Institutional Ownership
West Pharmaceutical Svsc Inc
CUSIP 955306105COMWSTQ1 2026
13D / 13G Filings
21
Schedule 13D/13G on record
Beneficial Filers
6
Distinct reporting persons
Largest Stake
13.5%
Max % of class reported
Institutional Holders
741
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
21 filings · latest Oct 31, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Oct 31, 2025 | The Vanguard Group | 13G/A | 13.5% | 9.70M | SEC |
| 2 | Apr 24, 2025 | Blackrock, Inc. | 13G/A | 8.4% | 6.07M | SEC |
| 3 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 12.2% | 9.00M | SEC |
| 4 | Jan 24, 2024 | Blackrock Inc. | 13G/A | 10.5% | 7.78M | SEC |
| 5 | Feb 14, 2023 | Price T Rowe Associates Inc /Md/ | 13G/A | 3.1% | 2.30M | SEC |
| 6 | Feb 9, 2023 | Vanguard Group Inc | 13G/A | 12.1% | 8.99M | SEC |
| 7 | Jan 24, 2023 | Blackrock Inc. | 13G | 11.0% | 8.15M | SEC |
| 8 | Feb 14, 2022 | Price T Rowe Associates Inc /Md/ | 13G/A | 8.4% | 6.24M | SEC |
| 9 | Feb 10, 2022 | Vanguard Group Inc | 13G/A | 11.7% | 8.63M | SEC |
| 10 | Feb 4, 2022 | Franklin Resources Inc | 13G/A | 3.8% | 2.85M | SEC |
11 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for West Pharmaceutical Svsc Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 6.84M | $1.71B |
| 2 | State Street Corp | 3.29M | $825.55M |
| 3 | Artisan Partners Limited Partnership | 2.66M | $666.17M |
| 4 | Bank Of New York Mellon Corp | 2.47M | $618.04M |
| 5 | Generation Investment Management LLP | 2.24M | $562.43M |
| 6 | Geode Capital Management, LLC | 1.91M | $477.53M |
| 7 | Morgan Stanley | 1.46M | $365.50M |
| 8 | Brown Advisory Inc | 1.34M | $336.08M |
| 9 | Longview Partners (Guernsey) Ltd | 1.32M | $329.69M |
| 10 | Fmr LLC | 1.25M | $313.24M |