Who owns West Pharmaceutical Services (WST)?
385 US mutual funds and ETFs from 163 fund families reported a position in WST for the quarter ending 2026-06-30. Against their own report a quarter earlier, 103 raised shares, 40 opened a new position, 175 cut and 24 sold out.
Largest fund families
| Fund family | Funds | Share of fund-held shares |
|---|---|---|
| Vanguard Index Funds | 6 | 38.3% |
| Ishares Trust | 13 | 10.1% |
| Fidelity Contrafund | 2 | 6.1% |
| T. Rowe Price Mid-Cap Growth Fund, Inc. | 1 | 4.8% |
| Six Circles Trust | 3 | 4.1% |
| Vaneck Etf Trust | 4 | 3.0% |
Tracked managers holding WST
None of the managers Prior Moves tracks on 13F reports WST in its latest filing.
Source: SEC Form N-PORT, which funds file about 60 days after quarter end, and the latest 13F filings. Share counts, not trades: a change can reflect fund inflows or outflows rather than a decision about WST. A record of holdings, not a forecast and not investment advice. See all owner pages or the forecast board for the names our model ranks.
Our model ranks every tracked manager’s likely next buys from 13F filings. Request the dataset sample with a work email.
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