X0508 4 2023-08-02 false 0000105770 WEST PHARMACEUTICAL SERVICES INC WST 0001658001 Birkett Bernard 530 HERMAN O. WEST DRIVE EXTON PA 19341 false true false false Sr VP, Chief Fin & Ops Off false Common Stock 2023-08-02 4 M false 8450.00 102.51 A 12816.00 D Common Stock 2023-08-02 4 M false 13884.00 100.92 A 26700.00 D Common Stock 2023-08-02 4 S false 22134.00 370.3809 D 4566.00 D Common Stock 2023-08-02 4 S false 200.00 371.025 D 4366.00 D Stock Options (Right to buy) 102.51 2023-08-02 4 M false 8450.00 0.00 D 2020-02-19 2029-02-19 Common Stock 8450.00 6850.00 D Stock Options (Right to buy) 100.92 2023-08-02 4 M false 13884.00 0.00 D 2019-06-21 2028-06-21 Common Stock 13884.00 0.00 D The price reported in Column 4 is an average price. These shares were purchased in multiple transactions at prices ranging from $370.00 to $370.96, inclusive. The reporting person undertakes to provide to West Pharmaceutical Services, Inc., any security holder of West Pharmaceutical Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range in this footnote. The price reported in Column 4 is an average price. These shares were purchased in multiple transactions at prices ranging from $371.00 to $371.05, inclusive. The reporting person undertakes to provide to West Pharmaceutical Services, Inc., any security holder of West Pharmaceutical Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range in this footnote. This award vests in four equal annual installments beginning on February 19, 2020. This award vests over four years starting on the first anniversary date of the award. Ryan Metz as Agent for Bernard Birkett 2023-08-08