| SC 13G/A | 2024-02-13 | VANGUARD GROUP INC | WEST PHARMACEUTICAL SERVICES INC | 9,002,632 | 12.2% | EDGAR |
| SC 13G/A | 2024-01-24 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 7,778,203 | 10.5% | EDGAR |
| SC 13G/A | 2023-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | WEST PHARMACEUTICAL SERVICES INC | 2,301,161 | 3.1% | EDGAR |
| SC 13G/A | 2023-02-09 | VANGUARD GROUP INC | WEST PHARMACEUTICAL SERVICES INC | 8,988,409 | 12.1% | EDGAR |
| SC 13G | 2023-01-24 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 8,148,624 | 11.0% | EDGAR |
| SC 13G/A | 2022-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | WEST PHARMACEUTICAL SERVICES INC | 6,241,901 | 8.4% | EDGAR |
| SC 13G/A | 2022-02-10 | VANGUARD GROUP INC | WEST PHARMACEUTICAL SERVICES INC | 8,633,853 | 11.6% | EDGAR |
| SC 13G/A | 2022-02-04 | FRANKLIN RESOURCES INC | WEST PHARMACEUTICAL SERVICES INC | 2,848,869 | 3.8% | EDGAR |
| SC 13G/A | 2022-01-27 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 8,094,288 | 10.9% | EDGAR |
| SC 13G/A | 2022-01-25 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 8,094,288 | 10.9% | EDGAR |
| SC 13G/A | 2021-04-12 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 7,467,809 | 10.1% | EDGAR |
| SC 13G/A | 2021-02-16 | PRICE T ROWE ASSOCIATES INC /MD/ | WEST PHARMACEUTICAL SERVICES INC | 4,624,247 | 6.2% | EDGAR |
| SC 13G/A | 2021-02-10 | VANGUARD GROUP INC | WEST PHARMACEUTICAL SERVICES INC | 8,289,370 | 11.2% | EDGAR |
| SC 13G/A | 2021-02-02 | FRANKLIN RESOURCES INC | WEST PHARMACEUTICAL SERVICES INC | 3,854,278 | 5.2% | EDGAR |
| SC 13G/A | 2021-02-01 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 7,290,940 | 9.9% | EDGAR |
| SC 13G/A | 2020-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | WEST PHARMACEUTICAL SERVICES INC | 6,830,989 | 9.2% | EDGAR |
| SC 13G/A | 2020-02-12 | VANGUARD GROUP INC | WEST PHARMACEUTICAL SERVICES INC | 7,499,113 | 10.1% | EDGAR |
| SC 13G/A | 2020-02-05 | FRANKLIN RESOURCES INC | WEST PHARMACEUTICAL SERVICES INC | 4,445,600 | 6.0% | EDGAR |
| SC 13G/A | 2020-02-04 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 8,158,920 | 11.0% | EDGAR |
| SC 13G/A | 2019-09-10 | BlackRock Inc. | WEST PHARMACEUTICAL SERVICES INC | 7,389,408 | 10.0% | EDGAR |