable in securing a member lens on our offerings and how we serviceindividuals. This will enable us to continue to be the leader in pharmacy benefit management,as solutions require an even deeper individual connection.”© Prime Therapeutics LLC 7/10

Prime Therapeutics is a pharmacy benefit management company dedicated to providinginnovative, clinically-based, cost-effective pharmacy solutions for clients and members.Providing pharmacy benefit services nationwide to nearly 17 million covered lives*, its clientbase includes Blue Cross and Blue Shield Plans, employer and union groups, and third-partyadministrators. Headquartered in St. Paul, Minnesota, Prime Therapeutics is collectively ownedby 12 Blue Cross and Blue Shield Plans, subsidiaries or affiliates of those Plans. Learn more atwww.primetherapeutics.com.*As of January 1, 2011© Prime Therapeutics LLC 7/10