10 West Pharmaceutical Services finance leaders
Chief financial officer, vice president of FP&A, vice president and treasurer and director of capital controllership are among the current roles held by these ten West Pharmaceutical Services finance leaders. A reader can learn how finance leaders work at West Pharmaceutical Services from people who have held the role.
Professionals to explore
Arlete Silva
LinkedInExperience: VP of Finance Digital and ERP Optimization · West Pharmaceutical Services
Arlete Silva has been VP of Finance Digital and ERP Optimization at West Pharmaceutical Services since August 2019, based in Miami. Arlete Silva was Chief Information Officer at MilliporeSigma from 2017 to 2019 and Regional Finance Director, Latin America at Sigma-Aldrich from 2012 to 2014, and the profile describes leading a wall-to-wall SAP S/4 HANA implementation.
Bob McMahon
LinkedInExperience: Chief Financial Officer · West Pharmaceutical Services
Bob McMahon has been Chief Financial Officer at West Pharmaceutical Services since August 2025, based in Exton, Pennsylvania. Bob McMahon was Chief Financial Officer at Agilent Technologies from 2018 to 2025, Chief Financial Officer at Hologic, Inc. from 2014 to 2018 and Worldwide VP, Finance - Ortho Clinical Diagnostics at Johnson & Johnson from 2011 to 2014.
Carly Knoll
LinkedInExperience: Vice President FP&A, Proprietary Segment · West Pharmaceutical Services
Carly Knoll has been Vice President FP&A, Proprietary Segment at West Pharmaceutical Services since June 2025 and has also held the role Senior Director FP&A since May 2023, based in Chester Springs, Pennsylvania. Carly Knoll was Senior Director Accounting at West from 2020 to 2023 and Director - Financial Systems and Strategy at The Campbell's Company from 2018 to 2020.
Charles Witherspoon, CPA CTP
LinkedInExperience: Vice President & Treasurer · West Pharmaceutical Services
Charles Witherspoon, CPA CTP has been Vice President & Treasurer at West Pharmaceutical Services since November 2018, based in Exton, Pennsylvania. Charles Witherspoon was Vice President & Treasurer at American Water in 2018, Senior Finance Director & Assistant Treasurer there from 2016 to 2018 and Vice President & Global Treasurer at Church & Dwight Co., Inc. from 2010 to 2015.
Fatih Celikdis
LinkedInExperience: Director, Capital Controllership & Reporting · West Pharmaceutical Services
Fatih Celikdis has been Director, Capital Controllership & Reporting at West Pharmaceutical Services since July 2026, based in Aachen, Germany, with a profile headline that lists capex governance, fixed assets and financial controls. At West, Fatih Celikdis was Sr. Manager Cost Accounting, Group Lead EU from 2023 to 2026 and Sr Analyst, FP&A Ops & Capital Planning from 2020 to 2021.
Jamey O'Neill
LinkedInExperience: Senior Director FP&A, Contract Manufacturing Segment · West Pharmaceutical Services
Jamey O'Neill has been Senior Director FP&A, Contract Manufacturing Segment at West Pharmaceutical Services since May 2025, based in West Chester, Pennsylvania. At West, Jamey O'Neill was Senior Director, Corporate Controller from 2024 to 2025 and Senior Director, Assistant Controller from 2021 to 2024, and was a Director at PwC from 2019 to 2020.
Jonathan Matty
LinkedInExperience: Director, FP&A · West Pharmaceutical Services
Jonathan Matty has been Director, FP&A at West Pharmaceutical Services since June 2026, based in Greater Philadelphia. Jonathan Matty was Director, Finance Business Partner, Commercial Operations at CSL from 2021 to 2025, Associate Director, Operations Planning & Analysis, R&D there from 2020 to 2021 and R&D Business Operations Manager from 2018 to 2020.
Nicholas Pollander
LinkedInExperience: Director, FP&A Commercial · West Pharmaceutical Services
Nicholas Pollander has been Director, FP&A Commercial at West Pharmaceutical Services since May 2026 and has also held the role Director, FP&A Operations since June 2024, based in Philadelphia. At West, Nicholas Pollander was Senior Manager, FP&A Operations from 2023 to 2024 and Senior Manager, Finance, Global Revenue from 2022 to 2023.
Sara Murphy
LinkedInExperience: Director Global FP&A Analytics and Insights · West Pharmaceutical Services
Sara Murphy has been Director Global FP&A Analytics and Insights at West Pharmaceutical Services since May 2026, based in Dublin. At West, Sara Murphy was Director Finance CoE Reporting and Analytics from 2025 to 2026 and Senior Manager Global Finance Transformation from 2021 to 2025, and was Senior Manager Finance Transformation at ESB from 2019 to 2021.
Séamus Kilbane
LinkedInExperience: Senior Director Financial Shared Services · West Pharmaceutical Services
Séamus Kilbane has been Senior Director Financial Shared Services at West Pharmaceutical Services since July 2020, based in Greater Dublin. Séamus Kilbane was Advisor and Interim CFO at Kindesan Consulting from 2019 to 2020, International CFO at Adobe Commerce from 2017 to 2019 and Finance Director at Quest Software from 2016 to 2017.
Choose the right perspective
Match the person's area, such as segment FP&A, treasury, capital controllership, finance systems or shared services, to the decision you are working on. Check when each person started the current role to judge how recent the experience is.
Questions to take into the conversation
- 01What did you focus on first when you stepped into your current finance role?
- 02How do you work with operations and commercial leaders when building a forecast?
- 03What has your own experience taught you about reviewing and approving capital spending?
Reaching West Pharmaceutical Services finance leaders
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About this directory
This is a professional research starting point based on business profile data retrieved on . Titles and companies reflect that source snapshot; roles marked former had ended by then. Check the linked profiles for current details. Inclusion does not imply Instant Expert membership or availability.
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