Who owns WEST PHARMACEUTICAL SERVICES INC?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of WST from SEC Form 13F filings across 829 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 829 institutions disclosed 70.5M shares of WEST PHARMACEUTICAL SERVICES INC worth $25.24B — about 99.5% of shares outstanding; the largest disclosed holder is BlackRock, Inc.. Source: SEC Form 13F filings, parsed by EvidInvest.
829
13F holders
$25.24B
value, 2026 filers
99.5%
of shares outstanding (70.5M sh)
154
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of WST's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 6.7M | $2.39B | 0.0% | 9.4% | -2.7% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | 4.6M | $1.66B | 0.0% | 6.5% | -1.5% |
| 3 | VANGUARD PORTFOLIO MANAGEMENT LLC | 4.0M | $1.44B | 0.1% | 5.7% | -1.9% |
| 4 | FMR LLC | 3.6M | $1.28B | 0.1% | 5% | +186.0% |
| 5 | STATE STREET CORP | 3.3M | $1.20B | 0.0% | 4.7% | +1.7% |
| 6 | Artisan Partners Limited Partnership | 2.4M | $865.8M | 1.4% | 3.4% | -9.3% |
| 7 | Bank of New York Mellon Corp | 2.0M | $733.7M | 0.1% | 2.9% | -17.1% |
| 8 | GENERATION INVESTMENT MANAGEMENT LLP | 2.0M | $728.2M | 7.1% | 2.9% | -9.6% |
| 9 | GEODE CAPITAL MANAGEMENT, LLC | 1.9M | $680.6M | 0.0% | 2.7% | -0.5% |
| 10 | T. Rowe Price Investment Management, Inc. | 1.8M | $648.0M | 0.4% | 2.5% | -22.9% |
| 11 | MORGAN STANLEY | 1.6M | $568.1M | 0.0% | 2.2% | +8.5% |
| 12 | JPMORGAN CHASE & CO | 1.2M | $413.0M | 0.0% | 1.6% | +11.6% |
| 13 | BROWN ADVISORY INC | 1.1M | $386.0M | 0.6% | 1.5% | -19.8% |
| 14 | Longview Partners (Guernsey) LTD | 1.0M | $371.1M | 6.0% | 1.5% | -21.4% |
| 15 | Invesco Ltd. | 1.0M | $362.5M | 0.0% | 1.4% | -4.4% |
| 16 | UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 884,865 | $317.7M | 0.1% | 1.2% | -2.0% |
| 17 | NORGES BANKNEW | 862,915 | $309.8M | 0.0% | 1.2% | new |
| 18 | GOLDMAN SACHS GROUP INC | 814,772 | $292.5M | 0.0% | 1.2% | +12.0% |
| 19 | KAYNE ANDERSON RUDNICK INVESTMENT MANAGEMENT LLC | 760,622 | $273.1M | 0.8% | 1.1% | -11.4% |
| 20 | TD Asset Management Inc | 731,054 | $262.4M | 0.2% | 1% | -4.9% |
| 21 | NORTHERN TRUST CORP | 709,421 | $254.7M | 0.0% | 1% | -3.0% |
| 22 | Capital Research Global Investors | 609,221 | $218.7M | 0.0% | 0.9% | +0.9% |
| 23 | VAN ECK ASSOCIATES CORP | 604,754 | $217.1M | 0.1% | 0.9% | -15.3% |
| 24 | ProShare Advisors LLC | 598,024 | $214.7M | 0.3% | 0.8% | -9.4% |
| 25 | Findlay Park Partners LLP | 596,646 | $214.2M | 2.9% | 0.8% | -3.3% |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.