WSTWest Pharmaceutical Services

$350.14

Who owns WST

734 institutions reported holding WST for 2026Q1, together 98% of the company, fewer than the 787 a quarter earlier.

734

Institutions reporting a position · as of 2026Q1 · down from 787 the quarter before

Shares held by institutions
70.7M

Shares held by institutions · 98% of the company · long US equity positions only, as reported on Form 13F

Reported value
$17.7B

Reported value · at 2026-03-31 prices, not today's

Top 5 holders
34%

Top 5 holders · of the whole company, between five filers

Details
Reporting quarter2026-03-31
2026Q1
Quarters on record
52
New positions
80
Positions exited
135
Added to
236
Reduced
254
Top 10 holdersof the company
47%
Institutional ownership by quarter, 2013Q2 to 2026Q1
QuarterFilersSharesReported value
2026Q173470.7M$17.7B
2025Q478769.2M$19.0B
2025Q374568.3M$17.9B
2025Q271969.5M$15.2B
2025Q169869.4M$15.5B
2024Q473369.4M$22.7B
2024Q371668.3M$20.4B
2024Q276568.0M$22.3B
2024Q176068.2M$26.9B
2023Q476668.4M$24.0B
2023Q373768.1M$25.5B
2023Q271467.8M$25.9B
2023Q167369.2M$23.9B
2022Q462369.0M$16.2B
2022Q363068.4M$16.8B
2022Q264167.9M$20.5B
Largest reported holders, 2026Q1
HolderShares% of companyValue
VANGUARD GROUP INC9.5M13%$2.38B
BlackRock Inc.6.8M9.4%$1.71B
STATE STREET CORP3.3M4.5%$826M
Artisan Partners Limited Partnership2.7M3.7%$666M
Bank of New York Mellon Corp2.5M3.4%$618M
T. Rowe Price Investment Management, Inc.2.3M3.2%$587M
GENERATION INVESTMENT MANAGEMENT LLP2.2M3.1%$562M
GEODE CAPITAL MANAGEMENT LLC1.9M2.6%$478M
MORGAN STANLEY1.5M2.0%$366M
BROWN ADVISORY INC1.3M1.9%$336M

SEC Form 13F data sets (DERA bulk files). 13F is quarterly, filed up to 45 days late, and covers long US equity positions only, no shorts, no derivatives, nothing held below the reporting threshold.

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