EXTON, Pa., July 21, 2025 /PRNewswire/ -- West Pharmaceutical Services, Inc. (NYSE: WST), a global leader in innovative solutions for injectable drug administration, today announced the appointment of Robert McMahon as the company's new Chief Financial Officer (CFO), effective August 4, 2025. Mr. McMahon will succeed Bernard Birkett, CFO, who announced his intention to retire earlier this year. Mr. Birkett will assume the role of Senior Advisor to the CEO through the end of the year to ensure a seamless tra ...