Companies / West Pharmaceutical Services Inc
West Pharmaceutical Services Inc
NYSE: WSTCIK 105770Health CareEXTON, PA
Financials · FY2025
Ownership
70.4M shares outstanding · as of Jul 20, 2026
Ownership
| Insiders | 0.54% | 382,054 |
| 10%+ / strategic | 13.50% | 9,500,465 |
| Institutions | 99.12% | 69,755,234 |
| Public float | 0.00% | 0 |
Reported holdings exceed shares outstanding — public float shown as 0; some positions may overlap or lag.
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 18
View all →| Insider | % of shares | Shares |
|---|---|---|
Green Eric MarkCEOPresident, CEO and Board Chair · Director | 0.25% | 175,161 |
Michels Douglas ADirector | 0.07% | 46,496 |
Buthman Mark aDirector | 0.06% | 44,309 |
Feehery William FDirector | 0.05% | 32,519 |
Lai Goldman MylaDirector | 0.03% | 20,435 |
Favorite Annette FSr. VP & Chief HR Officer | 0.02% | 16,828 |
Pucci PaoloDirector | 0.02% | 11,854 |
Keller Deborah LDirector | 0.02% | 11,560 |
Friel Robert FDirector | <0.01% | 5,513 |
Joseph MollyDirector | <0.01% | 4,398 |
Institutional holders 814
View all →| Holder | Value | % of shares |
|---|---|---|
| $2.62B | 13.55% | |
| $2.39B | 9.45% | |
| $1.20B | 4.76% | |
| $784.26M | 4.05% | |
| $618.04M | 3.50% | |
| $562.43M | 3.19% | |
| $477.53M | 2.72% | |
| $421.48M | 2.18% | |
| $336.08M | 1.91% | |
| $311.19M | 1.61% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Norges Bank 13F manager | Exit | Common stock | $-272.04M | -989K -100.00% | 0 | high |
| Q1 2026 as of | Generation Investment Management LLP 13F manager | Add | Common stock | $170.96M | +682K +43.67% | 2,243,976 3.19% of shares | high |
| Q1 2026 as of | Brown Advisory Inc 13F manager | Trim | Common stock | $-151.07M | -603K -31.01% | 1,340,877 1.91% of shares | high |
| Q1 2026 as of | Steadfast Capital Management LP 13F manager | Exit | Common stock | $-118.28M | -430K -100.00% | 0 | high |
| Q1 2026 as of | Amundi 13F manager | Add | Common stock | $74.35M | +297K +85.38% | 644,065 0.92% of shares | high |
| Q1 2026 as of | Champlain Investment Partners, LLC 13F manager | Trim | Common stock | $-67.52M | -269K -56.67% | 205,979 0.29% of shares | high |
| Q1 2026 as of | AQR Capital Management, LLC 13F manager | Trim | Common stock | $-62.46M | -251K -48.43% | 266,944 0.38% of shares | high |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | Add | Common stock | $52.66M | +210K +69.94% | 510,516 0.73% of shares | high |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| Vanguard Portfolio Management | Passive13G | — |
| Vanguard Capital Management | Passive13G | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| WST | — | 955306105 |