West Pharmaceutical Services
WST · NYSE
$388.78+$4.87 (+1.27%)TodayMarket closed ·
Prev close $383.91
Who owns WST
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 40.1% of WST’s shares.
- Vanguard Capital Management, LLC6.6%
- Vanguard Portfolio Management, LLC5.7%
- BlackRock Institutional Trust Company, N.A.5.4%
- State Street Investment Management (US)4.8%
- Next 6 largest institutions17.6%
- All other shareholders59.9%
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Capital Management, LLC | 4.61M | 6.55% |
| Vanguard Portfolio Management, LLC | 4.02M | 5.71% |
| BlackRock Institutional Trust Company, N.A. | 3.83M | 5.44% |
| State Street Investment Management (US) | 3.35M | 4.76% |
| Fidelity Management & Research Company LLC | 2.96M | 4.20% |
| Artisan Partners Limited Partnership | 2.41M | 3.43% |
| Generation Investment Management LLP | 2.03M | 2.88% |
| Geode Capital Management, L.L.C. | 1.90M | 2.70% |
| T. Rowe Price Investment Management, Inc. | 1.81M | 2.56% |
| Walter Scott & Partners Ltd. | 1.31M | 1.86% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 2.25M | 3.20% |
| Vanguard 500 Index Fund | 1.85M | 2.63% |
| Vanguard Mid-Cap Index Fund | 1.53M | 2.17% |
| Stichting Pensioenfonds ABP | 1.34M | 1.90% |
| Fidelity Contrafund | 1.07M | 1.52% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $6.57M (8 trades) of WST on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| HAUGEN JANET BRUTSCHEA | Award | 44 | $16.31K |
| Favorite Annette F | Option exercise | 2.52K | — |
| Favorite Annette F | Sale | 2.52K | $921.26K |
| Favorite Annette F | Option exercise | 2.52K | $226.25K |
| Favorite Annette F | Option exercise | 2.50K | — |
| Favorite Annette F | Sale | 2.50K | $887.50K |
| Favorite Annette F | Option exercise | 2.50K | $224.10K |
| Favorite Annette F | Option exercise | 2.50K | — |
| Favorite Annette F | Sale | 2.50K | $862.50K |
| Favorite Annette F | Option exercise | 2.50K | $224.10K |
Short interest
Settled Sep 30, 2026
- Shares short
- 2.10M
- Days to cover
- 3.11
- % of shares outstanding
- 2.99%
- Average daily volume
- 674.54K
- Change since last report
- −11.6%
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